Glossary / C

Psychology terms starting with C

2,831 terms with short definitions. Study these as flashcards

C fibernoun
A thin nerve extension without a myelin covering carries signals slowly, including signals involved in lingering pain.
C-reactive protein (CRP)noun
A protein made mainly by the liver rises during inflammation and provides a blood marker without identifying the cause.
C-sectionabbreviation
Short for cesarean section, this operation delivers a baby through surgical openings in the abdomen and uterus.
C-suitenoun
A company’s most senior executives form this group, often holding job titles that begin with the word chief.
CAabbreviation
These initials can mean Cocaine Anonymous, a recovery fellowship, or chronological age, the time a person has lived since birth.
CA1, CA2, CA3, and CA4abbreviation
These labels identify regions of the hippocampus, a brain structure important for learning and forming memories of facts and events.
caapinoun
A psychedelic drink also called ayahuasca combines a South American vine with other plants and has traditional spiritual uses.
CABabbreviation
A shortened name for the Coolidge Assessment Battery, a set of tests used in psychological assessment.
CABGabbreviation
An operation reroutes blood through transplanted vessels so it can bypass obstructions in arteries supplying the heart.
cable propertiesnoun
An axon's electrical characteristics determine how passive voltage changes spread and weaken with increasing distance.
cable tensiometrynoun
Muscle strength is measured by recording the tension produced when someone pulls against a cable.
cachexianoun
Serious illness can cause a wasting condition involving major muscle loss, weakness, and sometimes loss of body fat.
caco- (cac-)prefix
This word part adds the meaning bad or unpleasant to another word.
cacoethesnoun
An overwhelming urge or compulsion feels impossible to resist and may lack a sensible reason.
caesarean sectionnoun
A baby is delivered surgically through openings made in the pregnant person's abdomen and uterus.
cafardnoun
Historical accounts describe a Polynesian pattern of distress involving withdrawal followed by sudden aggression, resembling amok.
Cafergotnoun
A branded migraine medicine combines ergotamine with caffeine to help treat headache attacks.
cafeteria feedingnoun
Researchers offer children or other animals several foods to study whether their choices meet nutritional needs.
caffeinenoun
A common stimulant drug that blocks a brain chemical linked to sleepiness, reducing fatigue but sometimes causing anxiety.
caffeine intoxicationphrase
A problem after too much caffeine causing at least five symptoms like jitters, insomnia, upset stomach, or fast heartbeat.
CAGEnoun
A four-question alcohol screening test that checks for signs of drinking dependence.
CAHabbreviation
Congenital adrenal hyperplasia involves inherited differences in adrenal hormone production, often reducing cortisol and increasing androgens.
CAIabbreviation
Computer-assisted instruction uses computer activities, practice, and feedback to help people learn.
CALabbreviation
Computer-assisted learning uses computers to support studying through exercises, simulations, games, or individual guidance.
calamus scriptoriusnoun
The pointed lower tip of the fourth brain ventricle's floor lies on the back of the medulla.
calcarine areanoun
An inner region of the brain's occipital lobe surrounds the calcarine groove and includes areas that process vision.
calcarine fissurenoun
A groove along each hemisphere's inner occipital surface serves as a landmark for the primary visual cortex.
calcitoninnoun
A hormone made by thyroid C cells helps lower blood calcium, partly by reducing calcium release from bones.
calcium channelnoun
A membrane protein lets calcium enter cells, helping trigger chemical messenger release at nerve endings.
calcium regulationnoun
The body adjusts calcium absorption, storage, and removal to keep calcium in surrounding fluids within a suitable range.
calcium-channel blockernoun
A medicine reduces calcium entry into certain muscle cells to treat high blood pressure or some irregular heart rhythms.
calcium-deficiency disordersnoun
Too little available calcium can cause health conditions involving weakened bones, muscle spasms, or other problems.
calendar agenoun
A person's age is measured by the time that has passed since birth.
calendar calculationnoun
An unusual skill allows someone to rapidly work out which weekday matches a particular calendar date.
calibrationnoun
Setting a test's scores against a trusted standard so its results can be interpreted accurately.
California Achievement Tests (CAT)noun
A standardized set of school tests measures students' learning in subjects such as reading, language, and mathematics.
California Psychological Inventory (CPI)phrase
A self-report personality test measures social behavior, everyday traits, and adjustment in teens and adults.
California Verbal Learning Test (CVLT)noun
A standardized assessment examines how someone learns word lists and later recalls or recognizes the words.
call boynoun
An older expression describes a male sex worker who arranges private appointments, here specifically with male clients.
call girlnoun
An informal label describes a woman providing paid sexual services who books meetings remotely instead of seeking customers at particular locations.
callbacknoun
Consumer researchers interview someone again to learn whether their satisfaction with a purchase or their views have shifted.
calling cardnoun
In criminal profiling, a distinctive trace an offender leaves serves no practical purpose in the offense but may suggest identity.
callosaladjective
This adjective describes structures or processes involving the corpus callosum, the main nerve bridge linking the cerebral hemispheres.
callosal apraxianoun
Damage to the corpus callosum disrupts learned movements despite sufficient basic movement ability and understanding.
callosal gyrusnoun
The cingulate cortex curves above the corpus callosum and contributes to emotion, memory, and movement planning.
callosal sulcusnoun
A groove on each hemisphere's inner surface divides the cingulate cortex from the corpus callosum.
callosectomynoun
A surgical procedure completely divides the corpus callosum to limit seizure spread between the brain's hemispheres.
callosotomynoun
Surgeons divide some or all corpus callosum fibers to reduce seizure spread between the brain's hemispheres.
callosumnoun
A thick band of nerve fibers connects the brain's two halves and lets them share information.
calmodulinnoun
A protein detects calcium by binding it and helps control cell activities, including processes involved in forming memories.
caloric intakenoun
The energy someone consumes through food and drinks is measured in dietary calories.
caloric nystagmusnoun
Warming or cooling the ear can trigger involuntary rhythmic eye movements used to assess the balance system.
caloric restrictionnoun
Energy intake is reduced while essential nutrients remain sufficient and unhealthy metabolic changes are avoided.
calorienoun
An energy unit measures the heat needed to warm one gram of water by one degree Celsius.
Calvinismnoun
A Protestant Christian tradition shaped by John Calvin emphasizes God's authority and salvation through divine grace and predestination.
CAMabbreviation
Depending on context, this abbreviation means cell adhesion molecule or complementary and alternative medicine.
camaraderienoun
Warm trust and easy friendship that help a group feel close and work well together.
camisolenoun
In historical psychiatric usage, this name describes a straitjacket, a garment used to restrict a person's arm movements.
camouflagenoun
Blending into surroundings, by looks or hard-to-place sounds, helps an animal avoid predators or sneak near prey.
cAMPabbreviation
A cell messenger made from ATP that helps pass signals inside cells.
camphoraceousadjective
A camphor-like smell belongs to one odor category proposed by the historical stereochemical theory of smell.
camphorated tincture of opiumnoun
Also called paregoric, this opium-containing liquid medicine has been used for diarrhea and historically for opioid withdrawal.
Campralnoun
A brand of acamprosate helps people with alcohol dependence maintain abstinence alongside counseling or other behavioral support.
camptocormianoun
A marked forward bend of the trunk can occur with neurological, muscular, or sometimes functional conditions.
campus crisis centernoun
A school or college service provides support, guidance, and help accessing care during students' personal crises.
can-do factorsnoun
An employee's knowledge, skills, and abilities contribute to how well they can perform a job.
Canadian Psychological Association (CPA)noun
A national professional organization supports psychology research, education, ethical practice, and psychologists working in Canada.
canalizationnoun
In psychology, needs become directed toward established ways of satisfying them, such as particular food preferences.
cancellation testnoun
An assessment measures visual searching and movement speed by having someone cross out target symbols among scattered items.
cancernoun
A disease in which abnormal cells grow out of control, invade nearby tissue, and can spread elsewhere.
cancer phobianoun
A lasting, overwhelming fear of developing cancer exceeds the actual danger and can interfere with everyday life.
candidate genenoun
Researchers select a particular gene for investigation because earlier evidence suggests it might influence a trait or health condition.
candidiasisnoun
An infection develops when Candida yeasts grow excessively or invade tissues, often affecting moist areas such as the mouth.
canenoun
A handheld mobility aid can support balance and body weight or help a person with vision loss detect surroundings.
cannabidiol (CBD)noun
A cannabis compound called CBD does not produce THC’s characteristic high and is studied for possible medical benefits.
cannabinoidnoun
A chemical belonging to a group found in cannabis may influence body signaling, with some members producing a high.
cannabinoid receptornoun
A protein on a cell’s surface receives certain cannabis compounds or similar body chemicals and changes the cell’s activity.
cannabisnoun
A marijuana plant drug that can change mood, thinking, memory, and appetite.
cannabis abusenoun
An older diagnosis described repeated cannabis use that caused serious problems with responsibilities, relationships, or other parts of life.
cannabis dependencenoun
An older diagnosis described difficulty controlling cannabis use despite significant problems, sometimes involving tolerance or withdrawal.
cannabis intoxicationphrase
After using marijuana, a temporary state can cause noticeable mood, thinking, perception, and body changes.
cannabis psychosisnoun
Another name describes a cannabis-related disorder involving delusions or hallucinations that seriously disrupt a person’s grasp of reality.
cannabis-induced psychotic disordernoun
Cannabis exposure brings on delusions or hallucinations severe enough to form a disorder beyond ordinary intoxication.
cannibalismnoun
An organism eats flesh from another member of its species, a behavior found in humans and some other animals.
Cannon–Bard theorynoun
A historical theory proposes that brain activity produces an emotional feeling and its bodily response at the same time.
cannulanoun
A small tube placed inside the body provides a route for delivering substances, draining fluids, or collecting blood.
canonnoun
A basic guiding rule helps researchers or thinkers judge evidence and draw sound conclusions.
canonical analysisnoun
A family of statistical methods studies relationships among groups of measurements by combining them into fewer weighted summaries.
canonical correlation analysisphrase
Shows how strongly two sets of variables are related by combining each set into one score.
canonical correlation coefficientnoun
A number measures the strongest correlation obtainable between weighted combinations from two sets of measurements.
capabilitynoun
A person's usable ability or potential that can be developed into effective skill.
capacitynoun
The greatest amount a person can take in, hold, or do mentally or physically.
capacity modelnoun
A theory treats attention as a limited supply that becomes insufficient when tasks demand too much mental processing.
capacity sharingnoun
Attention is divided between two tasks processed simultaneously, with performance depending on how much mental capacity each task receives.
CAPDabbreviation
Central auditory processing disorder involves difficulty making sense of sounds, especially speech, beyond what basic hearing sensitivity would explain.
Capgras syndromenoun
A person holds a persistent false belief that someone familiar has been replaced by an identical-looking stranger.
capitalismnoun
An economic system centers on privately owned businesses and resources, with production and trade largely guided by markets and profit.
capitalizationnoun
Sharing good news with others to increase joy, connection, and memory of a positive event.
capitalization on chancephrase
Finding a pattern that looks real only because random chance pushed results in that direction.
capitationnoun
A healthcare provider receives a set payment per covered person for a period, regardless of how many services they use.
caprylicadjective
In a historical smell classification, this describes a basic odor quality resembling goats or rancid fat.
capsaicinnoun
A chemical in chili peppers activates heat-sensitive sensory receptors, creating a burning sensation, and appears in some pain-relief creams.
captioningnoun
Written words appear alongside a presentation or video to make speech and relevant sounds accessible to viewers.
captivitynoun
A person or animal is kept within a controlled place and prevented from leaving freely.
capture–tag–recapture samplingnoun
Researchers estimate population size by marking one sample, releasing it, and checking how many marked individuals appear in another sample.
CARabbreviation
A learned action that helps someone avoid something unpleasant before it happens.
carbamatenoun
In dementia treatment, certain drugs from this chemical family slow acetylcholine breakdown and may help manage cognitive symptoms.
carbamazepine (CBZ)noun
A medicine mainly used to prevent seizures and also to steady mood during mania.
carbidopanoun
A medicine blocks levodopa’s conversion outside the brain, allowing more levodopa to reach the brain during Parkinson’s treatment.
carbohydratenoun
A sugar or starch food molecule that the body breaks down for energy.
carbohydrate metabolismnoun
The body processes sugars and starches through chemical reactions that supply energy, store fuel, and help maintain blood glucose.
carbon dioxidenoun
A gas made of carbon and oxygen is released during cellular energy production and breathed out by humans.
carbon dioxide therapynoun
An obsolete psychiatric treatment used inhaled carbon dioxide to induce unconsciousness, based on a proposed interruption of abnormal brain activity.
carbon monoxide poisoningnoun
Breathing carbon monoxide disrupts oxygen delivery in the body and can cause confusion, unconsciousness, or lasting brain injury.
carbon tetrachloridenoun
A toxic industrial solvent can alter awareness when inhaled and cause serious damage to the brain and other organs.
carbonic anhydrase inhibitornoun
A drug blocks an enzyme involved in acid balance and fluid production, with uses including glaucoma and some seizure treatments.
carcinogennoun
A substance can increase the chance that exposed living cells develop into cancer.
carcinomanoun
A cancer begins in cells that cover body surfaces or line internal organs, such as skin or lung tissue.
card-sorting testnoun
An assessment asks someone to group mixed cards by rules to examine abilities such as learning, reasoning, or mental flexibility.
card-stackingnoun
A persuasion tactic selectively presents or distorts evidence so one viewpoint appears stronger than a balanced account would support.
cardi-prefix
This word part means heart and appears in medical vocabulary concerning that organ.
cardiac deathnoun
Death is determined by the permanent stopping of circulation and breathing, rather than by testing brain function.
cardiac indexnoun
A measurement divides the heart’s blood output each minute by body surface area to account for body size.
cardiac musclenoun
The heart’s pumping tissue contains branching, striped cells that share electrical signals to coordinate contractions without conscious control.
cardiac neurosisnoun
An older label describes anxiety centered on having, developing, or experiencing a heart condition.
cardiac pacemakernoun
An implanted electronic device monitors heartbeat timing and supplies electrical signals when needed to support an appropriate rhythm.
cardiac psychologynoun
A specialty studies how emotions, behavior, and social conditions affect heart disease and applies psychology to prevention and care.
cardiac rehabilitationphrase
A personalized program that helps heart patients recover through exercise, health habits, and support for stress or mood.
cardinaladjective
Describing a number that tells how many items there are, not their place in order.
cardinal dispositionnoun
In Allport’s personality theory, an unusually dominant personal trait shapes nearly everything someone does.
cardinal humorsnoun
An ancient theory proposed that blood, phlegm, yellow bile, and black bile determined health and temperament through their balance.
cardinal virtuesnoun
Medieval thinkers regarded wise judgment, bravery, moderation, and fairness as basic strengths underlying other good qualities.
cardinalitynoun
The total number of members in a collection is its cardinality, a concept children develop while learning to count.
cardio- (cardi-)prefix
This word part adds the meaning of heart to a longer word.
cardiogramnoun
A recorded graph shows an aspect of the heart’s activity, most often its electrical signals over time.
cardiomyopathynoun
A disease of heart muscle can change its structure or make pumping blood more difficult.
cardiophobianoun
An excessive fear centers on the heart, especially the possibility of having or developing a heart disease.
cardiopulmonary bypass machinenoun
During certain operations, a device temporarily pumps blood through the body and adds oxygen in place of normal heart–lung functioning.
cardiopulmonary resuscitation (CPR)noun
An emergency procedure uses chest compressions, sometimes with rescue breaths, to keep blood circulating when the heart stops pumping effectively.
cardiovascular (CV)adjective
Connected to the heart, blood vessels, and how blood moves through the body.
cardiovascular diseasephrase
A group of health problems that damage the heart or the blood vessels.
cardiovascular fitnessnoun
The heart, lungs, and circulation deliver oxygen that muscles can use to sustain physical activity.
cardiovascular reactivityphrase
How much heart rate and blood pressure change during stress or challenge.
cardiovascular systemnoun
The heart pumps blood through vessels, delivering oxygen and nutrients while carrying away waste.
CAREabbreviation
A helper's style of showing genuine, respectful, empathic understanding so the other person feels safe and heard.
care of youngnoun
Animals support offspring through feeding, sheltering, and other care, often influenced by hormones and the young animals’ presence.
care-and-protection proceedingsnoun
A court becomes involved to protect a child whose caregivers are not adequately meeting the child’s welfare needs.
career anchornoun
In Schein’s theory, a developing understanding of personal abilities, interests, and values guides a person’s choices about work.
career choicephrase
Choosing a job path based on interests, skills, opportunities, guidance, and experiences.
career conferencenoun
A school meeting brings students together with people from an occupation to discuss entry requirements and work opportunities.
career counselingphrase
Helps people choose, plan, or change work paths by matching jobs with their interests, skills, values, and experience.
career developmentphrase
The ongoing process of building and changing work goals, skills, and roles across different career stages.
career guidancenoun
Counseling helps people explore work options and make career decisions using their interests, abilities, values, and experience.
career planningphrase
Helping someone choose a job by matching their interests and abilities with real work options.
career workshopnoun
A guided group session helps participants explore occupations, available opportunities, and the preparation different jobs require.
caregivernoun
A person who regularly meets the daily needs of someone who cannot fully care for themselves.
caregiver burdennoun
Family members and other informal caregivers may experience stress and emotional strain from supporting someone with ongoing health needs.
caregiver supportphrase
Help that gives a person caring for someone else breaks, advice, or services to reduce stress.
caretaking behaviornoun
Parents or other caregivers meet infants’ needs by responding to their signals, providing comfort, and keeping them protected.
carezza (karezza)noun
A sexual practice involves intercourse during which the male partner avoids reaching orgasm, often emphasizing prolonged closeness.
cargo cultnoun
A historical label groups diverse Pacific religious movements that linked rituals with expectations of material goods arriving through supernatural means.
carisoprodolnoun
A muscle relaxant slows central nervous system activity and can cause sedation, intoxication, and dependence.
carnaladjective
This describes bodily appetites and pleasures, with particular emphasis on sexual desire.
carotid arterynoun
Each of these paired neck arteries delivers blood through branches serving the brain, face, and scalp.
carotid sinusnoun
A widened area near a neck artery’s branching point contains sensors that help the nervous system regulate blood pressure.
carotid stenosisnoun
An abnormally narrowed carotid artery can reduce the blood reaching the brain.
carotid-sinus syndromenoun
An unusually strong reflex from neck artery sensors causes a heartbeat slowdown or blood pressure drop that produces fainting.
carotodynianoun
This pain occurs around a carotid artery in the neck and may extend toward the face.
carpal agenoun
An estimate of physical maturity comes from comparing wrist bone development with typical development at different ages.
carpal tunnel syndrome (CTS)noun
Compression of the median nerve at the wrist can cause hand tingling, numbness, pain, or weakness.
Carpenter’s syndromenoun
A rare inherited condition involves early skull bone fusion and finger or toe differences, sometimes accompanied by intellectual disability.
carpentered environmentnoun
A built setting dominated by rectangles and straight edges may shape how people interpret depth and certain visual illusions.
carphologynoun
Repeated, aimless picking or grasping at bedcovers or clothes can occur during delirium or serious illness.
carriernoun
Someone who has one hidden recessive gene and can pass it to a child.
carrier wavenoun
A repeating wave carries information when features such as its strength, frequency, or timing are varied.
carryover effectnoun
An earlier experimental condition continues influencing a participant’s responses during a later condition, making results harder to interpret.
CART analysisnoun
A statistical method builds branching prediction rules by repeatedly dividing observations into groups whose outcomes are increasingly alike.
Cartesian coordinate systemnoun
A graphing system locates points using numbers that measure position along perpendicular axes from a shared starting point.
Cartesian dualismnoun
Descartes proposed that a nonphysical mind and a physical body are distinct kinds of substance that influence each other.
Cartesian selfnoun
In Descartes’ philosophy, the thinking subject can be certain of its own existence because even doubting involves thought.
Cartesian theaternoun
Dennett criticized the idea that conscious experiences gather at one inner location to be viewed by a central observer.
Cartesianismnoun
Descartes’ philosophical system seeks certain knowledge through reason, beginning with truths considered impossible to doubt.
Carus typologynoun
Carus proposed a historical classification that sorted people into five categories based on bodily characteristics.
carve outverb
To arrange certain health services separately, an insurance plan removes them from its main coverage and contracts with another provider.
Carver and White’s BIS/BAS scalesnoun
These questionnaires assess behavioral inhibition and approach tendencies through reported sensitivity to punishment, reward, goal pursuit, and enjoyable opportunities.
CASabbreviation
The Cognitive Assessment System tests young people’s planning, attention, and ability to process information together or in sequence.
Casanova complexnoun
A historical label describes a man’s persistent pursuit of many female sexual partners without seeking emotional attachment or commitment.
casenoun
A single person, group, job, or other unit looked at individually for study or decision making.
case advocatenoun
A person speaks or acts for one individual to defend their rights and communicate their needs or perspective.
case alternationnoun
Reading researchers change words’ uppercase and lowercase letter patterns to study how readers recognize written language.
case grammarnoun
A linguistic approach analyzes words by their meaning roles, such as who acts and what receives the action.
case historynoun
A record gathers someone’s health concerns, life background, and assessment findings to help professionals understand their condition and plan care.
case lawnoun
Law built from judges' decisions in earlier court cases, rather than from laws passed by lawmakers.
case loadnoun
A professional’s workload over a set period depends on both client numbers and how much support each client needs.
case managementphrase
Coordinating a person's services across providers to keep care connected, effective, and affordable.
case managernoun
A care coordinator links clients, helpers, and insurers so services continue smoothly and stay affordable.
case methodnoun
A workplace training approach asks managers or supervisors to develop solutions together for a realistic business problem.
case reportnoun
A written account gathers information about one person’s mental or physical health condition.
case studyphrase
A detailed look at one person or event using many kinds of information.
case-based reasoningnoun
People solve a current problem or make predictions by drawing on what happened in similar earlier situations.
case-control studynoun
Researchers compare people who have a condition with people who do not, examining differences in earlier exposure to possible risks.
case-findingnoun
Services actively identify people who may need mental health treatment through screening, referrals, or contact with other agencies.
casewise deletionnoun
Researchers exclude a whole record from an analysis when it lacks any value needed for that analysis.
caseworknoun
Professional help that assesses a person or family's needs and coordinates services and support.
Caspar Hauser experimentnoun
An animal experiment restricts normal surroundings or sensory input starting at birth to study effects on development.
cassinanoun
An evergreen shrub called yaupon has caffeine-containing leaves used by some Indigenous North American peoples for ceremonial and social drinks.
castenoun
A social group receives its rank mainly through birth within a rigid system that limits movement between groups.
castrationnoun
Removing the testicles, and sometimes the ovaries, by surgery or by making them stop working.
castration anxietyphrase
In Freudian theory, a young boy's fear that he will lose or damage his penis.
castration complexnoun
Freud proposed that children develop unconscious fears or beliefs about losing a penis or having already lost one.
casual crowdnoun
People briefly gather, usually in public, because something happening nearby captures their shared attention.
CATabbreviation
A testing method where a computer changes question difficulty based on each earlier answer.
cat-cry syndromenoun
Missing material from chromosome 5’s short arm causes a genetic condition involving developmental delays and often a distinctive high infant cry.
cat’s-eye syndromenoun
Extra chromosome 22 material causes a rare condition with variable eye, ear, organ, and sometimes intellectual development differences.
cata- (cat-; kata-; kat-)prefix
This word beginning can mean downward, underneath, reversal, or deterioration, depending on the word it helps form.
catabolismnoun
Cells break larger molecules into smaller parts through chemical reactions that often release usable energy.
catabolitenoun
A substance forms when a living organism chemically breaks down a larger molecule.
catalepsynoun
A movement disturbance involves keeping a fixed body position for an unusually long time while showing little response.
catalogianoun
Speech repeatedly returns to particular words or phrases without an apparent meaningful purpose.
catalysisnoun
A chemical reaction proceeds faster because a substance helps it occur without being consumed overall.
catalystnoun
A substance helps a chemical reaction happen faster while remaining available after the reaction.
catamitenoun
This outdated label described a boy subjected to sexual activity by an adult man.
catamnesisnoun
A health history records what happens after a disorder begins, often following an examination or the end of treatment.
cataphasianoun
A speech disturbance involves repeating one word, or more broadly repeating language without an apparent meaningful purpose.
cataphoranoun
In this medical usage, a coma is interrupted by periods when the person becomes partly conscious.
cataplexynoun
A brief, sudden loss of muscle control, often triggered by strong emotion, that can make a person sag or collapse.
Catapresnoun
This brand name identifies clonidine, a medicine that reduces sympathetic nerve activity and is used to lower blood pressure.
cataractnoun
Cloudiness develops in the eye’s lens, making sight less clear and often increasing problems with glare or nighttime vision.
catarrhal ophthalmianoun
Inflammation affects the membrane covering the eye’s white surface and inner eyelids, producing mucus or pus.
catastrophe theorynoun
A mathematical framework explains how gradual changes in conditions can produce sudden, large shifts in a system’s behavior.
catastrophic illnessnoun
A very serious illness carries a substantial risk of major disability or death and often requires extensive treatment.
catastrophic reactionphrase
A sudden, overwhelming emotional outburst when someone with brain damage feels unable to cope or communicate.
catastrophic stressnoun
An exceptionally traumatic event produces an overwhelming stress response that exceeds a person’s usual ability to cope.
catastrophizeverb
To magnify a situation’s possible negative results is to treat disaster as more likely or certain than the evidence supports.
catathymic crisisnoun
A historical diagnostic label described one sudden, severe violent outburst far beyond its trigger, without another identified clinical cause.
catatonianoun
A person becomes unusually still, stiff, or oddly active, showing severe problems with movement and posture.
catatonic excitementnoun
During catatonia, a person may show intense restlessness and unusually excessive movement that seems to lack a clear goal.
catatonic rigiditynoun
A person maintains a fixed body posture for an extended period with little response, as described here under catalepsy.
catatonic schizophrenianoun
An older schizophrenia subtype emphasized major movement disturbances, including prolonged stillness, unusual postures, or extreme activity.
catatonic statenoun
A syndrome disrupts movement and responsiveness, potentially causing marked stillness, stiffness, unusual postures, or excessive activity.
catatonic stupornoun
During catatonia, a person shows very little self-initiated movement and greatly reduced responses to surrounding events.
catch trialnoun
An experiment includes a test with no target signal while recording responses to measure reports made when nothing was presented.
catchment areanoun
A health service or program provides care to people living within a particular geographic region.
catechol-O-methyltransferase (COMT)noun
An enzyme called COMT helps deactivate chemical messengers in the catecholamine family, including dopamine and norepinephrine.
catecholaminenoun
A brain and body chemical, such as dopamine or norepinephrine, that helps nerve cells signal during stress.
catecholamine hypothesisphrase
Suggests that too little dopamine or norepinephrine in brain signaling causes depression, while too much can contribute to mania.
catecholaminergicadjective
Something described this way releases, responds to, or otherwise involves catecholamine messengers such as dopamine or norepinephrine.
categoricaladjective
Describing data sorted into named groups rather than measured on a number scale.
categorical attitudenoun
A thinking style uses general ideas, shifts between perspectives, and considers possibilities beyond the immediate situation.
categorical classificationphrase
Putting people, symptoms, or ideas into separate groups based on shared features.
categorical dataphrase
Information sorted into named groups instead of measured amounts, such as diagnosis type or yes/no answers.
categorical data analysisnoun
Statistical methods examine observations grouped into categories, often testing relationships or predicting which category an outcome will occupy.
categorical imperativenoun
Kant proposed an unconditional moral rule: act only on principles you could consistently will everyone to follow in equivalent circumstances.
categorical intrusionnoun
During recall, someone mistakenly includes an unpresented item that belongs to a meaning-based category shared by studied items.
categorical perceptionnoun
Gradually changing speech sounds are heard as separate categories, with differences easier to notice across category boundaries than within them.
categorical scalenoun
A measurement system uses numbers to assign observations to separate categories, which may or may not have a meaningful order.
categorical thoughtnoun
In Piaget’s theory, reasoning uses broad concepts and classifications rather than staying focused only on particular objects or experiences.
categorical variablephrase
A measure that puts people or things into named groups instead of giving exact numerical amounts.
categories of thoughtnoun
Kant proposed twelve basic concepts, independent of experience, that allow people to organize and understand what they experience.
categorizationnoun
Grouping things, events, people, or experiences into classes by shared features and differences from other classes.
categorized listnoun
A memory study uses this list of items belonging to meaning groups, such as fruits or vehicles.
category fluencynoun
This ability involves producing examples from a given meaning group, often within a short time limit.
category production testnoun
This memory task asks people to name category members, sometimes revealing effects of earlier learning without deliberate remembering.
Category Testnoun
This assessment measures abstract reasoning and flexible thinking by asking people to discover visual rules using feedback on number choices.
category-system methodnoun
Researchers use this approach to sort observations or other data into groups following clearly specified rules.
cathardnoun
Historical cultural accounts applied this name to episodes of uncontrolled aggression described in Polynesia and compared with amok.
catharsisnoun
Releasing buried emotions linked to trauma by bringing the memory back and feeling it again.
cathectedadjective
In psychoanalytic accounts, something described this way carries emotional importance through a proposed investment of mental energy.
cathectic dischargenoun
During therapy, strong emotional expression while exploring past experiences is interpreted in psychoanalytic accounts as releasing mental energy.
catheternoun
A flexible medical tube enters the body to deliver fluid, drain fluid, or maintain an open passage.
cathexisnoun
Psychoanalytic theory proposes that people invest mental energy in someone or something, giving that target emotional importance.
cathinonenoun
A stimulant chemical in khat produces effects on alertness, appetite, and mood and is chemically related to amphetamine.
cationnoun
An atom or molecule with more positive than negative electrical charge belongs to this class of ions.
catoptricsnoun
This branch of optical science examines how light reflects from surfaces.
Cattell–Horn theory of intelligencenoun
This theory distinguishes reasoning through unfamiliar problems from using accumulated knowledge, with later versions including additional broad mental abilities.
Cattell’s personality trait theorynoun
This theory uses statistical patterns to propose 16 underlying personality traits that help explain groups of observable behaviors.
cauda equinanoun
A cluster of spinal nerve roots extends below the spinal cord, with an appearance resembling a horse’s tail.
caudaladjective
This anatomical direction describes a position toward an animal’s tail end or a feature related to its tail.
caudate nucleusnoun
A tail-shaped brain structure in the basal ganglia that helps control movement.
causal ambiguitynoun
Several explanations could account for an outcome, leaving its cause or the direction of influence unclear.
causal analysisnoun
Researchers examine data to judge whether changes in one factor bring about changes in another, using methods with varying strength.
causal attributionphrase
An explanation for why a person acted that points to a specific cause.
causal chainnoun
A linked series of events or conditions where each step helps cause the next outcome.
causal inferencephrase
Drawing a conclusion that one change caused another change, based on evidence and reasoning.
causal latencynoun
An interval separates a cause from the appearance of the effect it produces.
causal lawnoun
A general statement describes a dependable relationship in which one condition produces another or changes its likelihood.
causal mechanismphrase
The direct physical process through which something happens, even if deeper causes also matter.
causal modelingphrase
A set of statistical methods used to test whether several variables may cause changes in each other.
causal nexusnoun
A connection links events or conditions because one brings about another.
causal orderingnoun
This principle places causes earlier in time than the effects they produce.
causal pathphrase
A likely step-by-step route showing how one variable may lead to another in a statistical model.
causal texturenoun
This concept describes reality as many interdependent events whose changing connections involve probabilities rather than guaranteed outcomes.
causal variablenoun
An independent variable is used to explain or predict an outcome, although its causal influence may remain unproven.
causalgianoun
Persistent, intense burning pain after peripheral nerve injury has historically carried this name, now associated with complex regional pain syndrome II.
causalitynoun
One event directly produces another, rather than simply happening at the same time.
causationnoun
When changing one thing directly makes another thing change, a cause-and-effect link exists.
causative verbnoun
A word in this verb class expresses that someone or something brings about an action or change.
causenoun
Something that makes another thing happen, producing an effect or result.
cause-and-effect testnoun
This intelligence assessment asks people to select the most logical causes or outcomes from several alternatives.
cautious shiftnoun
After group discussion, a person chooses a less risky option than they would have chosen alone.
CAVLTabbreviation
An assessment measures children's learning and memory by repeating a spoken word list and checking recall immediately and after waiting.
CBASabbreviation
The Coaching Behavior Assessment System records how often coaches display 12 behaviors to study their influence on athletes.
CBCAabbreviation
Criterion-based content analysis evaluates features of children’s accounts of alleged abuse to help assess credibility without establishing truth by itself.
CBCLabbreviation
The Child Behavior Checklist uses parent ratings to assess a child’s emotional and behavioral difficulties and areas of competence.
CBDabbreviation
Cannabidiol is a cannabis chemical that does not produce THC’s characteristic high and is studied for possible medical uses.
CBGDabbreviation
These initials name corticobasal ganglionic degeneration, involving progressive brain cell loss that can disrupt movement and thinking.
CBTabbreviation
A therapy that changes unhelpful thoughts and actions to improve feelings and behavior.
CBZabbreviation
Carbamazepine is a medicine used to control seizures, ease certain nerve pain, and stabilize mood during mania.
CCC theoryabbreviation
A developmental proposal explains children's increasingly complex rule use through gains in conscious awareness and control over their actions.
CCKabbreviation
Cholecystokinin is a gut hormone that may help signal fullness and also carries messages between certain nerve cells.
CCRCabbreviation
A continuing care retirement community provides older residents with housing and different levels of support as their needs change.
CCRTabbreviation
The core conflictual relationship theme method examines recurring wishes, others’ responses, and personal reactions in stories about relationships.
CCTV systemabbreviation
A closed-circuit television system uses a camera and screen to enlarge writing for people with low vision.
CCUabbreviation
A continuing care unit provides further hospital care after the acute phase of a serious or lasting illness.
CDabbreviation
A childhood disorder marked by repeated aggression, serious rule-breaking, and violating other people's rights.
CDCabbreviation
The U.S. public health agency that tracks disease and gives prevention guidance.
CDFabbreviation
A cumulative distribution function assigns each cutoff the chance of observing a result no greater than that cutoff.
CDIabbreviation
The Children’s Depression Inventory is a questionnaire young people complete to report how strongly they have experienced depressive symptoms.
CDQabbreviation
The Choice Dilemma Questionnaire measures willingness to recommend risky actions by asking what chances of success would be acceptable.
cebocephalynoun
A condition present at birth involves closely positioned eyes and a nose that is absent or incompletely developed.
CEFTabbreviation
An assessment explores children's cognitive style through tasks requiring them to locate basic shapes concealed in increasingly busy visual displays.
ceiling agenoun
On a standardized test organized by mental age, this marks the first level where every response is wrong.
ceiling effectphrase
When many scores bunch near the top, a measure cannot show real differences between high performers.
Celexanoun
This brand name identifies citalopram, an SSRI antidepressant that slows serotonin reuptake between nerve cells.
celiac plexusnoun
A network of abdominal nerves lies in front of the aorta and carries signals associated with internal organs.
celibacynoun
A person remains unmarried, often for religious reasons, or abstains from sexual activity.
cellnoun
The smallest living building block of the body, enclosed by a membrane and containing working parts.
cell adhesion molecule (CAM)noun
A surface protein helps cells attach to neighboring cells or surrounding material, supporting development and guiding growing nerve fibers.
cell assemblynoun
A proposed network of nerve cells becomes linked through repeated shared activity, allowing partial activation to awaken a larger pattern.
cell bodyphrase
The main part of a neuron holding the nucleus and most of the cell's parts.
cell deathphrase
The natural loss of cells during development or damage, often helping shape the nervous system.
cell differentiationnoun
During early development, cells change their structures and activities to take on specialized roles in the body.
cell divisionphrase
When one cell splits to make new cells during growth and development.
cell interactionsnoun
During embryonic development, cells influence how other cells, often nearby ones, develop specialized structures and functions.
cell migrationnoun
During development, cells travel from where they first form to the places where they will settle.
cell nucleusnoun
In many kinds of cells, a compartment enclosed by a membrane holds most genetic information as chromosomes.
cell proliferationnoun
Cells increase in number through repeated division involving mitosis, which copies and separates their chromosomes.
cell theorynoun
This biological principle states that every living organism consists of cells, whether a single cell or many.
cell-mediated immunitynoun
T cells provide targeted immune protection by acting on infected or abnormal cells and directing other immune cells.
cell–cell interactionsnoun
In an embryo, signals or contact from some cells help shape the specialized development of other cells.
cellular automatanoun
These computer models use grids whose cells change step by step according to rules, often involving neighboring cells.
cellular fluidnoun
The liquid contained inside a cell's outer membrane provides the internal environment for many cellular activities.
cellular respirationnoun
Through a series of chemical reactions, cells release energy from nutrients and convert it into forms they can use.
CEMabbreviation
The collective effort model proposes that group effort depends on members' expectations that their contributions will help achieve valued outcomes.
cenesthesia (coenesthesia)noun
Many internal bodily sensations combine into a background sense of being alive and feeling physically well, tired, or unwell.
cenesthopathynoun
A person experiences a broad sense of feeling physically unwell without locating it in any specific body area.
ceno-prefix
This word part adds the meaning common or general to the word it helps form.
censornoun
Freud proposed a mental gatekeeper that keeps unacceptable or upsetting thoughts outside awareness and disguises wishes in dreams.
censored dataphrase
Data with some values unknown because they were not observed or fell beyond the measuring limits.
censored observationnoun
A measurement gives only a limit on the true value because observation ended or the measuring range was exceeded.
censored regressionnoun
This statistical method estimates relationships when some outcome values are recorded only at an upper or lower measurement limit.
censoringnoun
When some study results are missing because the event has not happened before observation stops.
censusnoun
A complete count includes every person in a population, not just a smaller sample.
census tractnoun
A small geographic district has boundaries set for collecting and reporting population information, often useful for assessing community needs.
centnoun
In sound measurement, this logarithmic unit divides an octave into 1,200 equal steps, with 100 steps per equal-tempered semitone.
centernoun
A brain area or other structure that controls a specific body or mental function.
Center for Deployment Psychologynoun
This organization trains behavioral health professionals to address deployment-related psychological needs and provide effective care for military personnel and families.
Center for Epidemiologic Studies Depression Scale (CES-D)noun
This 20-question self-report measure asks about depressive symptoms over the past week to help identify people needing further assessment.
Center for Independent Living (CIL)noun
A community nonprofit led by disabled people provides advocacy, peer support, and practical resources for directing their own lives.
center mediannoun
This large cluster of nerve cells within the thalamus belongs to the intralaminar group and connects strongly with basal ganglia.
center of gravitynoun
An object's weight acts as though concentrated at this point, whose position helps determine whether the object stays balanced.
center–surround antagonismnoun
Stimulating the middle and outer areas of a sensory neuron's receptive field produces opposite effects, helping emphasize contrast.
center–surround receptive fieldnoun
A sensory neuron's responding area has a central zone and surrounding zone whose stimulation affects its activity in opposite ways.
centeredadjective
Mentally steady and well integrated, with a realistic view of oneself, life goals, and everyday challenges.
centeringnoun
A person uses focused attention, often on breathing, to settle themselves, manage stress, or prepare for performance.
Centers for Disease Control and Prevention (CDC)noun
This United States public health agency tracks health problems and supports research and prevention to protect communities.
Centers for Medicare and Medicaid Services (CMS)noun
This United States agency administers Medicare and oversees federal participation in Medicaid and the Children's Health Insurance Program.
centilenoun
A score's position shows what percentage of scores in a comparison group fall at or below it.
centraladjective
Connected to the brain and spinal cord, rather than nerves outside them.
central anticholinergic syndromenoun
Blocking acetylcholine activity in the brain can produce a drug-related syndrome involving confusion, memory problems, sleepiness, or hallucinations.
central aphasianoun
An older, loosely applied label describes difficulties understanding or producing language following damage to the brain.
central auditory abilitiesnoun
These hearing-related skills include telling sounds apart, directing attention toward sounds, and remembering what has been heard.
central auditory processing disorder (CAPD)noun
The brain has difficulty processing sounds, including speech, even when basic sound detection is relatively preserved.
central auditory systemnoun
The brain's hearing structures and pathways process sound information received from the ears, including within the auditory cortex.
central canalnoun
A narrow passage running through the middle of the spinal cord contains cerebrospinal fluid.
central coherence theorynoun
This theory proposes that people tend to combine details into meaningful wholes and that some autistic people favor detail-focused processing.
central conceptual structurenoun
Robbie Case proposed a connected mental network of ideas and operations that helps children think within a particular subject area.
central conflictnoun
Karen Horney proposed an inner struggle between a person's constructive real self and the restrictive demands of an idealized self-image.
central deafnessnoun
Hearing is reduced or absent because the brain's auditory structures are damaged or develop differently.
central dispositionnoun
In Allport's personality theory, a readily noticeable trait shapes behavior across many situations without dominating everything a person does.
central distributionnoun
Within certain statistical families, this distribution has a noncentrality parameter of zero and often represents results under a null hypothesis.
central dyslexianoun
Acquired brain damage disrupts processes for pronouncing or understanding written words while leaving basic visual analysis of words intact.
central executivephrase
The part of working memory that directs attention and handles mental tasks without storing information itself.
central fissurenoun
A prominent groove on each cerebral hemisphere separates the frontal lobe from the parietal lobe.
central graynoun
This brainstem region surrounds the cerebral aqueduct and helps organize defensive responses, including becoming still when danger is perceived.
central inhibitionnoun
Processes in the brain or spinal cord reduce or stop nerve signals that would otherwise guide behavior.
central limit theorem (CLT)phrase
When samples get larger, their averages form a bell-shaped pattern even if the original data do not.
central limited capacitynoun
The mind can handle only a limited amount of information or demanding activity at once.
central lobenoun
The insula is a hidden brain region involved in feelings, taste, body awareness, and some movements.
central momentnoun
A statistical measure averages powers of differences between values and their mean to describe a distribution.
central nervous system (CNS)phrase
This body system includes the brain plus spinal cord and handles sensing, movement, and mental processing.
central nervous system disordernoun
A neurological condition affects the brain, spinal cord, or both.
central neuronnoun
A nerve cell lies wholly inside the brain or spinal cord, including all its extensions.
central nucleusnoun
A cluster of amygdala neurons sends signals to other brain areas that help organize fear responses.
central painnoun
Pain arises because of damage or disease affecting the brain or spinal cord.
central pattern generatornoun
A network of neurons generates repeating signals that help coordinate rhythmic movements such as walking.
central precocious puberty (CPP)noun
Puberty begins unusually early because the brain activates its usual hormone signaling system ahead of time.
central processesnoun
Mental control skills help people plan, make decisions, manage impulses, and adjust their actions toward goals.
central processing dysfunctionnoun
Difficulty understanding, storing, combining, or using information through symbols can interfere with learning.
central processornoun
Some thinking models propose a main mental system that performs operations on stored information.
central reflex timenoun
Part of a reflex's delay comes from signal processing inside the brain or spinal cord.
central route to persuasionphrase
Attitudes change when someone carefully thinks through the strongest reasons and evidence in a message.
central scotomanoun
An area at the center of someone's view has reduced or missing vision.
central sleep apneanoun
Breathing repeatedly pauses or weakens during sleep because the brain's control of breathing becomes disrupted.
central state theorynoun
A philosophical theory proposes that mental experiences and brain states are the same events described differently.
central stimulationnoun
Electrical currents or chemicals are applied to the brain to change its activity.
central sulcusnoun
A prominent groove on each brain hemisphere separates its frontal and parietal lobes.
central tendencyphrase
A number showing where most scores cluster in a set of data.
central visionnoun
Detailed sight around the spot you look directly at depends especially on the retina's fovea.
central-tendency biasnoun
People favor middle rating options and avoid extreme ones, potentially making responses less accurate.
centralismnoun
A psychological viewpoint explains behavior through brain activity and the wider central nervous system.
centralist psychologynoun
A psychological approach emphasizes higher brain activity as the basis of behavior and mental life.
centrality of an attitudenoun
An attitude's centrality reflects how much its subject occupies thought or how strongly it connects with other attitudes.
centralized organizationnoun
An organization keeps most decision authority with leaders at its highest levels.
centrationnoun
Young children may focus on just one noticeable feature of a situation and miss other important parts.
centrencephalicadjective
Something described this way lies around the brain's middle region.
centrencephalic epilepsynoun
A historical label described generalized seizures thought to begin deep within the brain and spread through both hemispheres.
centrencephalic systemnoun
Penfield proposed a central brain system that would unite mental activity and provide a basis for free will.
centrifugaladjective
Movement or signaling travels outward, as when nerves send messages from the brain or spinal cord toward the body.
centripetaladjective
Movement or signaling travels inward, as when sensory nerves carry messages toward the brain or spinal cord.
centripetal impulsenoun
A sensory nerve signal travels inward from the body toward the brain or spinal cord.
centroidnoun
In statistics, a central point represents the average value for each variable in a group of observations.
centromedian nucleusnoun
A large group of neurons within the thalamus has important connections with the basal ganglia.
centromerenoun
A chromosome region holds its copied halves together and helps them separate correctly during cell division.
cephalalgianoun
A medical name describes a headache, regardless of its cause.
cephalicadjective
Something described this way concerns the head or has its location there.
cephalic indexnoun
A head-shape measurement divides the head's greatest width by its greatest length, then multiplies the result by 100.
cephalizationnoun
Evolution concentrates nervous tissue and major sensory organs toward an animal's front end, forming a head region.
cephalo- (cephal-)prefix
This word part adds the meaning of head to a larger word.
cephalocaudaladjective
Development or direction proceeds from the head toward lower body regions, with upper regions often maturing earlier.
cephalocaudal axisnoun
An imaginary lengthwise line extends through the body from its head end toward its tail end.
cephalogenesisnoun
The head takes shape as an embryo grows and develops.
cephalometrynoun
Scientific measurements record the head's size, shape, and proportions to study its structure or growth.
CERabbreviation
A conditioned emotional response develops when a previously neutral cue becomes linked with fear, anxiety, or another negative emotion.
cereb-prefix
This word part contributes the meaning of brain to a larger word.
cerebellaradjective
Related to the cerebellum, the brain area that helps with balance and coordinated movement.
cerebellar ataxianoun
Damage to the cerebellum makes voluntary movements poorly coordinated, affecting activities such as walking or reaching.
cerebellar cortexnoun
An outer layer of gray matter covers the cerebellum and helps process signals for coordinated movement and learning.
cerebellar folianoun
Narrow, repeated folds form the ridged surface of the cerebellum's outer layer.
cerebellar gaitnoun
An unsteady walking pattern with feet placed widely apart results from problems with cerebellar function.
cerebellar hemispherenoun
One of the cerebellum's two large side portions helps coordinate movement and supports some forms of learning.
cerebellar nucleusnoun
A cluster of nerve cells sits deep inside the cerebellum, surrounded by white matter.
cerebellar pedunclenoun
Each cerebellar half has three nerve bundles that carry messages between the cerebellum and other brain regions.
cerebellar rigiditynoun
Damage involving the cerebellum can produce sustained tightness in muscles that straighten limbs.
cerebellar speechnoun
Damage to the cerebellum can make speech uneven in timing and poorly coordinated.
cerebellopontine anglenoun
This space beside the cerebellum and pons contains nerves involved in facial movement, hearing, and balance.
cerebellumnoun
A hindbrain structure that smooths movement, helps balance, and supports learning of some automatic movement patterns.
cerebraladjective
Related to the cerebrum, the brain's large upper part involved in thinking and control.
cerebral achromatopsianoun
After brain damage, a person may lose color vision even though the eyes still work normally.
cerebral amblyopianoun
Brain injury eliminates shape and color perception in one or both visual halves, reducing light perception while usually sparing movement detection.
cerebral anemianoun
Blood reaching the brain contains too little hemoglobin or too few red cells, reducing its ability to deliver oxygen.
cerebral angiographynoun
Doctors use injected contrast material and X-rays to create pictures of vessels carrying blood through the brain.
cerebral angiomatosisnoun
Multiple abnormal blood-vessel growths develop in or around brain tissue and may cause seizures or weakness.
cerebral aqueductnoun
A narrow channel through the midbrain carries cerebrospinal fluid between the brain's third and fourth ventricles.
cerebral arteriographynoun
Injected contrast material makes the brain's arteries visible in X-ray images so doctors can examine their structure.
cerebral arteriosclerosisnoun
Arteries delivering blood to brain tissue develop thicker, stiffer walls that may interfere with circulation.
cerebral atrophyphrase
Shrinkage and loss of brain tissue, often from aging, disease, or injury.
cerebral beriberinoun
Severe thiamine deficiency causes a brain disorder that can involve confusion, poor balance, and abnormal eye movements.
cerebral blindnessnoun
Damage to the brain's visual pathways or cortex causes lost vision, although pupils can still respond to light.
cerebral contusionnoun
A head injury bruises brain tissue, often causing small areas of bleeding and swelling.
cerebral cortexnoun
The brain's folded outer gray layer supports thinking, understanding speech, sensing the world, and making plans.
cerebral deathnoun
Brain function has permanently ceased, including the brainstem functions needed for breathing independently.
cerebral diplopianoun
A disturbance within the brain causes a person to see two images of a single object.
cerebral dominancenoun
One brain hemisphere contributes more strongly than its partner to a particular function, such as producing speech.
cerebral dyschromatopsianoun
Changes in the brain's visual processing reduce color perception or make colors appear distorted.
cerebral dysfunctionnoun
Brain processes work less effectively, potentially affecting abilities such as remembering, speaking, concentrating, or planning.
cerebral dysplasianoun
Brain structures develop abnormally, potentially leaving some regions unusually formed, incomplete, or absent.
cerebral dysrhythmianoun
Electrical rhythms in the brain show abnormal patterns that may accompany neurological illness or other medical conditions.
cerebral edemanoun
Too much fluid builds up in brain tissue, causing swelling and dangerous pressure inside the skull.
cerebral electrotherapy (CET)noun
Low-voltage electrical pulses are applied to influence brain activity, sometimes as treatment for anxiety, depression, or sleep difficulties.
cerebral embolismnoun
Material traveling in the bloodstream becomes lodged in a brain vessel, obstructing circulation and potentially causing a stroke.
cerebral gigantismnoun
An older name for Sotos syndrome describes a genetic condition involving rapid childhood growth, a large head, and developmental differences.
cerebral hemispherenoun
One of the cerebrum's two connected halves supports thinking, perception, and movement through networks that work with the other half.
cerebral hemorrhagephrase
Bleeding inside brain tissue after a blood vessel breaks, often causing stroke symptoms or other brain problems.
cerebral hyperplasianoun
Brain tissue becomes unusually enlarged because its cells increase in number.
cerebral hypoplasianoun
The cerebrum's hemispheres develop incompletely, leaving less developed tissue than expected.
cerebral infarctionnoun
An area of brain tissue dies because its blood supply cannot provide enough oxygen and nutrients.
cerebral infectionnoun
Disease-causing organisms enter brain tissue and multiply, potentially disrupting how the brain works.
cerebral ischemianoun
Brain tissue receives too little blood to meet its needs for oxygen and nutrients.
cerebral lateralizationphrase
Some mental and body functions are handled more by one brain half than the other.
cerebral lesionnoun
A region within the brain has undergone physical damage that may change thinking, feelings, movement, or other functions.
cerebral pacemakernoun
A proposed group of brain cells was thought to set the timing of electrical rhythms across the cerebral hemispheres.
cerebral palsy (CP)phrase
A childhood condition caused by early brain injury that permanently affects movement, posture, and sometimes speech or thinking.
cerebral pedunclenoun
Each of two large midbrain nerve bundles carries signals from the cerebrum toward the brainstem and spinal cord.
cerebral specializationnoun
The brain's left and right hemispheres make different contributions to particular abilities, such as language and spatial processing.
cerebral stimulationnoun
Electrical, magnetic, or other methods influence activity in selected brain regions to study their roles or treat certain conditions.
cerebral syphilisnoun
Syphilis infection affects the brain and its coverings, potentially causing difficulties with memory, attention, behavior, and movement.
cerebral thrombosisnoun
A clot forms within a brain blood vessel and may obstruct circulation enough to cause a stroke.
cerebral traumanoun
An impact or other physical force injures brain tissue, with effects that may be temporary or lasting.
cerebral typenoun
Historical body classifications proposed a type whose supposedly dominant nervous system produced especially strong intellectual abilities.
cerebral vascular accidentnoun
A sudden disruption of brain circulation, through blockage or bleeding, can damage tissue and alter thinking, movement, or awareness.
cerebral vascular diseasenoun
Disease affects vessels supplying brain tissue and can increase the likelihood of strokes or temporary disruptions in brain function.
cerebral vascular insufficiencynoun
The heart and blood vessels fail to deliver enough oxygen-rich blood to meet the brain's needs.
cerebral ventriclenoun
One of four linked spaces within the brain holds cerebrospinal fluid, which helps cushion and support nervous tissue.
cerebral vesiclenoun
An early swelling in an embryo's neural tube grows into a major brain region.
cerebrationnoun
Conscious mental activity includes reflecting on ideas, considering possibilities, and working through problems.
cerebritisnoun
Brain tissue becomes inflamed, often because of an infection.
cerebro- (cereb-)prefix
This word-building element adds the meaning of brain or cerebrum to a compound word.
cerebrocranial defectnoun
A structural or functional abnormality involves both the cerebrum and the skull surrounding it.
cerebromacularadjective
This adjective describes diseases affecting brain function that may also involve deterioration of the retina.
cerebrosidenoun
This fatty substance belongs to a group of lipids found in the insulating myelin around nerve fibers.
cerebrospinal fluid (CSF)phrase
A clear liquid around the brain and spinal cord cushions them and carries nutrients and wastes.
cerebrotonianoun
Sheldon’s historical theory proposed that thin bodies were linked with a reserved, sensitive personality and preference for solitude.
cerebrovascular accident (CVA)phrase
A stroke caused by blocked or broken brain blood vessels, changing movement, feeling, thinking, or alertness.
cerebrovascular diseasenoun
Disease affecting the brain's blood vessels that can cause stroke or brief stroke-like attacks.
cerebrovascular insufficiencynoun
The brain receives too little oxygen-rich blood because blood vessels or the heart cannot deliver enough.
cerebrumnoun
The brain’s largest region has two connected halves and supports perception, memory, thinking, and voluntary movement.
CERQabbreviation
The Cognitive Emotion Regulation Questionnaire measures how often people use different thinking strategies to handle emotions after upsetting events.
certainty of an attitudenoun
A person feels confident that they understand their own opinion and that it is a sound judgment.
certainty of paternitynoun
This describes how sure a potential father can be that an offspring is biologically related to him.
certifiableadjective
In historical mental health usage, someone could meet formal legal requirements for compulsory admission to a psychiatric hospital.
certificate of need (CON)noun
A government approval allows certain healthcare construction or expansion after officials determine that the proposed services are needed.
certificationnoun
An outside group officially confirms a person meets set standards to practice a specialty.
certification lawsnoun
These legal rules govern formal psychiatric admission procedures or who may officially use the professional title of psychologist.
certiorarinoun
A higher court issues an order to review a case or decision from a lower court.
cerumennoun
Earwax is a substance produced in the ear canal that helps protect its skin and trap debris.
cerveau isolénoun
An experimental animal has its midbrain surgically divided between the upper visual and lower auditory colliculi.
cervicaladjective
Describes something involving the neck, such as nerves or bones in that area.
cervical anginanoun
Chest pain resembling heart-related angina arises from problems in the neck’s spine or associated nerves.
cervical ganglionnoun
A cluster of sympathetic nerve cell bodies in the neck relays signals to structures including the eyes and heart.
cervical nervenoun
One of eight pairs of spinal nerves associated with the neck carries sensory information and movement commands.
cervical plexusnoun
A network formed by front branches of the first four cervical spinal nerves supplies parts of the neck and nearby structures.
cervical sprain syndromenoun
Sudden acceleration or deceleration can strain the neck’s soft tissues, causing the injury commonly called whiplash.
cervixnoun
A neck-shaped anatomical region, especially the uterus’s narrow lower end, connects the uterine cavity with the vagina.
CESabbreviation
Cranial electrical stimulation applies a weak electrical current across the head and has been used to promote relaxation or sleep.
CES-Dabbreviation
This 20-question self-report scale measures depressive feelings and behaviors experienced during the past week.
Cesametnoun
This brand name identifies nabilone, a manufactured cannabinoid medicine used to reduce nausea and vomiting associated with chemotherapy.
cesarean section (caesarean section; C-section)noun
A baby is delivered through surgical openings in the abdomen and uterus.
CETabbreviation
A treatment that sends very weak electrical currents through the head to try to reduce symptoms.
CFabbreviation
In hearing research, characteristic frequency means the sound frequency at which a neuron responds at the lowest sound level.
CFAabbreviation
Confirmatory factor analysis tests whether measured results fit a proposed pattern of underlying traits or processes.
CFFabbreviation
Critical flicker frequency marks how fast a light must flash before its flashes appear to merge into steady light.
CFSabbreviation
Chronic fatigue syndrome is a lasting illness involving severe fatigue, reduced daily functioning, and symptoms that can worsen after exertion.
cGMPabbreviation
Cyclic guanosine monophosphate is a messenger molecule that passes signals within cells, including neurons receiving messages from other neurons.
chain of behaviornoun
Several simpler actions connect in a particular order to form a larger behavior pattern.
chain reproductionnoun
A story or idea changes as successive people or groups pass it along.
chained schedulenoun
Reinforcement follows completion of successive requirements for one response, with a different cue signaling each stage.
chainingnoun
Teaching a long behavior by linking small steps and rewarding the completed sequence.
chakranoun
Some South Asian spiritual traditions describe a bodily energy center used as a focus during meditation and yoga.
challengenoun
A difficult obstacle seen as something you can handle and even turn into improvement.
challenge for causenoun
During jury selection, someone asks the judge to exclude a potential juror for a stated reason, such as bias.
challenge suggestionnoun
A hypnotic instruction tests responsiveness to suggestion and may strengthen a person’s experience that their actions happen automatically.
challengedadjective
Formerly used as a polite label for having a disability, but now considered outdated.
challenging behaviornoun
Actions create safety concerns or substantially limit participation in learning, care, or community activities, indicating a need for support.
CHAMPUSabbreviation
An earlier American military insurance program funded healthcare for eligible retired service members, their families, and families of deceased personnel.
chance differencenoun
Two samples differ because of random sampling variability rather than an effect of the researcher’s intervention.
chance variationnoun
Measured outcomes fluctuate because of random influences rather than the particular factors a study aims to examine.
change agentnoun
A person, factor, or process brings about change, often aiming to improve personal functioning or how a group works.
change blindnessnoun
Someone fails to detect a visual change, often when a brief interruption hides the moment it happens.
change effectnoun
In parapsychology, an object’s physical structure is claimed to change through paranormal influence.
change managementnoun
People plan, carry out, and assess changes in organizations or communities while helping others adjust and addressing unexpected effects.
change of lifephrase
This everyday expression usually describes the transition around menopause, when hormonal changes bring menstrual cycles to an end.
change of venuenoun
A court relocates proceedings when finding impartial jurors locally seems difficult, sometimes because news coverage has shaped public opinion.
change scorenoun
The amount a person's score goes up or down between two testing times.
change therapynoun
Discredited practices attempt to suppress or alter LGBTQ+ identities or expressions and can damage psychological well-being.
change-over delay (COD)noun
After switching between available responses, an organism must wait through a set interval before reinforcement becomes available.
changing-criterion designnoun
Researchers assess an intervention by checking whether behavior follows stepwise changes in a target requirement after measuring its starting level.
channelnoun
A pathway that carries coded information from an input source to an output target.
channel capacitynoun
An information channel has an upper limit on how much information it can reliably carry under specified conditions.
channel factorsnoun
Features of a persuasive message’s delivery medium, such as print or audio, can affect how people receive it.
channels of communicationnoun
Information travels through available routes between group members or through sensory means such as speech, gesture, and touch.
chaos theorynoun
This mathematical field studies rule-governed nonlinear systems in which tiny starting differences can grow into greatly different outcomes.
characternoun
A person's usual traits, especially their moral and social qualities, that make up who they are.
character analysisnoun
Wilhelm Reich’s historical psychoanalytic treatment aimed to change lasting personality patterns believed to protect people from difficult feelings.
character developmentnoun
People gradually form moral beliefs, conscience, religious views, and attitudes toward others as their personalities develop.
character disordernoun
Psychoanalysts formerly used this label for personality disorders involving lasting patterns that interfere with everyday functioning.
character displacementnoun
Competing populations evolve differences in traits or behavior that reduce their competition and may contribute to new species forming.
character neurosisnoun
Historical psychoanalysts used this name for personality disorders involving persistent difficulties in thinking, relating, and functioning.
character strengthnoun
A valued personal quality, such as fairness or kindness, helps people live meaningfully and supports others’ well-being.
character structurenoun
A person’s lasting qualities fit together into an organized pattern of character.
character traitsphrase
Stable tendencies involving values, motives, and self-control that guide behavior by moral and ethical standards.
character typenoun
A personality category groups people by shared traits, sometimes using psychoanalytic ideas about defenses or development.
characteristicnoun
A lasting feature or trait that helps describe a person, group, or thing.
characteristic frequency (CF)noun
An auditory nerve fiber responds at its lowest required sound level to this particular frequency.
characterologynoun
An older field studied personality and character; the name also describes unsupported attempts to infer character from appearance.
Charcot–Marie–Tooth diseasenoun
An inherited nerve disorder gradually causes weakness, muscle loss, and reduced sensation, especially in hands and feet.
charismanoun
A compelling personal presence draws people’s attention and earns their trust, sometimes across very large groups.
charismatic authoritynoun
Influence comes from a person’s compelling presence and the credibility others give them because of it.
charismatic leadernoun
A leader inspires unusually strong loyalty and enthusiasm, often through personal appeal or qualities followers deeply admire.
charitynoun
Help given to people in need, sometimes even when the helper expects praise or some return.
charlatannoun
Someone deliberately pretends to possess expertise, abilities, or unusual powers that they lack.
Charles Bonnet syndromenoun
People with reduced vision may see detailed images that are absent while usually recognizing that these experiences are unreal.
charmnoun
A pleasing personal quality that makes other people feel interested, attracted, or comfortable.
Charpentier’s bandsnoun
Apparent bright and dark stripes can seem to trail a narrow moving light viewed against darkness.
Charpentier’s illusionnoun
When two objects weigh the same, the smaller one can feel heavier because their sizes influence weight judgments.
chartnoun
A visual display, such as a table or graph, used to organize and compare information.
chastitynoun
A person follows sexual restraint guided by moral or religious beliefs, sometimes avoiding sexual activity entirely.
chatnoun
A stimulant drug made from a plant whose leaves are chewed to increase alertness and energy.
chauvinismnoun
Excessive loyalty to one’s group includes treating it as superior, often expressed through claims that men outrank women.
CHDabbreviation
Coronary heart disease involves narrowed heart arteries that limit blood reaching the heart muscle.
ChEabbreviation
Cholinesterase is an enzyme that breaks down acetylcholine, helping end the nerve signals carried by this chemical messenger.
cheatingnoun
Getting a better result by breaking rules, lying, or using unfair tricks.
check readingnoun
A machine display shows the system’s current condition so an operator can judge whether it falls within expected limits.
checkerboard patternnoun
Researchers use a grid with alternating bright and dark squares to study vision and activate brain cells responsive to sight.
checklistnoun
A written list of things to watch, record, fix, or think about during a task.
ChEIabbreviation
A cholinesterase inhibitor slows the enzyme that breaks down acetylcholine, allowing this nerve messenger to remain available longer.
cheilophagia (chilophagia)noun
This behavior involves biting your lips repeatedly, rather than doing so just once.
cheiromancynoun
An unsupported practice claims that palm lines and shapes reveal someone’s personality or future.
chelationnoun
A molecule attaches to a metal ion at multiple points, sometimes allowing that metal to be removed from the body.
chemesthesisnoun
Chemicals produce sensations such as cooling or tingling by activating touch, temperature, or pain pathways rather than taste or smell alone.
chemical antagonismnoun
One substance directly combines with another and changes it, reducing or stopping its biological action.
chemical brain stimulationnoun
Researchers or clinicians place active chemicals in selected brain areas to change nerve activity for experiments or treatment.
chemical castrationnoun
Medicines reduce androgen production or effects to treat conditions such as prostate cancer or reduce sexual drive.
chemical communicationphrase
Sending information between individuals through smells or other chemicals, often to signal identity, status, or mating readiness.
chemical dependencenoun
An older diagnostic label describes persistent substance use driven by strong urges despite serious problems, sometimes involving tolerance or withdrawal.
chemical sensesnoun
Sensory systems, especially taste and smell, detect chemicals when molecules interact with specialized receptors.
chemical stimulationnoun
Contact with particular molecules changes activity in taste or smell receptor cells, starting signals that the nervous system processes.
chemical sympathectomynoun
Specific drugs disrupt the activity of selected sympathetic nerves, which help regulate automatic bodily responses.
chemical synapsenoun
At this nerve-cell junction, released messenger chemicals cross a tiny space and influence the receiving cell’s activity.
chemical trailnoun
Some animals deposit chemical markers on surfaces, allowing others in their group to follow the route later.
chemical transmissionphrase
Messages pass from one nerve cell to another when neurotransmitters cross the tiny synapse, or gap.
chemical transmitternoun
A neurotransmitter is a chemical messenger released by nerve cells that influences other cells across a junction.
chemical warfarenoun
Military operations use toxic chemicals as weapons to disable or kill people.
chemistrynoun
The science of how substances are built, what properties they have, and how they react.
chemo brainnoun
Some people experience changes in memory, attention, or thinking during cancer care or afterward, with several possible contributing causes.
chemoaffinity hypothesisnoun
Roger Sperry proposed that nerve cells use matching chemical identities to find appropriate connection partners during development.
chemoattractantnoun
A chemical draws certain developing nerve tips toward it, helping guide where their axons grow.
chemoreceptornoun
A sensory cell or nerve ending detects particular chemicals and turns their presence into nervous-system signals.
chemoreceptor trigger zone (CTZ)noun
A brainstem cell group detects certain chemicals, including some medicines, and can trigger nausea and vomiting.
chemorepellantnoun
A chemical steers certain developing nerve tips away from it, helping shape the routes their axons take.
chemotaxisnoun
Chemical signals guide a cell or organism's travel, drawing it closer or sending it farther away.
chemotherapynoun
A medical treatment that uses powerful drugs to fight disease, especially cancer.
Chernoff facesnoun
Data displays use drawn faces whose features vary to represent values of several different measurements at once.
chessboard illusionnoun
A distorted checkerboard with squares enlarging toward its edges can appear three-dimensional under viewing conditions placing it near the retina.
chest voicenoun
A lower vocal register produces speaking or singing tones often felt as vibrations in the chest.
Cheyne–Stokes breathingnoun
A repeating breathing pattern gradually deepens, then becomes shallower, with pauses between cycles.
chi (qi)noun
The Greek letter used in statistics, especially in the name of the chi-square test.
chi-squarenoun
A test statistic comparing observed counts with expected counts to judge whether differences are likely due to chance.
chi-square distribution (χ2 distribution)noun
A probability distribution describes sums of squared independent normal values, each drawn from a distribution with mean zero and variance one.
chi-square testphrase
Checks whether two category variables are related by comparing actual counts with expected counts.
chiaroscuronoun
Contrasts between bright and shaded areas make objects in a flat picture appear to have depth.
chiasmal syndromenoun
Damage where visual nerves partly cross can reduce sight, often affecting the outer visual areas of both eyes.
chibihnoun
In some Latin American cultural traditions, distress after a fright is understood as the soul leaving the body.
Chicago schoolnoun
This historical psychology movement centered in Chicago emphasized how mental activity helps people and animals adjust to their surroundings.
chicken gamenoun
A decision game rewards standing firm when another yields, but gives both players their worst outcome when neither yields.
chicken poxnoun
An easily spread infection caused by the varicella-zoster virus typically brings itchy blisters, fever, and tiredness.
childnoun
A person who is no longer a baby but has not yet reached adolescence.
child abusenoun
Harm to a child by a caregiver, including physical, sexual, emotional abuse, or neglect of basic needs.
child advocacynoun
Organized efforts by professionals or groups protect children's interests and help them receive needed care and support.
child analysisnoun
A form of psychoanalytic therapy adapts methods for children to explore feelings and proposed unconscious conflicts, often through play.
Child Behavior Checklist (CBCL)noun
A standardized questionnaire asks parents or caregivers to rate children's emotional and behavioral difficulties and, in some versions, strengths.
child carenoun
The supervision and support of children includes meeting their everyday physical, emotional, and practical needs in different settings.
child care facilitiesnoun
Licensed centers provide children with regular daytime supervision and care away from their homes.
child care workernoun
A trained person supports children's daily needs and supervises activities in homes, centers, schools, or other care settings.
child custodynoun
A court's decision about who will care for, protect, and make choices for a child.
child custody evaluationphrase
A psychologist's court-focused review of parenting and a child's needs to recommend custody arrangements.
child day carenoun
Arranged daytime supervision meets children's needs while their parents or usual caregivers are working or otherwise unavailable.
child developmentphrase
The physical, thinking, and behavior changes children go through from birth until the teen years.
child findnoun
A U.S. educational process locates and evaluates children who may have disabilities and need special education or related support.
child guidancenoun
A mental health approach combines treatment, family education, and support to address children's difficulties and help prevent future problems.
child molestationnoun
Sexual abuse occurs when an adult involves a child in sexual contact or other sexual behavior.
child neglectnoun
A caregiver's failure to provide essential care, supervision, or emotional support can leave a child's basic needs unmet.
child pornographynoun
Sexually explicit material depicts children or represents them in sexual situations, including some written or computer-generated content.
child psychologynoun
A branch of psychology studies children's thinking, feelings, behavior, and development, including difficulties and ways to help.
child psychotherapynoun
Psychological treatment adapted for children helps them work through emotional, thinking, or behavioral difficulties, sometimes with family involvement.
child study movementnoun
This organized movement began under Stanley Hall during the late 1800s, using science to understand children and improve their lives.
child supportphrase
After parents separate, a court can require money to help pay for a child's basic and school needs.
child visitationnoun
Court-approved arrangements allow children to spend time with parents or relatives who do not have custody, considering children's interests.
child welfarephrase
A child's safety, health, and emotional well-being, especially when courts or social services get involved.
child with special needsnoun
This outdated label describes a young person whose disability calls for tailored support in schooling, healthcare, or daily activities.
child-centeredadjective
An approach gives priority to children's interests, needs, protection, and healthy development when making decisions.
child-directed speechnoun
Adults often use simpler, extra-clear language patterns and tone when speaking with small children.
child-focused familynoun
A family places children's needs first, sometimes allowing them to outweigh the needs of parents or other members.
child-rearing practicenoun
A customary way of raising children reflects a family's habits or the values of a culture or historical period.
child–parent relationship therapy (CPRT)noun
A structured therapy teaches parents play-based skills to understand their children, strengthen connection, and address emotional or behavioral difficulties.
childhoodnoun
The years from about age two until puberty, after infancy and before adolescence.
childhood absence epilepsynoun
A childhood epilepsy syndrome causes frequent, brief seizures during which awareness suddenly pauses, often with staring.
childhood adversitynoun
Severe or ongoing stressful experiences during childhood can affect development and health, especially when reliable support is missing.
childhood amnesianoun
Most people cannot remember personal events from their first years because memory systems were not mature yet.
childhood apraxia of speechnoun
A speech disorder makes planning and coordinating speech movements difficult, causing inconsistent pronunciation without requiring muscle weakness.
childhood autismnoun
A historical diagnostic label described early developmental differences in social communication alongside repetitive behavior and restricted interests, now within autism spectrum disorder.
childhood depressionphrase
A major depression episode in a child, often showing irritability and poor expected weight gain instead of sadness.
childhood disintegrative disordernoun
A historical diagnosis described marked loss of several acquired abilities between ages two and ten after initially typical development.
childhood disordernoun
A condition during childhood significantly affects emotional health, social functioning, behavior, or learning.
childhood fearsnoun
Children's worries about possible threats often change with development and may fade as understanding and experience grow.
childhood neurosisnoun
Freudian theory proposed that children's psychological symptoms arise when mental defenses attempt to manage inner conflicts.
childhood obesitynoun
A medical condition involves excess body fat in a child and is influenced by biological, behavioral, social, and environmental factors.
childhood psychosisnoun
Psychosis beginning in childhood can involve hallucinations, strongly held false beliefs, or disorganized thinking that makes judging reality difficult.
childhood schizophrenianoun
A rare form of schizophrenia begins in childhood and involves persistent disturbances in perception, beliefs, thinking, and everyday functioning.
childhood sensorineural lesionnoun
Damage in a child's inner ear or hearing nerve pathways can interfere with sound signals reaching or being processed by the brain.
childhood-onset fluency disorderphrase
A childhood speech problem causes repeated sounds, long pauses, or blocks that disrupt smooth talking and make communication hard.
children in need of supervision (CHINS)noun
A juvenile court category identifies children considered to need intervention for age-related rule violations, such as repeatedly missing school.
Children’s Apperception Test (CAT)noun
A projective assessment asks children to tell stories about pictures, aiming to explore their feelings, relationships, and personality themes.
Children’s Auditory Verbal Learning Test (CAVLT)noun
A memory assessment measures how children learn and remember spoken words across repeated presentations and after a delay.
Children’s Complex Figure Testnoun
A child copies a detailed drawing and later redraws it from memory to assess visual memory and related skills.
Children’s Depression Inventory (CDI)noun
This questionnaire measures depressive symptom severity through answers young people give about their experiences over two weeks.
Children’s Embedded Figures Test (CEFT)noun
A visual assessment asks children to locate simple shapes hidden inside complicated pictures to examine separation of details from context.
Children’s Health Insurance Program (CHIP)noun
A U.S. program funded by federal and state governments provides health coverage for eligible children, often above Medicaid income limits.
Children’s Manifest Anxiety Scale (CMAS)noun
A self-report questionnaire adapted from an adult anxiety scale measures anxiety symptoms in children through answers about their experiences.
Children’s Personality Questionnaire (CPQ)noun
A questionnaire measures 14 personality traits through 140 answers provided by children aged 8 to 12.
chilophagianoun
A repetitive behavior involves biting one's own lips again and again.
chimeranoun
An organism contains genetically different cell populations originating from more than one fertilized egg, sometimes through transplantation.
chimeric stimulationnoun
Researchers present combined images, often different face halves, to examine how separated brain hemispheres process visual information.
chimerismnoun
An individual has genetically distinct groups of cells originating from different fertilized eggs.
chin reflexnoun
A tap on the chin can trigger automatic jaw closure, with an unusually strong response suggesting neurological problems.
China whitephrase
An informal street name can mean fentanyl, a powerful opioid, although its use does not reliably identify a substance.
Chinese Room argumentnoun
A philosophical argument proposes that following rules for manipulating symbols does not by itself provide understanding of their meaning.
CHINSabbreviation
A court label for youths needing supervision because of behavior problems, not serious crimes.
chippernoun
An informal label describes someone who occasionally uses tobacco or opiates without an associated substance use disorder.
chiromancy (cheiromancy)noun
A practice claims to reveal personality or predict someone's future through palm features, without scientific support.
chiropracticnoun
A healthcare approach emphasizes manual adjustments, especially of the spine, based partly on proposed links between spinal alignment and health.
chirosophynoun
An unsupported practice interprets palm markings as clues about someone's character or future.
chloral hydratenoun
A sedative drug slows brain activity and was widely used to bring on sleep, with toxicity limiting its use.
chlordiazepoxidenoun
A benzodiazepine medicine has lasting calming effects and is used for anxiety and managing alcohol withdrawal.
chloride channelnoun
A protein passage through a cell's outer membrane lets chloride ions cross and helps regulate nerve activity.
chloropsianoun
A change in color perception makes viewed objects seem unusually green.
chlorpromazine (CPZ)noun
An early antipsychotic medicine that reduces hallucinations and delusions but often causes strong side effects.
chlorprothixenenoun
An antipsychotic medicine in the thioxanthene family helps treat psychotic symptoms and has relatively low potency.
choice axiomnoun
Luce's mathematical rule assumes choosing directly or through successive selections gives the same probability for an option.
choice behaviornoun
A person or animal selects among available options or possible actions.
Choice Dilemma Questionnaire (CDQ)noun
A research questionnaire measures risk willingness by asking what success odds would justify recommending uncertain actions in imagined situations.
choice reaction timenoun
The measured interval runs from a signal's appearance to the response selected for that signal among several possible responses.
choice shiftnoun
An individual's decision changes after discussing the available options with a group.
choice stimulinoun
The possible signals in a reaction-time experiment each require a different assigned response.
choked disknoun
Raised pressure inside the skull causes swelling where the optic nerve meets the retina.
chokesnoun
Rapidly decreasing surrounding pressure can produce nitrogen bubbles that disrupt breathing and circulation, causing this serious type of decompression illness.
choking under pressurephrase
Pressure to succeed makes someone perform below their usual ability in an important situation.
cholecystokinin (CCK)noun
A hormone released by the small intestine helps signal fullness and also carries messages between some nerve cells.
choleric typenoun
An ancient personality category described easily irritated, quick-tempered people and linked these traits to yellow bile.
cholesterolnoun
A fatty substance in animal tissues that helps build cells, but high levels can clog blood vessels.
cholinenoun
An essential nutrient helps build cell membranes and supplies material for making acetylcholine, a chemical messenger used by nerves.
choline acetylasenoun
An enzyme makes acetylcholine by transferring an acetyl group from acetyl coenzyme A to choline.
cholinergicadjective
The adjective describes cells, receptors, or processes that release, respond to, or otherwise involve acetylcholine.
cholinergic drugnoun
A medicine increases acetylcholine's effects or imitates them, often stimulating functions such as digestion and bladder emptying.
cholinergic receptornoun
A protein on a cell's surface responds to acetylcholine and triggers changes in the cell's activity.
cholinergic synapsenoun
A nerve junction passes a signal to another cell by releasing the chemical messenger acetylcholine.
cholinergic systemnoun
Within automatic body control, this network uses acetylcholine signals to influence organs and glands.
cholinesterase (ChE)noun
An enzyme breaks down acetylcholine after nerve signaling, helping stop the message at the synapse, or neuron gap.
chondroectodermal dysplasianoun
An inherited condition causes short stature, extra fingers or toes, and differences in teeth, nails, and sometimes heart development.
chord keyboardnoun
A keyboard produces many letters, numbers, or commands through combinations of a small set of keys.
chorda tympaninoun
A branch of the facial nerve carries taste signals from the tongue's front region and helps control saliva production.
choreanoun
Sudden, uncontrolled jerky movements of the face or limbs seen in some brain disorders.
choreiformadjective
The adjective describes irregular, jerky movements that happen involuntarily and resemble those seen in chorea.
choreoathetosisnoun
A movement pattern combines sudden, irregular jerks with slower twisting movements that occur without voluntary control.
choreoidadjective
The adjective describes movements resembling chorea, with unpredictable jerks occurring outside a person's voluntary control.
choreomanianoun
A historical label described an apparently uncontrollable drive to dance, including reported group outbreaks in medieval Europe.
chorionnoun
The outer protective membrane around an embryo contributes to forming the placenta during human development.
chorionic villus sampling (CVS)noun
A prenatal diagnostic procedure examines a small placental tissue sample to check for certain genetic or chromosome conditions.
choroid layernoun
A pigmented, vessel-rich layer behind the retina nourishes light-sensitive cells and absorbs stray light inside the eye.
choroid plexusnoun
Specialized tissue inside the brain's fluid-filled spaces produces cerebrospinal fluid, which cushions and supports the brain and spinal cord.
Chotzen’s syndromenoun
A rare genetic condition causes some skull seams to close early and can affect the face, fingers, toes, and development.
Christian Sciencenoun
A Christian denomination founded by Mary Baker Eddy teaches that spiritual understanding and prayer can bring healing.
CHRN genesnoun
A gene family provides instructions for making parts of nicotinic acetylcholine receptors, which respond to acetylcholine and nicotine.
chrom-prefix
This word-building element adds the meaning of color to a larger word.
chroma–brightness coefficientnoun
This measure links a color's saturation with its intensity within Munsell's numerical method for describing colors.
chromaticadjective
A color described this way has a hue and some saturation, unlike white, gray, or black.
chromatic aberrationnoun
An image develops colored edges when a lens bends different wavelengths unequally and brings them into focus at different distances.
chromatic adaptationnoun
The visual system becomes less responsive to a color when exposure to it continues.
chromatic auditionnoun
Hearing sounds automatically brings accompanying color experiences in this form of synesthesia.
chromaticitynoun
A light stimulus's color properties can be specified separately from its luminance, using information about wavelength and purity.
chromaticsnoun
This branch of optics explores colors, including how they appear to people who see them.
chromatidnoun
Each copy of a duplicated chromosome, initially attached to its partner, becomes a separate chromosome when the pair divides.
chromatinnoun
DNA and its associated proteins form the material that makes up chromosomes within cell nuclei.
chromatin negativeadjective
A body cell described this way has no visible Barr body, the compact form of an inactive X chromosome.
chromatin positiveadjective
A body cell described this way contains a visible Barr body formed from an inactive X chromosome.
chromatopsianoun
A change in color vision makes objects appear tinted with a particular color.
chromesthesianoun
Sounds, tastes, smells, or other nonvisual experiences automatically produce accompanying color sensations in this form of synesthesia.
chromic myopianoun
An older vision term describes difficulty recognizing colors at distances where someone with typical color vision can still distinguish them.
chromo- (chrom-; chromato-)prefix
This word part adds the meaning of color to a longer word.
chromopsianoun
An alteration in vision gives the surroundings an unusual tint of one color.
chromosomal aberrationnoun
A chromosome has an altered structure, such as a missing, extra, or rearranged section.
chromosomal mapnoun
A stained chromosome displays a recognizable band pattern that helps researchers identify it and examine its structure.
chromosomal mutationnoun
A lasting genetic change affects chromosome arrangement or count, rather than only a few DNA building blocks.
chromosomenoun
A threadlike package of DNA and proteins in a cell nucleus that carries inherited information.
chromosome 18, deletion of long armnoun
Missing genetic material from chromosome 18's longer arm can affect growth, muscle tone, hearing, and learning.
chromosome 4, deletion of short armnoun
Loss of genetic material from chromosome 4's shorter arm causes Wolf–Hirschhorn syndrome, which can affect growth and development.
chromosome 5, deletion of short armnoun
Missing material from chromosome 5's shorter arm causes cri du chat syndrome, often involving developmental delays and distinctive infant cries.
chromosome abnormalitynoun
A cell's chromosomes differ from the usual pattern in their total count or physical structure.
chromosome disordernoun
A health or developmental condition results from changes in how many chromosomes are present or how they are structured.
chromosome mosaicismnoun
An early cell division error can leave groups of cells in one individual with differing chromosome counts.
chromosome numbernoun
The count of chromosomes in a cell is usually 46 in human body cells and 23 in eggs or sperm.
chromotherapynoun
This proposed treatment uses colors or colored light with the aim of improving health or psychological well-being.
chron-prefix
This word part contributes the meaning of time when combined with other word parts.
chronaxie (chronaxy)noun
The shortest electrical pulse needed to activate nerve or muscle is measured at twice the minimum effective sustained current strength.
chronesthesianoun
A proposed mental capacity lets people experience personal time by remembering past events and imagining possible futures.
chronicadjective
Lasting a long time or slowly getting worse, and often hard to cure.
chronic adjustment disordernoun
Stress-related emotional or behavioral difficulties continue beyond six months while the stressor or its consequences persist.
chronic alcoholismphrase
Ongoing heavy drinking that creates alcohol dependence and lasting problems in health, thinking, or daily life.
chronic anxietyphrase
Long-lasting, widespread worry or dread can show up in several anxiety disorders.
chronic brain disordernoun
A condition associated with brain damage causes enduring difficulties in thinking, movement, sensation, or emotional functioning.
chronic carenoun
Ongoing treatment and support help people manage health conditions that continue over long periods.
chronic fatigue syndrome (CFS)noun
A long-lasting illness causes disabling exhaustion, worsening symptoms after exertion, and difficulties that can include unrefreshing sleep and slowed thinking.
chronic illnessphrase
A long-lasting health condition that needs ongoing care and can affect daily life.
chronic mood disordernoun
A mood condition causes persistent emotional symptoms, with few periods when those symptoms settle or disappear.
chronic motor or vocal tic disordernoun
Movement tics or sound tics, but never both types, persist over a year and begin before adulthood.
chronic myofascial pain (CMP)noun
Persistent muscle pain and stiffness are associated with sensitive spots called trigger points, which may also produce pain elsewhere.
chronic obstructive pulmonary disease (COPD)noun
A lasting lung condition restricts airflow, making breathing difficult and often causing coughing or wheezing.
chronic painphrase
Pain that lasts long after treatment, often because the brain and spinal cord keep sending danger signals.
chronic posttraumatic stress disordernoun
An older diagnostic label described posttraumatic stress disorder when symptoms continued for at least three months.
chronic preparationnoun
Researchers perform a procedure on an animal, allow recovery, and then study it over an extended period.
chronic psychosisnoun
Hallucinations, delusions, or related difficulties distinguishing experiences from shared reality continue for an extended period.
chronic schizophreniaphrase
Schizophrenia with symptoms that continue for a long time instead of coming and going briefly.
chronic stressphrase
A lasting state of body or mind strain caused by ongoing stress, even from remembered events.
chronic traumatic encephalopathynoun
A degenerative brain disease associated with repeated head impacts involves distinctive tissue changes and may affect thinking, behavior, and movement.
chronically accessible constructsnoun
Frequently used ideas or mental categories become especially easy to bring to mind when interpreting new experiences.
chronically suicidaladjective
This describes someone experiencing persistent or recurring suicidal thoughts, plans, or attempts over an extended period.
chronicitynoun
A condition's long-lasting or repeatedly returning course over time.
chrono- (chron-)prefix
This combining word part adds a connection to time in words about timing, sequence, or duration.
chronobiologynoun
This branch of biology studies recurring patterns in living things, including daily changes in sleep and alertness.
chronographnoun
An instrument creates a graphical record showing when events occur and how they unfold over time.
chronological age (CA)phrase
The number of months or years a person has lived since birth.
chronometernoun
A highly accurate clock keeps running reliably despite changes in surrounding conditions.
chronometric analysisnoun
Researchers vary what participants encounter and compare response speeds to infer how mental processing works.
chronometrynoun
Time is measured to establish durations, intervals, or when particular events occur.
chronopsychologynoun
Researchers in this field study how shifts in daily sleeping and waking patterns affect people's functioning.
chronosystemnoun
In ecological systems theory, this dimension includes changes and stable conditions across time that shape a person's development.
chronotaraxisnoun
A person experiences confusion about how much time has passed or what day or time it is.
chronotherapynoun
This sleep treatment shifts bedtime later in planned steps until the intended sleep schedule is reached.
chronotopic constraintsnoun
The brain's developing abilities place limits on when particular skills, such as language processing, can emerge.
chunkingnoun
Breaking information into small meaningful groups so short-term memory can hold more at once.
CIabbreviation
A confidence interval estimates a population value using a range calculated by a method with a stated long-run coverage rate.
cicatrizationnoun
Scar tissue forms as the body repairs an injured area.
cichlidnoun
A tropical freshwater fish with spiny fins belongs to a family often studied to understand animal behavior.
CIE XYZ color spacenoun
This mathematical color system represents colors using three abstract components labeled X, Y, and Z.
CILabbreviation
A Center for Independent Living is a nonprofit organization led by disabled people that supports choice, access, and everyday independence.
cilianoun
These tiny projections extend from cells and can serve movement or sensing functions.
ciliary bodynoun
A structure behind the iris contains muscles for focusing and tissue that produces the eye's clear internal fluid.
ciliary musclenoun
An eye muscle adjusts tension on lens-supporting fibers, changing lens curvature to focus at different distances.
ciliary processesnoun
Small folds behind the iris produce clear eye fluid and anchor fibers supporting the lens.
ciliumnoun
A tiny projection extends from a cell and may help it move materials or detect signals.
Cinderella syndromenoun
This historical label describes childhood behavior linked to feeling rejected, neglected, or mistreated by parents.
cingulate cortexnoun
A curved brain area in the limbic system, which helps with feelings, supports emotion, memory, and movement planning.
cingulate sulcusnoun
On the brain's inward-facing surface, a groove runs between cingulate cortex below and superior frontal gyrus above.
cingulotomynoun
This brain surgery destroys selected cingulate tissue and pathways to treat persistent pain or, rarely, severe psychiatric conditions.
cingulum bundlenoun
A band of nerve fibers beneath cingulate cortex links frontal regions with areas around the hippocampus in the temporal lobe.
CIPSabbreviation
This questionnaire measures impostor feelings through 20 statements about doubting earned success and fearing discovery as a fraud.
circadian dysrhythmianoun
The body's usual daily pattern of sleeping and being awake becomes disrupted.
circadian oscillatornoun
A nerve-cell circuit produces repeating signals roughly every 24 hours, helping organize daily sleeping and waking patterns.
circadian rhythmnoun
A roughly 24-hour body clock that guides sleep, alertness, and other daily body changes.
circadian rhythm sleep disordernoun
Sleep difficulties or excessive sleepiness arise when internal daily rhythms conflict with the schedule a person needs to follow.
circannual rhythmnoun
A pattern in an organism's behavior, growth, or bodily activity repeats approximately every year.
Circle of Securitynoun
This attachment-focused intervention helps caregivers understand children's emotional signals and respond in ways intended to strengthen relationship security.
circle of supportnoun
A group helps someone pursue personally chosen goals, often bringing together relatives, friends, and service providers.
circle of Willisnoun
An arterial ring beneath the brain connects blood supplies and may provide alternative routes when circulation is reduced.
circuit resistance trainingnoun
A planned sequence of muscle-strengthening exercises assigns each exercise a set duration or repetition count for fitness or rehabilitation.
circular behaviornoun
An action by one person prompts others to perform a similar action, such as laughing or yawning.
circular causalitynoun
Effects feed back to influence their original causes, continuing a repeating chain of mutual influence.
circular questioningphrase
Asking each family member the same question to reveal different views and relationship patterns in the family.
circular reactionphrase
During Piaget's sensorimotor stage, babies repeat actions that bring interesting results, sometimes with small changes.
circular reasoningnoun
An argument uses the claim it needs to establish as part of its own supporting evidence.
circulating levelsnoun
Measurements show the concentrations of particular substances, such as hormones or medicines, within blood.
circulatory systemnoun
The heart pumps blood through a network of vessels that carries it throughout the body.
circumcisionnoun
Surgical removal of the skin covering the tip of the penis, often done in infancy.
circumlocutionnoun
Using many indirect words because the right word cannot be found, often after language problems or disorganized thinking.
circumplexnoun
A circular diagram arranges variables so similar ones sit near each other and opposing ones sit across the circle.
circumscribed amnesianoun
Memory loss affects particular experiences or a limited period rather than memories generally.
circumscribed beliefnoun
A narrowly focused delusion remains internally coherent, resists contrary evidence, and appears separate from a person's other beliefs.
circumstantial bilingualismnoun
This pattern involves two languages, commonly in working-class immigrant communities where schooling provides little support for the mainly spoken home language.
circumstantial evidencenoun
Information supports a conclusion through inference rather than directly showing that the claimed fact occurred.
circumstantialitynoun
Speech takes a long route through unnecessary details but eventually reaches the intended point.
circumstriate cortexnoun
These visual-processing regions lie beyond primary visual cortex and include areas involved in interpreting features such as color and movement.
circumthanatologynoun
This field studies experiences people report after coming close to death, including unusual perceptions and feelings.
circumvallate papillaenoun
Large bumps near the tongue's rear contain many taste buds along the walls of surrounding grooves.
circumventricular organsnoun
Small structures beside brain ventricles help regulate bodily functions, with many allowing unusually direct exchange between blood and brain tissue.
cirrhosisnoun
Long-lasting liver damage produces extensive scarring that interferes with the liver's normal work.
CISDabbreviation
Critical-incident stress debriefing is a structured discussion, usually in groups, intended to address distress after a traumatic event.
cisgendernoun
Describes a person whose gender identity matches the sex they were assigned at birth.
cissanoun
During pregnancy, a person experiences cravings for unusual foods or substances that provide no nourishment.
cissexismnoun
Unfair beliefs, actions, or social systems give cisgender people advantages while dismissing or excluding people with other gender identities.
cistern puncturenoun
A medical procedure uses a needle near the skull's base to access cerebrospinal fluid in the cisterna magna.
cisternanoun
An enlarged anatomical space holds fluid, or a flattened membrane sac forms part of a cell's Golgi apparatus.
cisterna magnanoun
A spacious cerebrospinal fluid compartment lies between the cerebellum's underside and the back of the medulla.
CITabbreviation
A job-study method that collects examples of very effective or ineffective work behaviors to identify key job duties.
citalopramnoun
A selective serotonin reuptake inhibitor antidepressant that blocks serotonin reabsorption, leaving more serotonin available between neurons.
citation analysisnoun
Researchers examine who cites particular publications, how often, and when to understand patterns in the spread of ideas.
citizennoun
A legally recognized member of a country or similar political group, with the rights and duties that go with it.
cittosisnoun
An older label describes cravings for unusual foods or substances that provide no nourishment.
civil commitmentphrase
A court process allowing involuntary hospital placement for someone with mental illness who has not been charged with a crime.
civil disobediencenoun
People peacefully and openly break selected laws to protest government actions they believe are wrong.
civil emergencynoun
A major disaster threatens people in a community and calls for organized help and protection.
civil rightsphrase
Legal protections that give people equal treatment and basic freedoms in society.
civil rights movementnoun
People organize together to secure political or social rights that their government has denied them.
Civilian Health and Medical Program of the Uniformed Services (CHAMPUS)noun
This historical U.S. program helped cover healthcare costs for eligible military retirees and families, including surviving relatives.
civilizationnoun
A society develops complex institutions and shared cultural achievements in areas such as art, technology, and law.
CJDabbreviation
A rare, fast-moving brain disease that causes severe memory, thinking, and movement problems.
CKabbreviation
Creatine kinase is an enzyme in muscles and brain tissue whose blood levels can help indicate tissue damage.
CLabbreviation
Comparison level is the standard shaped by past relationships that people use to judge satisfaction with a current relationship.
cladisticsnoun
Scientists group organisms by shared evolutionary ancestry and display those relationships using branching diagrams.
claims reviewnoun
An insurer checks whether a healthcare payment request meets coverage, cost, and medical necessity requirements.
clairaudiencenoun
Parapsychology describes a claimed, unproven ability to receive sounds or spoken messages without ordinary hearing.
clairvoyancenoun
Parapsychology describes a claimed, unproven ability to perceive hidden or distant things without using ordinary senses.
clairvoyant dreamnoun
A dream appears to reveal otherwise unknown events when later experiences or information seem to match its contents.
CLaltabbreviation
Comparison level for alternatives measures expected benefits and costs of other relationships or being alone when deciding whether to stay.
clamminessnoun
A combined touch sensation includes coolness, dampness, and slight stickiness occurring together.
clannoun
A social group brings together families who recognize a shared ancestor, whether that ancestry is established or believed.
Clance Impostor Phenomenon Scale (CIPS)noun
A questionnaire uses 20 statements to measure feelings of being undeserving of success and fearing exposure as incapable.
clang associationnoun
Words become connected mainly through similar sounds instead of related meanings, sometimes disrupting coherent speech.
clarificationnoun
A helper restates a person's thoughts or feelings more clearly, without judging them or guessing hidden meanings.
classnoun
A category of things or people grouped together because they share important features.
class advocatenoun
A person speaks or acts for an entire group to defend its rights or represent its interests.
class consciousnessnoun
People recognize their place in a social or economic group and understand interests they share with other members.
class inclusionnoun
Understanding categories includes recognizing that every member of a smaller category also belongs to a broader category containing it.
class intervalnoun
A selected numerical range groups data values together so their frequencies can be summarized.
class limitnoun
Either endpoint of a grouped numerical interval specifies its lowest or highest included value.
class structurenoun
A society's social classes have a particular makeup, arrangement, and pattern of economic and political relationships.
class theorynoun
This view proposes that conflict among economic and social classes strongly shapes society and people's thoughts, goals, and expectations.
classic categorical approachnoun
A diagnostic approach sorts disorders into separate categories, assuming clear boundaries distinguish one disorder from another.
classicaladjective
In psychology, this describes Pavlovian conditioning, the older learning method contrasted with operant conditioning.
classical conditioningphrase
Learning where a neutral cue, after pairing with a reflex trigger, starts causing the response itself.
classical humorsnoun
Ancient medicine proposed that blood, phlegm, yellow bile, and black bile governed health and temperament through their balance.
classical inferencenoun
Statistical conclusions are drawn using how often outcomes would occur across many repetitions under the same conditions.
classical paranoianoun
A historical diagnosis described slowly developing, organized delusions alongside otherwise orderly reasoning, without another disorder explaining them.
classical probabilitynoun
An event's chance is calculated by dividing its favorable outcomes by all possible outcomes, assuming each outcome has equal likelihood.
classical psychoanalysisphrase
A Freudian therapy using free association and dream analysis to reveal unconscious conflicts and change personality.
classical test theory (CTT)phrase
A test score is seen as a person's real ability plus random measurement mistakes.
classical theorynoun
Freud's psychoanalytic account emphasizes unconscious drives, sexual energy, and psychosexual development as influences on personality.
classicism factornoun
In studying responses to art, this style dimension emphasizes traditional ideals, formal order, and polish, especially Greek and Roman influences.
classificationnoun
Putting mental disorders into groups based on shared symptoms and other important features.
classification and regression tree analysisnoun
A statistical method repeatedly splits cases using predictor variables to create groups with increasingly similar outcomes.
classification methodnoun
Employers evaluate jobs for pay by matching their descriptions to established job categories, often using reference jobs.
classification rulenoun
A mathematical formula assigns cases to groups based on measured characteristics, aiming to place similar cases together.
classification tablenoun
A grid compares predicted categories with actual categories, showing how often a model sorts cases correctly or incorrectly.
classification testnoun
An assessment asks people to sort items into categories or uses their answers to place the people themselves into categories.
classifier systemnoun
A computer model learns by changing if–then rules through environmental feedback, with performance judged across the whole system.
classroom disciplinenoun
Teachers use rules, guidance, and responses to behavior to support classroom learning and help students follow expectations.
classroom environmentphrase
The surroundings and social conditions of a learning space that shape students' behavior and learning.
classroom testnoun
A teacher creates an assessment for students in their own class to check what they have learned.
classroom-behavior modificationnoun
Teachers apply learning principles and adjust classroom conditions to change specific student behaviors.
claudicationnoun
A medical label can mean limping or muscle cramps, particularly in the calves.
clausenoun
A group of words with a subject and verb that works as part of a sentence.
claustrophobianoun
Enclosed spaces or situations that feel confining trigger persistent, excessive fear, often leading to avoidance or intense distress.
claustrumnoun
A slender sheet of gray matter lies deep beside the brain's insula, with functions that remain incompletely understood.
clavanoun
An elongated bulge in the medulla contains a nucleus that receives sensory information from the legs.
clavusnoun
A sharply localized head pain feels piercing, as though concentrated into one small point.
clay therapynoun
Working with clay during therapy can help children express feelings, practice physical skills, and experience a sense of control.
clear sensoriumnoun
A person's overall awareness and sensory-related thinking function normally, allowing clear attention and understanding of their surroundings.
clearance (CL)noun
Shows how quickly the body removes a drug, compared with how much is in the blood.
clearance requirementnoun
A security rule limits entry to certain places or access to certain information to people with specific authorization.
cleavagenoun
An early embryo develops through repeated cell divisions that produce smaller cells without increasing its overall size.
cleft palatenoun
A gap in the palate is present at birth because developing tissues did not completely join during pregnancy.
CLEPabbreviation
The College Level Examination Program offers exams through which students can earn college credit for existing knowledge.
Clérambault’s syndromenoun
A person firmly believes someone loves them romantically despite evidence against that belief.
clerical aptitudenoun
A person’s capacity to learn office tasks includes handling words, numbers, typing, and checking information accurately.
clerical testnoun
An assessment measures abilities needed for office work, such as checking records, using words, and working with numbers.
CLESabbreviation
The Constructivist Learning Environment Survey asks students how much classroom activities support actively building understanding and sharing learning decisions.
Clever Hansnoun
A famous horse appeared to solve problems but actually followed subtle, unintentional movements from people who knew the answers.
click-thru ratenoun
The percentage of displayed advertisements that receive clicks measures how often viewers respond by opening them.
clientnoun
A person receiving professional help or services from a therapist, counselor, or social worker.
client abusenoun
A care provider harms a client by misusing professional power, trust, or the client’s vulnerability.
client characteristicsphrase
A person's traits, health, symptoms, and problems that shape what they bring into treatment.
client educationnoun
A professional provides information to help clients understand and change thoughts, feelings, beliefs, or behavior.
client obligationsnoun
Responsibilities agreed upon with a therapist describe what a client is expected to do during treatment.
client rightsphrase
People in treatment must be told benefits and risks, then choose whether to start, continue, or refuse care.
client satisfactionphrase
How pleased a person getting mental health care feels about the results.
client self-monitoringnoun
A client records personal behavior and its circumstances to notice patterns and support changes during treatment.
client-centered consultationnoun
A mental health specialist advises a caregiver or professional about helping a particular person in their care.
client-centered therapynoun
Carl Rogers’s approach supports personal growth through a therapist’s empathy, acceptance, and respect while clients guide their own exploration.
client–patient issuenoun
Professionals debate whether people receiving psychological services should be called clients or patients and what each label suggests.
client–treatment matchingnoun
Clinicians choose therapy approaches and therapists to fit a person’s needs, preferences, and individual characteristics.
climactericnoun
A life transition involves age-related hormonal changes and declining reproductive function, especially the transition surrounding menopause.
climatenoun
How included or left out people feel in a group, workplace, or community.
climaxnoun
Sexual excitement reaches an intense high point, typically involving pleasurable sensations, repeated muscle tightening, and easing tension.
clinging behaviorphrase
After about six months, some children hold tightly to a caregiver and panic when left alone.
clinicnoun
A place where people get health checks, diagnosis, and treatment without staying overnight.
clinicaladjective
Connected to finding and treating mental or medical problems in real patients.
clinical assessmentphrase
A careful process of measuring mental, brain-body, and social factors to understand possible psychological problems.
clinical counselingphrase
Professional help for personal or emotional problems that builds self-understanding, choices, and healthier relationships.
clinical decision support (CDS)phrase
Computer tools that combine patient details and medical knowledge to guide care choices for one person.
clinical depressionphrase
Among professionals, another name for major depressive disorder, a severe, lasting low-mood illness.
clinical diagnosisphrase
Finding which disorder a person has by studying symptoms, history, records, and sometimes test results.
clinical efficacynoun
A treatment’s ability to produce intended benefits is evaluated under carefully controlled research conditions.
clinical evaluationphrase
A careful check of a client's condition and how well treatment is working.
clinical evidencenoun
Information from interviews, tests, observations, and personal records helps professionals understand a person’s difficulties and plan treatment.
clinical geropsychologynoun
A psychology specialty studies and supports older adults’ mental health while considering development across their lives.
clinical health psychologynoun
A psychology specialty uses knowledge about bodies, minds, and social situations to support physical health and adjustment to illness.
clinical hypnosisnoun
A trained professional uses hypnosis and therapeutic suggestions to help address symptoms or behavior as part of treatment.
clinical interviewphrase
A flexible question-and-answer talk lets a clinician adjust questions to understand a person's problems, abilities, and needs.
clinical investigationnoun
A professional examines someone’s difficulties through interviews, tests, observations, records, or detailed study of their personal history.
clinical judgmentphrase
A trained professional's expert decision about symptoms, treatment choices, or likely improvement, based on experience rather than statistics.
clinical judgment researchnoun
Researchers study how mental health professionals reach decisions and how personal traits, surroundings, and thinking processes affect those decisions.
clinical markernoun
An observable feature provides a clue that a disorder may be present.
clinical methodnoun
A professional gathers and interprets information about a person to reach a clinical conclusion or diagnosis.
clinical neurologynoun
A medical specialty identifies and treats conditions affecting the brain, spinal cord, and nerves.
clinical neuropsychologynoun
A psychology specialty evaluates and helps manage changes in thinking, behavior, and daily functioning related to brain conditions.
clinical neurosciencephrase
Uses brain science to understand behavior problems and brain illnesses, improving how clinicians identify and treat them.
clinical pediatric neuropsychologynoun
A specialty assesses children’s thinking and behavior in relation to brain development and uses findings to guide support.
clinical practicephrase
Working directly with patients to assess, diagnose, and treat health or mental health problems.
clinical practice guidelinesnoun
Carefully developed recommendations help professionals and people receiving care choose appropriate options for particular health conditions.
clinical predictionnoun
Using a person's history and signs to make outcome judgments by expert opinion instead of statistics.
clinical psychologynoun
A branch of psychology that studies, diagnoses, prevents, and treats mental, emotional, and behavior problems.
clinical psychopharmacologynoun
A specialty examines how medicines affect thinking, emotion, and behavior and guides their use in mental health treatment.
clinical psychophysiologynoun
Therapists apply knowledge of connections between bodily activity and psychological processes through methods such as biofeedback.
clinical risk assessmentnoun
A clinician uses personal judgment and case information to estimate the chance of specified harmful behavior within a stated period.
clinical significancephrase
Shows whether a study result matters enough to help diagnose or treat a real problem.
clinical social worknoun
A professional field combines therapy with attention to social circumstances and help accessing resources or services.
clinical sociologynoun
An applied sociology approach works with people and communities to study social problems and develop practical changes.
clinical sport psychologynoun
A psychology specialty helps athletes with performance concerns and mental health difficulties, including problems beyond sport.
clinical trialphrase
A study tests whether a new treatment works better than standard care or a comparison condition.
clinical typenoun
A person shows a recognizable pattern of symptoms or behavior associated with a mental health disorder.
clinical utilityphrase
How much a test helps improve health by guiding treatments that work and are practical to use.
clinical utility researchnoun
Studies examine how useful treatments are in ordinary care, sometimes including practical concerns such as access.
clinical validationnoun
Researchers gather evidence that a particular assessment or treatment procedure is useful for its intended clinical purpose.
clinical vampirismnoun
A rare descriptive label covers blood drinking linked to sexual arousal or occurring alongside vampire-related delusions.
clinically relevant behavior (CRB)noun
In functional analytic psychotherapy, session behavior reveals everyday difficulties, improvements, or a client’s understanding of what influences their actions.
cliniciannoun
A health or mental health professional who directly evaluates and treats patients rather than mainly doing research or office work.
clinician ratingnoun
A health professional describes or scores a person’s condition or behavior, often using a structured scale.
clinodactylynoun
A finger has a lasting sideways curve, which may occur alone or alongside certain genetic conditions.
clippingnoun
An existing word loses some sounds or letters but retains its meaning and grammatical category.
cliquenoun
A small circle within a larger social group forms around friendship or shared social standing.
clitoral circumcisionnoun
An older label describes genital cutting involving the clitoris or its covering without medical need, a practice that can cause harm.
clitoral hoodnoun
A movable skin fold covers and protects the clitoris’s external tip.
clitoridectomynoun
A surgical procedure removes some or all clitoral tissue; when performed without medical need, it constitutes female genital mutilation.
clitorisnoun
An organ with many sensitive nerve endings, located partly outside and mostly inside the body, contributes to sexual pleasure.
cloacanoun
A shared chamber receives digestive, urinary, and reproductive passages in early mammalian embryos and many other vertebrates.
clomipraminenoun
A tricyclic antidepressant often used to treat OCD, and sometimes depression or panic disorder.
clonazepamnoun
A benzodiazepine medicine slows nervous system activity and is used to manage panic disorder and certain seizures.
clonenoun
An organism or cell is a genetic copy of another, or belongs to a group descended from one original.
clonicadjective
Describes repeated, rhythmic muscle jerking caused by alternating contraction and relaxation, often during seizures.
clonic phasephrase
Part of a seizure when muscles jerk in repeated, rhythmic bursts after stiffening.
clonic spasmnoun
An involuntary muscle movement involves repeated tightening followed by relaxation.
clonidinenoun
A medicine that lowers blood pressure and can also help with ADHD and drug withdrawal symptoms.
cloningnoun
A biological process produces genetic copies of DNA segments, cells, or whole organisms.
Cloninger’s alcoholism typologynoun
A proposed classification separates alcohol dependence into later-starting and earlier-starting patterns that differ in personality, family history, and behavior.
Cloninger’s psychobiological model of personalitynoun
A personality theory proposes four temperament traits influenced by inheritance and three character traits shaped partly by experience.
clonusnoun
Rapid, rhythmic muscle jerking occurs when muscles repeatedly tighten and relax without voluntary control.
Clopixolnoun
A brand name identifies zuclopenthixol, an older type of antipsychotic medicine used to treat psychotic symptoms.
clorazepatenoun
A benzodiazepine medicine with lasting effects helps treat anxiety, symptoms during alcohol withdrawal, and some seizures.
closed adoptionnoun
An adoption arrangement provides no contact between a child's birth parents and adoptive parents.
closed call systemnoun
An animal's vocal communication uses a limited set of calls or stops adding or changing calls after a developmental stage.
closed economynoun
An operant learning experiment supplies all of a planned reward within experimental sessions, with none supplied elsewhere.
closed groupnoun
A group keeps its original membership and does not admit newcomers during its course, such as during therapy.
closed head injuryphrase
A brain injury from a blow or sudden movement when the skull stays unbroken.
closed marriagenoun
A historical concept describes marriage with little personal or relationship change, relying on legal commitment for permanence and sexual exclusivity.
closed questionnoun
A question limits answers to supplied choices or requests a brief, definite response.
closed scenarionoun
An experimental task requires participants to solve a given problem by selecting from a restricted set of options.
closed shopnoun
A workplace arrangement requires people to belong to a labor union before they can be hired.
closed skillnoun
A movement skill is performed in stable, predictable surroundings with similar conditions each time.
closed societynoun
A society maintains rigid social arrangements and beliefs while resisting criticism and differences among people.
closed systemphrase
A group or organization that shuts out outside input and resists change or new information.
closed-captioned televisionnoun
Television offers optional onscreen text representing dialogue and relevant sounds, supporting access for viewers who cannot hear the audio.
closed-circuit television system (CCTV system)noun
A camera enlarges written material on a screen to support reading for people with low vision.
closed-class wordsnoun
Grammatical words, such as pronouns and prepositions, belong to categories that rarely gain new members.
closed-loop systemnoun
A system monitors its results and uses that feedback to adjust its operation toward a desired condition.
closedmindednessnoun
A personality tendency involves holding beliefs with strong certainty and resisting alternative views or new evidence.
closetedadjective
Describes someone who has not shared being LGBTQ+ with certain people, or with anyone.
closingnoun
The planned ending of a therapy or counseling session, started by either client or therapist.
closurenoun
People naturally fill in missing parts so an incomplete picture or sound seems whole.
Closure Flexibility Testnoun
A visual perception test asks someone to find which of four complicated designs contains a given simple shape.
clouded sensoriumnoun
A state of reduced mental clarity makes concentrating and thinking clearly difficult.
clouding of consciousnessnoun
A mental state combines confusion, difficulty concentrating, and reduced awareness of surrounding events.
cloverleaf skullnoun
A congenital skull condition produces three rounded bulges and can occur with fluid buildup around the brain and developmental difficulties.
clozapinenoun
A strong atypical antipsychotic used when others fail, but it needs blood tests for dangerous white blood cell loss.
cloze procedurenoun
A reading activity removes selected words from a passage and asks learners to fill the gaps using context.
CLTabbreviation
The central limit theorem says that, under suitable conditions, averages from increasingly large random samples follow an approximately bell-shaped distribution.
club drugnoun
A psychoactive substance is associated with recreational use at dance venues, parties, or similar social gatherings.
clubfootnoun
A physical condition holds the foot in a twisted position, often pointing inward and downward, and commonly exists at birth.
clumsy automationnoun
Poorly assigning tasks between people and machines fails to improve safety or efficiency, often by creating too much or little work.
cluster analysisnoun
Statistical methods sort people or other observations into groups according to similarities across measured features.
cluster evaluationnoun
Evaluators coordinate assessments across related projects or sites and share findings to understand common results and contributing factors.
cluster headachenoun
A very painful one-sided headache around one eye that comes in daily bursts for weeks or months.
cluster randomizationnoun
Researchers use chance to assign existing groups, such as classrooms, to different experimental conditions.
cluster samplingphrase
Researchers randomly choose whole groups, then smaller groups within them, to reach people for a study.
cluster suicidenoun
More suicide deaths occur than statistically expected within a particular place, social network, or period.
cluster-randomized trialnoun
An experiment compares interventions by assigning whole groups to study conditions through chance and accounting for members' shared group.
clustered datanoun
Observations form groups whose members share features, so differences between groups help explain variation across the full dataset.
clusteringnoun
During recall, related items often come out together in groups instead of one mixed list.
clutteringnoun
A speech fluency disorder involves an unusually fast or uneven pace that makes spoken messages difficult to understand.
CMabbreviation
The cochlear microphonic is an electrical response from inner-ear hair cells whose pattern closely follows incoming sound waves.
CMASabbreviation
The Children's Manifest Anxiety Scale is a questionnaire developed to measure anxiety symptoms reported by children.
CMEabbreviation
Through continuing medical education, physicians develop and update knowledge, skills, and professional abilities after earning their medical degree.
CMHCabbreviation
A community mental health center offers local services that help prevent mental health problems, provide treatment, and support recovery.
CMIabbreviation
The Cornell Medical Index is a historical health questionnaire used to screen physical complaints and psychological symptoms.
CMPabbreviation
With chronic myofascial pain, lasting muscle pain and stiffness are associated with sensitive areas called trigger points.
CMSabbreviation
A U.S. government agency manages Medicare and oversees Medicaid and a public insurance program for children.
CNSabbreviation
The brain and spinal cord, which carry messages and control many body functions.
CNS abnormalitynoun
A problem affects the structure or functioning of the central nervous system, which includes brain and spinal tissues.
CNS depressantnoun
A drug reduces central nervous system activity, potentially slowing reactions, reducing alertness, and affecting breathing.
CNS stimulantnoun
A drug increases central nervous system activity, often making someone more alert and less tired.
CNS vasodilationnoun
Blood vessels supplying the brain widen, allowing increased blood flow through brain tissue.
CNVabbreviation
Short for contingent negative variation, this slow electrical brain signal appears between a warning and an action cue, indicating expectation.
Coabbreviation
In psychophysics, Co labels the comparison stimulus used to judge another stimulus.
CO blobabbreviation
A cytochrome oxidase blob is a small neuron patch in primary visual cortex with high enzyme activity and wavelength sensitivity.
Co-Dependents Anonymousnoun
A peer support organization uses twelve steps to help members change relationship patterns involving unhealthy dependence.
co-occurrencenoun
When two or more things usually happen together, they show co-occurrence, without proving one causes the other.
coachingnoun
Guided training that helps a person build specific skills or improve work or life performance.
Coaching Behavior Assessment System (CBAS)noun
An observation method counts twelve categories of coaches’ actions to study coaching and its effects on athletes.
coacting groupnoun
Two or more people carry out tasks near each other with little need to communicate or coordinate.
coaction effectnoun
A person’s performance changes, for better or worse, when others nearby are doing the same activity.
coaction tasknoun
An individual carries out a goal-directed activity alongside other people who are doing similar activities.
coactivationnoun
Two different stimuli trigger one shared response at the same moment.
coactive sportnoun
Participants perform the same sporting activity independently, without needing to coordinate their movements with other players.
coadaptationnoun
Different species develop adaptations, including behaviors, that fit together and make them dependent on one another.
coalitionnoun
People or groups join forces to pursue a shared goal, often while keeping their separate identities.
coarse tremornoun
Unwanted shaking involves relatively slow, large movements of a body part or larger muscle group.
coarticulationnoun
An action changes depending on nearby actions in a sequence, especially when neighboring speech sounds influence pronunciation.
cobeddingnoun
Sibling babies, such as twins, are placed together on one sleeping surface or in one incubator.
cocanoun
A shrub native to South America has leaves that contain cocaine and have long been used for their stimulant effects.
cocainenoun
A powerful stimulant drug that briefly boosts energy and mood by keeping dopamine, serotonin, and norepinephrine active longer.
cocaine abusenoun
An older diagnosis described repeated cocaine use causing major life problems when the separate diagnosis of dependence did not apply.
Cocaine Anonymous (CA)noun
A voluntary peer organization supports recovery from problematic cocaine use through a twelve-step approach.
cocaine dependencenoun
An older diagnosis described persistent cocaine use despite serious problems, often involving tolerance or withdrawal.
cocaine intoxicationnoun
Recent cocaine use causes temporary, significant changes in behavior or mental state, together with physical effects such as rapid heartbeat.
cocaine intoxication deliriumnoun
Recent cocaine use causes rapidly developing confusion and disrupted attention and awareness beyond the usual effects of intoxication.
cocaine withdrawalphrase
After heavy cocaine use stops, a person may feel very depressed, tired, hungry, slowed down, or restless.
coccygeal nervenoun
The lowest pair of spinal nerves lies in the tailbone region.
coccyxnoun
The tailbone forms the lowest end of the backbone from several joined vertebrae.
cochleanoun
A spiral, fluid-filled structure inside the ear contains sensory cells that convert sound vibrations into electrical signals.
cochlear aplasianoun
A developmental condition involves the absence of the cochlea, the ear’s spiral hearing structure.
cochlear ductnoun
The middle fluid-filled channel within the cochlea contains the structures that support hearing receptors.
cochlear echonoun
The inner ear generates faint sounds that sensitive equipment can measure, either spontaneously or after sound stimulation.
cochlear emissionsnoun
The cochlea produces faint sounds, either spontaneously or after sound stimulation, that can help assess its functioning.
cochlear implantphrase
A surgically placed device sends sound signals directly to the hearing nerve for people with severe deafness.
cochlear microphonic (CM)noun
Hair cells inside the ear produce an electrical signal whose changing pattern closely follows incoming sound vibrations.
cochlear nervenoun
The hearing branch of cranial nerve eight carries signals from the cochlea into the brainstem.
cochlear nucleusnoun
A cluster of brainstem neurons receives incoming auditory nerve signals and begins further processing of sound information.
cochlear recruitmentnoun
Additional neurons associated with the cochlea begin responding as a sound becomes stronger.
Cochran Q testnoun
A statistical test checks whether yes-or-no outcome rates differ across multiple conditions measured in the same participants or units.
Cockayne syndromenoun
A rare inherited disorder affects growth and nervous system development, often causing sunlight sensitivity, hearing difficulties, and learning delays.
cocktail-party effectnoun
A person can follow one conversation amid competing voices, while some meaningful background information may still catch their attention.
cocktail-party universalnoun
A proposed category covers feelings said to be shared by everyone but discussed without being measurable.
cocoanoun
A food powder made from roasted, ground cacao seeds with much fat removed contains the active chemicals theobromine and caffeine.
coconsciousnessnoun
Someone experiencing dissociative identity disorder may be aware of experiences belonging to another of their identity states.
cocontractionnoun
Muscles that pull a joint in opposing directions become active together.
cocounselingnoun
Peers take turns providing counseling to each other and receiving it in return.
CODabbreviation
Short for change-over delay, this is an imposed wait before reinforcement can follow switching between available response options.
codabilitynoun
Naming agreement measures how consistently people using the same language choose matching words for a particular thing.
code of ethicsnoun
A profession’s written principles and rules guide members toward responsible conduct in their work.
code switchingnoun
A speaker shifts between languages, dialects, or styles of speech to fit a situation or express social meaning.
code testnoun
An assessment asks someone to replace symbols with other symbols according to a specified code.
codeinenoun
An opioid medicine reduces pain and coughing and can cause sleepiness, pleasant feelings, and dependence.
codependencynoun
A relationship pattern involves excessive emotional reliance on another person, sometimes alongside that person’s substance use or other ongoing difficulties.
codificationnoun
Information or items are systematically arranged into categories or converted into a code that others can interpret.
codification-of-rules stagenoun
In Piaget’s theory, children around age eleven begin treating agreed rules as binding parts of an organized system.
codingnoun
Turning information into symbols, categories, or signals so it can be stored, scored, or sent.
coding testnoun
A task measures performance by asking someone to replace symbols with matching symbols according to a supplied key.
codominancenoun
Several animals share a high social rank within their group, sometimes through temporary alliances.
codonnoun
Three neighboring genetic letters in DNA or messenger RNA specify a protein building block or a signal for protein production.
coefficientnoun
A number that shows how much of a quality or relationship is present.
coefficient alphaphrase
A number showing how consistently items on a test measure the same thing.
coefficient of agreementnoun
A number summarizes how closely different judges or measuring tools agree when assigning cases to categories.
coefficient of alienationnoun
A statistic indicates how poorly one variable predicts another, calculated as the square root of one minus their squared correlation.
coefficient of associationnoun
A number describes the strength, and sometimes direction, of a statistical relationship linking two variables.
coefficient of concordancenoun
Kendall’s W measures how similarly several judges rank the same items, with higher values indicating greater agreement.
coefficient of contingencynoun
A statistic measures how strongly two variables are connected when their possible values are categories without a natural order.
coefficient of determinationphrase
Shows how much of one variable's differences can be predicted from its link with another.
coefficient of multiple determinationnoun
The statistic R² gives the share of outcome variation accounted for by several predictors together in a linear model.
coefficient of relatednessnoun
A number estimates the proportion of genetic variants two individuals share through common ancestry.
coefficient of reliabilitynoun
A statistic estimates how consistently an assessment measures differences between people rather than random measurement error.
coefficient of variationnoun
This statistic measures relative spread using a ratio: standard deviation divided by the average, sometimes converted to a percentage.
coefficient of visibilitynoun
A number expresses human visual sensitivity to a particular light wavelength relative to the wavelength of greatest sensitivity.
coenesthesianoun
Blended signals within your body give you a quiet overall sense of existing physically and feeling well, unwell, rested, or tired.
coeno- (coen-; cene-; ceno-)prefix
This word part adds the meaning common, shared, or general to the words it helps form.
coenzymenoun
A small organic molecule that is not a protein helps an enzyme carry out a chemical reaction.
coenzyme Q10 (CoQ10)noun
A naturally occurring substance helps cells produce usable energy and also acts as an antioxidant.
coerced confessionnoun
An accused person admits guilt because of pressure such as threats, force, or promises rather than a freely made choice.
coercionnoun
Using threats, force, or punishment to make someone do what you want.
coercive behaviornoun
Actions pressure or force another person to comply, sometimes appearing to express care or concern.
coercive persuasionnoun
An organized program uses intense pressure and control to try to reshape people’s beliefs, attitudes, or behavior.
coercive powerphrase
Getting people to obey by using force, penalties, or warning them bad consequences will follow.
coercive treatmentnoun
A person receives therapy or another clinical intervention without giving informed, voluntary agreement.
coevolutionnoun
Two or more species undergo evolutionary changes that influence each other across generations.
coexistence hypothesisnoun
One explanation proposes that later misinformation competes with an intact original memory and is easier to recall because it is newer.
cofacilitatornoun
A therapist or trainee shares leadership of a therapy group, helping guide sessions or observe group interactions.
coffeenoun
A common drink made from roasted beans that contains caffeine, a stimulant that increases alertness.
Coffelt decisionnoun
A 1994 California settlement required expanded community living and improved service planning for people with developmental disabilities leaving institutions.
cofigurative culturenoun
In Margaret Mead’s classification, people in this kind of culture learn mainly from others close to their own age.
Cogan’s syndromenoun
A rare condition, thought to involve autoimmunity, combines eye inflammation with inner ear problems affecting hearing and balance.
CogATabbreviation
The Cognitive Abilities Test assesses students’ reasoning through tasks involving language, numbers, and visual patterns.
Cogentinnoun
A brand name for benztropine identifies a medicine used for certain antipsychotic movement side effects and Parkinson’s symptoms.
cogito ergo sumphrase
Descartes’ Latin statement argues that the act of thinking establishes the thinker’s own existence.
cognateadjective
Words described this way developed from a shared ancestral word, sometimes across different languages.
Cognexnoun
A brand name for tacrine identifies a medicine historically used for Alzheimer’s symptoms that was limited by liver toxicity.
cognitionnoun
Mental processes used to notice, remember, think, judge, imagine, and solve problems.
Cognitive Abilities Test (CogAT)phrase
A school test battery that measures students' verbal, math, and nonverbal reasoning skills.
cognitive abilityphrase
Mental skills used to notice, learn, remember, understand, reason, judge, and use language.
cognitive adaptation modelnoun
This model proposes that coping with threatening events involves finding meaning, rebuilding control, and restoring a positive view of oneself.
cognitive agingphrase
Describes how thinking skills like attention, memory, and choices change as people grow older across life.
cognitive aidnoun
An external tool or display supports thinking, remembering, or completing tasks.
cognitive analytic therapynoun
This brief therapy blends psychodynamic understanding with cognitive behavioral methods, helping clients and therapists jointly examine and revise established mental patterns.
cognitive appraisal theoryphrase
Says emotions arise from how people judge what a situation means and whether they can handle it.
cognitive architecturenoun
A proposed model describes how mental components work together to support thinking and problem solving, often through computer simulation.
cognitive arousal theory of emotionnoun
The Schachter–Singer theory proposes that emotions depend jointly on bodily arousal and how someone interprets that arousal.
cognitive assessmentphrase
Measures how well a person thinks, remembers, learns, and solves problems.
Cognitive Assessment System (CAS)phrase
A test battery measures planning, attention, and two processing styles to understand children's thinking strengths and weaknesses.
cognitive balance theorynoun
Heider’s theory proposes that people prefer consistent relationships among their attitudes toward another person and a shared object or issue.
cognitive behavior modificationnoun
A psychotherapy approach helps people examine and change unhelpful thinking and behavior while recognizing their connection with emotions.
cognitive behavior theorynoun
This family of theories explains behavior partly through how people mentally represent and interpret their surroundings.
cognitive behavior therapy (CBT)phrase
A therapy that changes harmful thoughts and actions to improve feelings and daily functioning.
cognitive behavioral couples therapynoun
Partners examine and change unhelpful beliefs about each other and relationships while practicing more constructive ways of interacting.
cognitive behavioral group therapynoun
A therapist guides several people in changing unhelpful thoughts and practicing skills to meet specific behavioral goals.
cognitive behavioral play therapynoun
A therapist uses guided play to help young children develop coping skills and change unhelpful thinking and behavior.
cognitive behavioral stress management (CBSM)noun
A brief therapy approach teaches people to reconsider unhelpful thoughts and practice skills for handling stress.
cognitive clicknoun
During therapy, someone suddenly recognizes an error in their thinking and sees a need to revise their beliefs.
cognitive closurenoun
A person reaches the feeling that they understand something and see how its parts fit together.
cognitive complexitynoun
Thinking that uses many connected ideas at once, making judgments more detailed but often harder.
cognitive complexity and control theory (CCC theory)noun
This developmental theory proposes that growing awareness and self-control let children apply increasingly complex systems of rules.
cognitive conditioningnoun
Learning occurs through repeatedly pairing a stimulus with a response or behavior that someone imagines or anticipates.
cognitive consistencynoun
This describes how closely someone’s thoughts agree logically, with one belief supporting or leading to another.
cognitive consistency theorynoun
A family of theories proposes that people change attitudes to make their thoughts, beliefs, and evaluations fit together.
cognitive consonancenoun
Two thoughts or beliefs fit together because one supports or follows from the other.
cognitive constructnoun
An element of knowledge helps someone understand and interpret information about people or situations.
cognitive controlphrase
Mental processes that help you plan, organize, and guide your thoughts and actions toward a goal.
cognitive copingphrase
Using your thoughts to handle stress, such as reframing the problem or planning what to do next.
cognitive declinephrase
A gradual drop in thinking skills like memory, attention, or judgment can happen with aging or illness.
cognitive deconstructionnoun
A mental state involves little emotion or future awareness, with thinking narrowed to immediate, concrete sensations.
cognitive deficitphrase
Much poorer than expected thinking, memory, or problem-solving ability for a person's age and schooling.
cognitive derailmentnoun
Thoughts shift between topics with weak or missing logical connections, sometimes quite suddenly.
cognitive developmentphrase
The way thinking skills like memory, reasoning, and problem solving grow and become more advanced over time.
cognitive discriminationnoun
The ability to tell concepts apart includes recognizing which examples belong to a concept and which do not.
cognitive disordernoun
A condition disrupts mental abilities involved in remembering, understanding, organizing, or managing thoughts and actions.
cognitive dissonancephrase
Feeling upset when your beliefs, attitudes, or actions clash, pushing you to make them match.
cognitive dissonance theoryphrase
People feel mental discomfort when their beliefs and actions clash, pushing them to restore consistency.
cognitive distortionnoun
A recurring thinking error bends how someone understands events, often making situations seem worse or less balanced.
cognitive distractionnoun
Competing thoughts or mental activities pull attention away from a task, goal, sensation, or feeling.
cognitive domainphrase
A specific area of thinking ability, such as memory, language, or attention, checked when judging neurocognitive disorders.
cognitive dysfunctionphrase
Problems with thinking, learning, remembering, or understanding that make daily mental tasks harder.
cognitive electrophysiologynoun
A recording method uses sensors on the scalp to measure electrical activity produced by the brain.
Cognitive Emotion Regulation Questionnaire (CERQ)noun
A 36-item questionnaire measures how often adolescents and adults use nine thinking strategies to handle emotions after upsetting events.
cognitive enhancernoun
A drug is used to support abilities such as memory and thinking, often when illness or injury has impaired them.
cognitive ergonomicsnoun
A field studies how thinking abilities, tasks, and surroundings interact to improve the design of work systems.
cognitive ethologynoun
A field investigates animals' possible mental experiences and how these shape behavior in their natural surroundings.
cognitive evaluation theorynoun
A theory proposes that performance changes depending on whether rewards feel like recognition of achievement or attempts at control.
cognitive facultynoun
A particular mental ability supports a kind of thinking, such as using language or recognizing faces.
cognitive fatiguenoun
Mental tiredness during prolonged, demanding thinking can reduce attention, motivation, speed, and accuracy.
cognitive flexibilityphrase
Being able to look at a situation fairly and change your thinking or actions when needed.
cognitive floodingnoun
A therapy method uses intense imagined encounters with feared situations to help people experience fear as manageable and reduce it.
cognitive functioningphrase
How well a person thinks, learns, remembers, understands, and uses judgment and language.
cognitive generalizationnoun
Knowledge or thinking skills learned in one setting are applied to problems in a different setting.
cognitive grammarnoun
A theory explains language structure through broader thinking abilities, including forming categories and connecting ideas.
cognitive heuristicnoun
An experience-based mental shortcut helps someone decide or solve problems efficiently but can produce mistakes.
cognitive hypothesis testingnoun
Someone solves a problem by proposing possible rules and testing them until one consistently produces correct answers.
cognitive impairmentphrase
Problems with memory, learning, language, perception, or thinking that make mental tasks harder.
cognitive impenetrabilitynoun
A proposed property of some mental processes makes them unaffected by existing knowledge or beliefs, with little conscious control.
cognitive intelligencenoun
A person's mental abilities support learning, remembering, reasoning, solving problems, and reaching sensible judgments.
cognitive interdependencenoun
People in a close, committed relationship increasingly understand themselves as a pair with shared goals, perspectives, and identity.
cognitive interviewnoun
A structured interview uses memory cues and varied recall techniques to help eyewitnesses remember more about an event.
cognitive learning theorynoun
A theory explains learning through changes in mental understanding, including how people represent events and connect information.
cognitive loadnoun
The amount of mental effort a task uses from your limited attention and thinking resources.
cognitive mapnoun
A mental picture of places and their links that helps someone find the way around.
cognitive misernoun
A person often saves mental effort by choosing quick, workable answers through shortcuts instead of examining every possibility.
cognitive modelphrase
A way of explaining how thoughts and mental pictures guide what people notice, understand, and do.
cognitive narrowingnoun
Attention concentrates on one feature of something while its broader context receives less consideration.
cognitive neuropsychologynoun
A field studies how brain damage affects mental abilities to understand how thinking normally works.
cognitive neurosciencenoun
A scientific field investigates how brain cells and networks produce mental activities such as remembering, perceiving, and reasoning.
cognitive operationphrase
Using mental pictures or ideas by sorting, linking, expanding, or recalling them from memory.
cognitive overloadphrase
When mental tasks demand more attention and processing than a person can handle effectively.
cognitive penetrabilitynoun
A mental process can change because of what someone knows, believes, or wants to achieve.
cognitive perseverationnoun
A person keeps repeating a thought or strategy even when the situation calls for stopping or switching.
cognitive perspectivenoun
An approach explains behavior by examining how people interpret information, remember experiences, and work through problems.
cognitive plasticitynoun
Mental abilities can change through experience, including practice that improves learning or remembering.
cognitive problem-solving skills trainingnoun
A treatment helps children showing disruptive behaviors examine their thinking and practice steps for resolving disagreements, aiming to ease frustration.
cognitive processphrase
How the mind takes in, stores, changes, and uses information for thinking, learning, and solving problems.
cognitive processing therapy (CPT)phrase
A trauma-focused therapy helps people challenge mistaken beliefs they formed after trauma, reducing posttraumatic stress symptoms.
cognitive psychologynoun
Studies how people notice things, pay attention, think, remember, and use language.
cognitive rehabilitationnoun
Treatment helps people rebuild mental abilities or develop ways around thinking difficulties caused by illness or brain injury.
cognitive rehearsalnoun
In therapy, someone imagines challenging situations and practices helpful responses or coping statements in their mind.
cognitive remediationphrase
A treatment that improves thinking skills like attention and memory after brain injury, stroke, or severe mental illness.
cognitive reservephrase
Built-up mental flexibility helps some people function normally longer despite brain injury, disease, or aging changes.
cognitive resource theorynoun
A framework proposes that demanding mental work uses limited capacity, leaving less available for other thinking activities.
cognitive response theorynoun
A theory proposes that attitude change depends mainly on how many favorable or unfavorable reactions people generate toward a message.
cognitive restructuringphrase
Helps people notice unhelpful thoughts, question them, and replace them with more realistic ones.
cognitive schemaphrase
A mental framework that helps people organize information and quickly make sense of experiences.
cognitive sciencephrase
A field that studies thinking and the mind by combining psychology, brain science, language, philosophy, and computers.
cognitive self-guidance systemnoun
In Vygotsky's proposed account, talking to oneself helps organize actions and work through problems.
cognitive self-managementnoun
Someone uses inner speech, mental pictures, or both to guide behavior during stressful or demanding situations.
cognitive setnoun
An established collection of ideas about oneself and the world shapes how someone interprets situations and acts.
cognitive sign principlenoun
A learning principle proposes that cues become signals predicting events or outcomes in the surrounding world.
cognitive slippagenoun
Thinking becomes mildly disconnected, so the links between successive ideas are less clear or logical.
cognitive specificity hypothesisnoun
A proposal links particular emotional states, such as anxiety or depression, with distinct patterns of automatic thinking.
cognitive stagenoun
In some developmental theories, a period features a kind of thinking that differs fundamentally from thinking in other periods.
cognitive strategyphrase
A planned way of guiding your thinking, such as self-talk to stay focused, confident, and energized.
cognitive structurenoun
A mental framework organizes related knowledge, beliefs, or attitudes so they can guide understanding and responses.
cognitive stylenoun
A person's usual way of taking in information, thinking about it, and solving problems.
cognitive systemnoun
A collection of thoughts or beliefs forms a meaningful whole through the relationships connecting its parts.
cognitive task analysisnoun
A method examines the knowledge and thinking steps someone needs to perform a task skillfully.
cognitive theoryphrase
Explains behavior by focusing on mental processes like attention, memory, thinking, planning, and language.
cognitive theory of leadershipnoun
A family of models explains leadership through how leaders and group members think, interpret situations, and perceive one another.
cognitive therapy (CT)phrase
A talk therapy that helps people spot unrealistic thoughts and build healthier ways of thinking and acting.
cognitive trainingnoun
Structured mental exercises aim to strengthen or preserve thinking skills, although benefits beyond practiced tasks vary.
cognitive triadphrase
Three negative beliefs in depression about yourself, the world, and what will happen next.
cognitive tunnelingnoun
Attention narrows to one kind of information during demanding or stressful tasks, leaving other useful details unnoticed.
cognitive unconsciousnoun
Mental activities such as recognizing patterns and using memories can influence behavior without entering conscious awareness.
cognitive vulnerabilitynoun
Beliefs or attitudes that make someone more likely to develop depression, anxiety, or other emotional problems.
cognitive walkthrough methodnoun
Evaluators work through a product's tasks from intended users' viewpoints to identify confusing steps and likely difficulties.
cognitive well-beingnoun
A person's judgments about satisfaction with life overall and with particular areas make up this aspect of well-being.
cognitive-social learning theorynoun
This theory explains learning and behavior through mutual influences among personal thoughts, actions, and surroundings.
cognitive-transactional theorynoun
This theory explains stress through how people judge threats, assess coping resources, and respond to situations.
cognitive–affective crossfirenoun
Feedback creates conflict when thoughts favor an existing self-image while feelings favor a more flattering picture.
cognitive–affective personality systemnoun
This theory describes personality as interconnected thoughts and emotional tendencies that shape responses to different situations.
cognitive–evaluative consistencynoun
The positive or negative direction of someone's beliefs matches their overall attitude to a greater or lesser extent.
cognitive–motivational–relational theorynoun
This theory explains emotions through equally important roles for interpreting events, pursuing goals, and relating events to those goals.
cognitively based persuasionnoun
An attempt to shift someone's attitude focuses mainly on changing beliefs about the target's qualities.
cognitively guided instructionnoun
Teachers adapt lessons to students' understanding and encourage students to develop their own ways of solving problems.
cognitivismnoun
The view that thoughts and mental processes explain behavior better than just observable actions.
cognitivistnoun
A theorist emphasizes mental processes when explaining intellectual development or early language learning.
cognizeverb
To recognize something mentally or understand it involves this act of knowing.
cogwheel rigiditynoun
Muscle stiffness causes repeated catches and releases when another person moves a limb, producing a ratchetlike sensation.
cohabitationnoun
Living together as an unmarried romantic couple sharing a home and daily life.
Cohen’s dnoun
Shows how far apart two group averages are, using standard deviation, a common measure of spread.
Cohen’s kappaphrase
Shows how much two judges truly agree on category ratings after removing agreement that could happen by luck.
coherencenoun
Logical fit among separate thoughts or beliefs so they make sense together.
cohesionnoun
The strength of the bonds that keep a group connected and wanting to stay together.
cohortnoun
A group of people who share the same birth period or another important experience.
cohort analysisnoun
Researchers statistically examine data from people with a shared characteristic or experience to understand patterns associated with that group.
cohort effectphrase
Differences caused by growing up in the same time and sharing similar life experiences.
cohort samplingnoun
Researchers select and observe groups whose members share a feature, such as a birth year or experience.
cohort studynoun
Researchers repeatedly observe the same group with a shared characteristic or experience to examine changes across time.
cohort-sequential designnoun
Researchers follow several groups starting at different ages, combining repeated observations with comparisons between age groups.
coital anorgasmianoun
A woman does not experience orgasm during vaginal intercourse, even though orgasm may occur through other stimulation.
coitusnoun
Sexual intercourse usually involves a penis entering a vagina, although the word can cover other forms of sexual contact.
coitus a tergonoun
Sexual intercourse occurs with the partner whose penis is involved positioned behind the other partner.
coitus analisnoun
Sexual intercourse involves a penis entering another person's anus.
coitus in anonoun
This Latin expression describes sexual intercourse involving penile entry into the anus.
coitus inter femoranoun
Sexual activity involves placing a penis between a partner's thighs held together.
coitus interruptusnoun
During vaginal intercourse, a person withdraws their penis before ejaculation in an attempt to prevent pregnancy.
coitus intra mammasnoun
Sexual activity involves positioning a penis in the space between a partner's breasts.
coitus prolongatusnoun
During this form of sexual intercourse, the partner with a penis does not reach orgasm.
coitus reservatusnoun
During sexual intercourse, the partner with a penis deliberately holds back ejaculation.
cokenoun
In drug-related language, this informal name means cocaine, a stimulant that affects brain activity and mood.
cola nutnoun
A seed from certain tropical African trees contains caffeine, a stimulant that can increase alertness.
cold cognitionnoun
Thinking proceeds without emotional involvement, as when someone sorts neutral information or handles an unemotional task.
cold emotionnoun
Certain stimulants produce bodily signs of emotional arousal without a recognizable feeling underlying those signs.
cold pressor pain testnoun
Researchers assess pain responses by having a participant place a limb in very cold water.
cold spotnoun
A small skin location detects cooling through temperature-sensitive nerve endings.
cold turkeyphrase
Stopping a drug all at once without replacement medicine, often causing strong withdrawal symptoms.
cold-blooded animalnoun
An animal gets most of its body heat from its surroundings, so external conditions strongly influence its temperature.
cold-deck imputationnoun
Researchers fill gaps in a dataset using replacement values taken from a separate, external source.
coldnessnoun
Showing little empathy, meaning care for others' feelings, and giving very little emotional support.
coleadershipnoun
Two or more people divide responsibilities for organizing, guiding, and motivating a group.
coleranoun
In some Latino communities, this cultural illness concept links intense anger with physical distress and disrupted bodily balance.
colicnoun
Some healthy infants experience frequent, lengthy crying spells whose cause remains unclear.
colitisnoun
Inflammation affects the colon, a major section of the large intestine.
collaborationnoun
Working together with shared goals while respecting each person's needs and ideas.
collaborative carephrase
Different helpers work together to assess problems, plan treatment, coordinate services, and track how well a client is doing.
collaborative empiricismphrase
In CBT, therapist and client work as teammates testing thoughts and building change together.
collaborative evaluationnoun
Service staff, and sometimes service users, help assess a program while an evaluator guides their work.
collaborative family health carenoun
Professionals from different fields coordinate care and share decisions with patients and families, considering physical, psychological, and social needs.
collaborative filteringnoun
A computer suggests options using preferences or choices recorded from people with similar tastes or behavior.
collaborative learningnoun
People deepen their understanding by working together on a task and exchanging ideas or strategies.
collaborative memorynoun
A group produces a combined account by working together to recall information or events its members experienced.
collaborative primary carenoun
Health professionals work together to provide the general health services people usually approach first.
collaborative stepped carenoun
Community and primary care workers begin mental health support, with specialists providing further care when initial help is insufficient.
collaborative therapynoun
A therapist and client work as partners to examine difficulties, build shared understanding, and support change.
collagennoun
A strong structural protein helps support body tissues, including skin, bones, cartilage, and tendons.
collapsingnoun
Combining several answer choices or groups into fewer, broader categories for analysis.
collateraladjective
Secondary or indirect, rather than the main source or focus.
collateral behaviornoun
An action regularly occurs near a rewarded behavior in time, although earning the reward does not require it.
collateral hereditynoun
Relatives trace their descent through separate family branches that lead back to a shared ancestor.
collateral sulcusnoun
A groove underneath each brain hemisphere extends between regions of the occipital and temporal lobes.
collative propertiesnoun
Features such as novelty and complexity shape how interesting or stimulating a pattern or artwork feels.
collectivenoun
A group of people who act or think in a shared way, even without direct contact.
collective bargainingnoun
Employers and union representatives negotiate agreements about employees’ pay, benefits, schedules, and other working conditions.
collective behaviornoun
People in a group act together or similarly, sometimes behaving differently than they would on their own.
collective consciencenoun
A society’s shared beliefs, values, feelings, and expectations provide a common foundation for judging right and wrong.
collective consciousnessnoun
A disputed proposal suggests that people in crowds merge mentally into a single awareness that can override individual choices.
collective efficacynoun
People believe their group can combine its abilities and sustained effort to meet a challenge successfully.
collective effort model (CEM)noun
This theory explains reduced group effort through lower expectations of success and less personal value attached to shared goals.
collective experiencenoun
During group therapy, members develop shared emotional understanding by recognizing one another’s difficulties and offering empathy and support.
collective guiltnoun
People feel regret because a group they belong to has acted against moral or social standards.
collective hypnosisnoun
One practitioner guides several people through hypnosis during the same session.
collective hysterianoun
This historical label describes unusual feelings, beliefs, symptoms, or actions that arise spontaneously and spread within a group.
collective inductionnoun
People discuss evidence together to solve problems, especially by finding general rules that explain particular examples.
collective information-processing modelnoun
This theory explains group decisions as the result of members sharing and working through information in discussion.
collective memorynoun
People within a community develop shared recollections about earlier events through storytelling, celebrations, and other ways of remembering together.
collective mindnoun
A controversial theory proposes that a crowd develops one shared mind capable of directing its members beyond their individual wishes.
collective monologuenoun
Children speak in one another’s company, but their remarks seem disconnected rather than forming a meaningful exchange.
collective movementsnoun
Similar responses to an event spread over time among increasing numbers of people in different places.
collective psychologynoun
This field studies how people think and feel as members of crowds, audiences, and other large groups.
collective representationsnoun
Shared symbols, stories, customs, laws, and institutions express a society’s values and its understanding of its own identity.
collective selfnoun
The part of someone’s identity that comes from belonging to social groups helps shape how they understand themselves.
collective self-esteemnoun
People evaluate the part of their identity connected to group memberships, including their worth as members and their groups’ value.
collective suicidenoun
All or most people in an existing social group intentionally end their own lives in a shared event.
collective unconsciousnoun
According to Jung, a deepest shared unconscious layer holds inherited archetypes, or universal mental images, seen in dreams and myths.
collectivismnoun
Seeing yourself mainly as part of a group, with the group's goals valued over personal independence.
college admission testsnoun
Schools use these assessments to help judge applicants’ academic knowledge, skills, and readiness for college or graduate study.
College Entrance Examination Board Advanced Placement Programnoun
This program lets high school students demonstrate advanced subject knowledge through examinations that may earn college credit or higher placement.
College Level Examination Program (CLEP)noun
This examination program allows learners to demonstrate existing college-level knowledge and potentially earn credit at colleges that accept their results.
collegial modelnoun
A collaborative approach gives participants equal standing and encourages everyone’s involvement while reducing differences in status.
colliculusnoun
A small rounded brain structure belongs to paired midbrain regions that process visual or sound information.
collinearitynoun
Two predictors in a regression analysis are so closely related that separating their individual contributions becomes difficult.
colloidnoun
A mixture contains tiny particles or large molecules spread throughout another substance without fully dissolving into it.
collusionnoun
A therapist knowingly or unknowingly joins a client or another person in avoiding an issue that therapy needs to address.
collusional marriagenoun
This label describes a marriage where one spouse secretly supports or conceals the other’s problematic conduct while appearing merely burdened.
colobomanoun
A gap in an eye structure is usually present because that tissue did not fully close during prenatal development.
colocalizationnoun
Different chemicals or measured brain activities occupy overlapping locations, such as multiple neurotransmitters within one nerve ending.
colonial speciesnoun
A bird species has multiple breeding groups that nest close to others of their own kind.
colonialismnoun
A country establishes control over another territory and its people, often through settlement and economic exploitation.
colonynoun
A relatively large gathering of animals belonging to one species lives together, with or without an organized social structure.
colornoun
A seen quality of light, shaped by wavelength and the eye, experienced as hue, brightness, and saturation.
color adaptationnoun
The visual system becomes less sensitive to a color when exposure to that color continues over time.
color agnosianoun
A person has difficulty recognizing or understanding colors even when basic visual abilities do not fully explain the problem.
color amnesianoun
A person cannot remember objects’ usual colors despite being able to see and distinguish colors.
color anomianoun
A person cannot name a visible color but can match it and select it when someone provides its name.
color attributenoun
A basic feature used to describe color may concern its hue, purity, or light intensity.
color balancenoun
The relative amounts of different colors in a composition are arranged to create a pleasing combination.
color blindnessphrase
A vision problem where someone cannot tell some colors apart, usually because cone cells work differently.
color cellsnoun
Three kinds of cone cells in the human retina respond most strongly to different wavelength ranges, supporting color vision.
color circlenoun
A circular color diagram arranges hues in spectrum order, includes purples, and places complementary pairs across from each other.
color conenoun
A cone-shaped color model places light intensity vertically, hue around its axis, and saturation outward from its center.
color constancynoun
An object tends to appear similar in color even when changes in lighting alter the light reaching the eyes.
color contrastnoun
A color can look different because of colors seen beside it or just before it.
color harmonynoun
Certain combinations of colors feel more pleasing together than others to the person viewing them.
color hearingnoun
Some people experience colors when hearing sounds, a form of synesthesia called chromatic audition.
color inductionnoun
Stimulation of a nearby visual area changes the color experienced in another area.
color mixernoun
A device directs two light wavelengths onto one retinal area together or in quick alternation.
color mixturenoun
Combining pigments, overlapping colored lights, or rapidly alternating colors can produce a blended color appearance.
color perceptionphrase
Seeing and noticing hue, the quality that makes colors look different from one another.
color puritynoun
A color's purity describes how little white, gray, or black is mixed into it.
color pyramidnoun
A pyramid-shaped model arranges colors in three dimensions by hue, brightness, and saturation.
color saturationnoun
The strength of a color's hue determines how vivid or washed out it appears.
color scotomanoun
A patch within someone's field of vision has reduced or missing color sensitivity.
color sensationnoun
The immediate experience of color arises when colored light stimulates the visual system.
color solidnoun
A model organizes colors in three dimensions according to hue, brightness, and saturation.
color subtractionnoun
Pigments absorb certain wavelengths from incoming light, leaving other wavelengths to reflect and shape the color seen.
color surfacenoun
A flat slice through a three-dimensional color model shows hues and saturations sharing one brightness level.
color systemnoun
An organized method classifies colors using their hue, saturation, and brightness.
color temperaturenoun
A light's color is described using the kelvin temperature of an ideal heated object producing matching light.
color theorynoun
An explanation proposes how color experiences arise and why particular color effects occur.
color trianglenoun
A triangular chart represents relationships among color hue, brightness, and saturation on a flat surface.
color valuenoun
The lightness of a color describes where it falls between dark and light.
color visionphrase
Seeing differences in light wavelengths lets people tell one color from another.
color wheelnoun
A disk with differently colored sections spins so researchers can study how the colors visually blend.
color zonesnoun
Different regions of the retina or visual field differ in their sensitivity to colors.
color-blindness testnoun
A task checks how well someone distinguishes colors to identify differences or difficulties in color vision.
Colored Progressive Matricesnoun
This Raven assessment uses 36 picture puzzles with colored backgrounds to assess reasoning, especially among children and older people.
colorimeternoun
An instrument measures or matches colors by comparing them with known light mixtures.
colostrumnoun
The earliest milk produced around childbirth supplies nutrients and antibodies that help protect a newborn from infection.
columnnoun
A vertical group of items or numbers in a table, spreadsheet, or list.
columnar organizationnoun
Some neurons in the brain's outer layer form connected vertical groups that extend across several layers.
comanoun
A deep unconscious state where a person cannot be awakened or respond to the world.
coma stimulationphrase
Using sights, sounds, touch, and other senses to try to raise awareness in a coma, though benefit is unproven.
coma therapynoun
A historical schizophrenia treatment used insulin to lower blood sugar enough to cause repeated temporary comas.
coma vigilnoun
An outdated, imprecise label describes apparent wakefulness without observable signs of awareness or purposeful responses.
combat and operational stress control (COSC)noun
Military programs prevent, recognize, and manage stress reactions to support service members' health and ability to perform duties.
combat stress reaction (CSR)noun
Psychological responses to traumatic military experiences can vary from mild distress to severe disruption.
combat stress reductionnoun
Training and support build coping skills to prevent or lessen stress reactions associated with combat.
combinationnoun
A way of choosing items from a group when the order of the chosen items does not matter.
combination antibiotic therapynoun
Treatment uses two or more antibiotics together to address a bacterial infection.
combination antiretroviral therapy (cART)noun
Treatment combines medicines that limit HIV multiplication, helping preserve immune function and reduce illness.
combination lawnoun
This principle proposes that nearby stimuli can combine responses, and a trigger for either response may bring out both.
combination testnoun
An assessment measures how someone puts separate pieces, such as objects or words, together into something more complicated.
combination therapyphrase
Using two or more different treatments by one therapist for the same problem.
combination tonenoun
An extra tone can arise within the ear when two tones of different frequencies sound together.
combinatorial operationnoun
A mental process joins smaller parts according to rules to create a new structured idea or expression.
combined therapyphrase
Using counseling together with medication can treat a person more effectively than either alone.
coming outnoun
Recognizing and accepting one's LGBTQ+ identity can include choosing to share it with other people over time.
command stylenoun
A teaching approach gives the teacher control over lesson decisions while students follow instructions and complete assigned tasks.
commensalismnoun
An ecological relationship gives one species an advantage while having no beneficial or harmful effect on the other.
commissural fibernoun
A nerve cell's long extension connects corresponding brain structures across the left and right hemispheres.
commissurenoun
A bundle of nerve fibers linking matching areas on the left and right sides of the brain.
commissurotomynoun
Surgery cuts a nerve-fiber bridge, often between brain hemispheres, to limit the spread of otherwise difficult-to-control seizures.
commitmentnoun
A strong sense of dedication and loyalty to a person, group, goal, or job.
commitment lawsnoun
Legal rules govern when and how someone may be hospitalized for mental health care without their consent.
commodity theorynoun
A theory proposes that limited availability can increase the perceived value of something people already want.
common cause hypothesisnoun
A proposed explanation attributes aging-related changes in both sensory and thinking abilities to shared declines in brain function.
common chemical sensenoun
Chemicals can create sensations such as cooling, warmth, or tingling through receptors other than those for taste and smell.
common consciencenoun
Shared beliefs, values, and feelings help members of a society judge right and wrong and guide their actions.
common factorphrase
A helpful part shared by many therapies, such as trust with the therapist, that improves treatment.
common fatenoun
People tend to see things moving or changing together as belonging to one group.
common knowledge effectnoun
Information already known by more group members tends to carry greater weight in group discussion and decisions.
common lawnoun
Legal principles develop through earlier court rulings that guide decisions in later cases.
common metricnoun
A shared measurement scale lets researchers meaningfully compare results gathered from different sources.
common regionnoun
People tend to see objects enclosed by the same boundary as belonging together.
common sensephrase
Widely shared practical judgment that seems obviously reasonable to most people.
common traitnoun
In Allport’s theory, a lasting personality characteristic shared and similarly expressed by many people allows comparisons between them.
common-law marriagenoun
Some legal systems recognize a couple as married without a formal ceremony when specific requirements are met.
commonality analysisnoun
A statistical method divides explained outcome differences into contributions unique to individual predictors and contributions shared among predictors.
commons dilemmanoun
People face a conflict when taking more from a shared resource benefits them individually but threatens everyone's future access.
commonsense justicenoun
Everyday beliefs about fair treatment guide judgments that may differ from formal legal rules.
commonsense psychologynoun
Everyday experience supplies beliefs about thoughts, feelings, and behavior that may lack scientific support.
communal nursingnoun
A nursing mammal feeds another mother's young with milk produced by her own body.
communal relationshipnoun
People in this relationship respond mainly to each other's needs rather than keeping track of equal repayment.
communalitynoun
In factor analysis, the share of a test item's differences explained by the factors it shares with others.
communenoun
People or families live together in a community that shares resources, daily responsibilities, and sometimes childcare.
communicable diseasenoun
An infectious illness can spread between individuals through direct contact or indirect routes.
communicated authenticity, regard, empathy (CARE)phrase
Some therapy theories consider a therapist's expressed honesty, respect, and understanding of clients' feelings essential for successful treatment.
communicating hydrocephalusnoun
Fluid builds up in brain cavities despite open connecting passages, usually because the body does not absorb it adequately.
communicationnoun
Sending and receiving information through words, signals, or behavior helps people and animals share ideas and feelings.
communication analysisnoun
Looking closely at how people speak and write to find patterns, problems, and ways to improve understanding.
communication apprehensionnoun
A person feels anxious about beginning or continuing communication with other people.
communication channelsphrase
The routes or methods people use to send information, such as talking, writing, email, or formal reports.
communication deviance (CD)noun
Unclear or hard-to-follow communication makes it difficult for speakers and listeners to maintain shared attention and understanding.
communication disorderphrase
A group of conditions causing trouble understanding, using, or producing speech and language.
communication engineeringnoun
Engineers apply scientific knowledge to design and develop technical systems that carry information between locations.
communication ergonomicsnoun
This specialty studies how tools, systems, and procedures help or hinder people exchanging information during shared work.
communication networknoun
The pattern of message exchanges within a group shows who communicates with whom and how often.
communication overloadnoun
Incoming information exceeds what a person or computer system can process or use effectively.
communication skillsphrase
The ability to understand others and share ideas clearly in speaking, writing, reading, and listening.
communication skills trainingphrase
A treatment that teaches clear speaking, active listening, and helpful feedback to improve relationships and solve conflicts.
communication systemnoun
An organized way parts of the body send and receive messages, especially through neurons, which are nerve cells.
communication theorynoun
Studies how information is sent, received, and understood through signals, language, and other messages.
communicative actnoun
A spoken or unspoken action conveys information to someone else, whether intentionally or accidentally.
communicative competencenoun
A person knows how language works and can use it suitably with different people in different situations.
communicologynoun
This field combines studying and improving communication with knowledge about hearing, speech, language difficulties, and expressing experiences and feelings.
communitasnoun
A social group experiences strong togetherness and common purpose, often supported by rituals or traditions.
communitynoun
A group of people in one place or with shared ties who feel connected and work within common systems.
community action groupnoun
Residents organize together to campaign for changes that address particular problems in their local area.
community carephrase
Support and treatment provided in everyday community settings for people with disabilities or mental health needs.
community competencenoun
An organized community can achieve and manage shared results, or its members believe it has that ability.
community controlnoun
Researchers select a comparison group from the study group's local area to help match relevant background conditions.
community correctionnoun
Courts impose consequences other than conventional imprisonment, aiming to reduce repeat offenses and support participation in society.
community ergonomicsnoun
This approach applies human-centered design to connect disadvantaged communities with resources and address the accumulated effects of social hardship.
community inclusionnoun
Communities welcome people with disabilities and encourage their full participation across education, work, relationships, and everyday activities.
community integrationnoun
People with disabilities receive support to participate in everyday community life and build connections with people without disabilities.
community mental healthphrase
Providing prevention, education, and treatment services within a local area instead of mainly in institutions.
community mental health center (CMHC)phrase
A local center that offers prevention, treatment, and recovery services for mental health problems.
Community Notification Actnoun
Known as Megan's law, this legislation required public access to information about registered people convicted of sexual offenses.
community prevention and interventionnoun
Residents, professionals, and local groups organize programs to prevent community problems and respond when problems occur.
community psychologynoun
This branch studies how people and community systems influence each other, applying findings to improve well-being and prevent problems.
community residencenoun
A staffed neighborhood home offers daily assistance and practical learning, often supporting residents who have developmental or intellectual disabilities.
community servicesphrase
Local programs and facilities that support health, mental health, daily living, and well-being outside hospitals.
community social workernoun
A professional connects residents with government officials and advocates for improvements addressing local needs and barriers.
community speech and hearing centernoun
A clinic staffed by specialists assesses and treats difficulties involving speech, language, hearing, and communication.
community-based participatory researchphrase
A research method where community members help plan, do, and use a study on local problems.
community-centered approachnoun
Local organizations coordinate prevention and treatment efforts around the needs of people in the community they serve.
comorbiditynoun
Having two or more disorders at the same time in one person.
companionate grandparentnoun
A grandparent maintains an affectionate, close bond with grandchildren without regularly taking responsibility for their daily care.
companionate lovenoun
A loving bond centers on emotional closeness and steady affection, with less emphasis on intense passion.
companionate marriagenoun
Spouses build their marriage around affection, trust, and companionship, usually sharing equal standing and flexible responsibilities.
comparable formnoun
A different version of a test uses similar content and measurement properties to assess the same abilities or characteristics.
comparable worthphrase
The idea that jobs needing similar skill, effort, and responsibility should receive similar pay, regardless of gender.
comparable-forms reliabilitynoun
Researchers estimate test consistency by measuring how closely people's scores agree across different, carefully matched versions.
comparative analysisnoun
Researchers compare behavior across species, cultures, or age groups to understand patterns of similarity and difference.
comparative cognitionnoun
Researchers examine thinking, learning, and other mental processes across species to understand their similarities, differences, origins, and workings.
comparative effectiveness research (CER)noun
Studies compare existing healthcare approaches to learn their benefits, drawbacks, and effectiveness for different people under different conditions.
comparative judgmentnoun
A person evaluates a sensory stimulus against another stimulus or a standard, such as deciding which sound seems louder.
comparative linguisticsnoun
Researchers compare languages to uncover their historical connections through patterns of resemblance and difference.
comparative methodnoun
A research approach examines behavioral similarities and differences across species, cultural groups, or ages to better understand a phenomenon.
comparative neuropsychologynoun
Researchers compare how brains and nervous systems relate to behavior across species, especially following brain damage.
comparative psychologynoun
A branch of psychology studies other animals' behavior to understand those animals and gain insights into human behavior.
comparative risknoun
An estimate compares someone's chance of an outcome with other groups, taking relevant personal or group characteristics into account.
comparative trialnoun
A study compares people receiving a treatment with people receiving another treatment or none to evaluate its effects.
comparatornoun
An information-processing unit checks a value against another value or target and may trigger adjustments when they differ.
comparator hypothesisnoun
A conditioning theory proposes that responding requires a learned cue to predict an automatic-response trigger better than the cue's absence does.
comparisonnoun
Looking at two or more groups to find meaningful differences, often by comparing their average scores.
comparison groupphrase
A set of people whose scores are used as the standard for judging one person's test results.
comparison level (CL)noun
In interdependence theory, past relationships shape the expected balance of benefits and costs used to judge a current relationship.
comparison level for alternatives (CLalt)noun
In interdependence theory, expected benefits and costs of other relationships or being alone provide a standard for deciding whether to stay.
comparison processnoun
People assess their own abilities, qualities, or performance by considering how they measure up against selected others.
comparison stimulus (Co)noun
In sensory testing, a presented sound, light, or other input is judged against a reference input.
comparison-wise error ratenoun
The probability of a false positive applies to one particular statistical comparison within a study containing multiple comparisons.
compartmentalizationnoun
In psychoanalytic theory, a psychological defense keeps conflicting thoughts or feelings mentally separate, reducing awareness of their clash.
compassionnoun
Caring concern for someone who is suffering, along with wanting to comfort or help them.
compassion fatiguenoun
Caregivers may develop exhaustion and stress symptoms through prolonged work supporting people who have experienced trauma.
Compassionate Friendsnoun
A voluntary support organization connects families grieving a child's death with others who offer understanding, companionship, and shared support.
compassionate lovenoun
A caring form of love centers on easing others' suffering and helping them thrive.
compatibilitynoun
A good fit where people's traits, attitudes, or goals match or balance each other well.
Compazinenoun
A brand name identifies prochlorperazine, a medicine used for nausea and vomiting that also has psychiatric uses.
compensable job factorsnoun
Job features such as required skills, effort, responsibility, and workplace conditions are used to decide pay.
compensationnoun
Making up for a weakness by building strength or using another ability instead.
compensation effectnoun
Group performance improves when some members increase their effort to make up for teammates' actual or assumed shortcomings.
compensatory damagesnoun
A court orders this payment to cover someone's losses or suffering caused by another party's wrongful conduct.
compensatory educationnoun
Special educational programs help children facing social or economic disadvantages develop thinking skills and social abilities.
compensatory eye movementsnoun
The eyes move against head motion to help keep the viewed scene or target steady.
compensatory mechanismnoun
A thinking process uses available strengths or strategies to work around a weaker or lost mental skill.
compensatory nystagmusnoun
Rhythmic eye movements return after the second inner-ear balance organ loses function, following recovery from the first organ's loss.
compensatory reflexnoun
An automatic response works against another response, partly or fully offsetting its effects.
compensatory self-enhancementnoun
After disappointing feedback, someone highlights unrelated personal strengths to defend their sense of worth or others' opinion of them.
compensatory taskphrase
A group job solved best by averaging members' answers, often beating one person's guess.
compensatory trackingnoun
A person adjusts a control to counter an indicator's movement and keep it inside a target region on a display.
competencenoun
Having the skills and ability to handle tasks or problems effectively and shape what happens.
competence motivationnoun
An inner drive pushes people to build skills, handle challenges effectively, and gain a sense of mastery.
competency evaluationphrase
A psychologist checks whether a defendant can understand court and help with their defense.
competency to stand trialphrase
Having enough present understanding to grasp court proceedings, work with a lawyer, and make choices during a criminal case.
competency-based instructionnoun
Students progress toward individual learning goals at their own speed, with teacher guidance and monitoring in a setting without competition.
competent reservoirnoun
An organism can host a particular disease-causing agent and efficiently contribute to its spread.
competing response trainingphrase
A behavior therapy method teaches noticing habit warnings and doing an incompatible action instead of the habit.
competitionnoun
A setup where you can succeed only by doing better than other people or groups.
competition by resource defensenoun
Animals limit others' access to resources by defending the space containing them, rather than competing directly over each resource.
competition for resourcesphrase
When people or animals need the same limited things, they must compete to get enough.
competition routinenoun
A planned sequence of actions, inner speech, and mental pictures is used during competition to support performance.
competition tolerancenoun
A person accepts situations requiring competition and responds constructively when competing with others.
competitive bargainingnoun
People negotiate over limited resources, seeking a larger share for themselves that leaves less for the other side.
competitive goal structurenoun
A situation makes reaching one's goals depend on surpassing others or keeping them from reaching theirs.
competitive goalsnoun
These aims require individuals or groups to surpass rivals seeking the same outcome.
competitive motivenoun
A drive leads someone to seek better personal outcomes while holding back others' progress in social or performance situations.
competitive reward structurenoun
Rewards depend on individual performance, with one person's success reducing what other members can receive.
Competitive State Anxiety Inventory (CSAI)noun
This questionnaire assesses competitors' current worries, bodily signs of anxiety, and confidence shortly before their event begins.
competitivenessnoun
A personal tendency to enter contests and judge how well you did against similar others or clear goals.
complementnoun
A word or phrase completes a sentence's meaning by adding information required by another part.
complementaritynoun
In a pair relationship, each person's different traits fit together and help create balance.
complementary and alternative medicine (CAM)noun
Health approaches outside conventional medicine are called complementary when added to usual treatment and alternative when used instead.
complementary classnoun
Within a specified overall set, this group contains every item excluded from a chosen category.
complementary classificationnoun
Items from different categories are grouped together because experience connects them within a shared setting or theme.
complementary colorsnoun
These color pairs sit directly across from each other in a circular arrangement of hues.
complementary distributionnoun
Variants of one speech sound occur in separate sound environments, so each appears where the others do not.
complementary identificationnoun
In psychoanalytic theory, a therapist identifies with someone important to the client and experiences feelings associated with that person's role.
complete block designnoun
Researchers group similar participants into blocks, then assign conditions so every condition occurs once within each block.
complete counterbalancingnoun
A study uses every possible ordering of its conditions to help account for effects caused by their sequence.
complete factorial designnoun
A study includes all combinations of the levels of two or more factors being investigated.
complete-case analysisnoun
Researchers analyze only records containing values for every variable needed, excluding records with any required information missing.
completion testnoun
A test asks someone to fill missing parts of text, numbers, symbols, or pictures.
complexnoun
A linked set of hidden feelings and ideas that strongly shape a person's behavior.
complex behaviorphrase
An activity with many actions and choices done quickly in sequence or at the same time.
complex cellnoun
A visual cortex neuron responds to suitable edges or bars across its receptive area, often favoring a particular movement direction.
complex comparisonnoun
A statistical comparison combines results from at least two groups and compares that combination with results from other groups.
complex emotionnoun
An emotional experience combines several more basic feelings into a richer whole.
Complex Figure Testnoun
A drawing assessment compares copying a detailed design with recreating it from memory to examine visual skills and remembering.
complex ideasnoun
In historical associationism, abstract understandings were proposed to develop through combining and comparing basic sensory ideas.
complex motivesnoun
Several desires operate at once, supporting the same goal or pulling a person toward conflicting goals.
complex of ideasnoun
A linked cluster of thoughts, feelings, and memories allows recalling one part to bring other parts to mind.
complex partial seizurephrase
A seizure affecting part of the brain that causes altered awareness, repeated movements, and unusual feelings or sensations.
complex reaction timenoun
The measured interval runs from a signal appearing to making the response selected from several possible responses.
complex regional pain syndromenoun
A lasting pain condition, usually affecting a limb, causes pain beyond expected injury effects, with sensory, movement, or skin changes.
complex schedule of reinforcementnoun
A learning arrangement combines simpler rules governing when a behavior receives reinforcement.
complex sentencephrase
A sentence with one main idea part and at least one dependent part that cannot stand alone.
complex tonenoun
A sound contains multiple frequency components rather than a single frequency.
complex traumaphrase
Long-lasting harm from repeated, often early, upsetting experiences, especially abuse or neglect in close relationships.
complexity factornoun
In studying responses to art, this dimension describes how numerous and varied a work's elements are.
complexity hypothesisnoun
One hypothesis links consciousness to changing neuron groups within the thalamus and cortex that coordinate while carrying distinct information.
complexity of an attitudenoun
An attitude's complexity depends on how many distinct kinds of relevant information support a person's evaluation.
complexity theorynoun
Studies how many connected parts can create orderly patterns even when exact outcomes are hard to predict.
compliancenoun
Changing your behavior because someone directly asks you to do something.
compliant characternoun
In Horney's historical theory, this personality pattern seeks affection through yielding to others as protection against deep insecurity.
complicated griefphrase
Long-lasting, unusually severe grief after a loss that keeps daily life from recovering.
complicationnoun
An extra illness or problem develops during another disorder or while a medical procedure is being done.
complication experimentnoun
A study presents simultaneous events while directing attention toward one to investigate differences in their perceived timing.
component evaluationnoun
An evaluation examines individual parts of a program and how those parts connect with its results.
component instinctnoun
In historical psychoanalysis, a proposed part of sexual drive has its own bodily source and particular goal.
componential analysisnoun
An analysis separates task performance into basic mental processes to study their roles, timing, organization, and errors.
componential subtheorynoun
Within Sternberg's intelligence theory, this account distinguishes mental processes for directing tasks, carrying them out, and acquiring needed knowledge.
components of an attitudenoun
Feelings, beliefs, and information about past actions or future intentions provide different foundations for an evaluation.
compos mentisadjective
This legal description means mentally capable of understanding a transaction and taking responsibility for one's actions.
composite figurenoun
In psychoanalytic accounts of dreams, one person or object combines characteristics drawn from several people or objects.
composite hypothesisnoun
A statistical claim allows multiple possible population distributions by leaving at least one relevant value unspecified or variable.
composite reliabilitynoun
A measure estimates the consistency of a combined score formed from several items or ratings.
composition of movementnoun
The organization and timing of nerve and muscle activity work together to produce a movement.
compoundnoun
A whole made by combining two or more parts that work together as one unit.
compound action potentialnoun
An electrical recording combines nerve impulses from multiple fibers activated together within a nerve.
compound bilingualnoun
A person regularly uses two languages learned through roughly equal exposure to both during the same period.
compound eyenoun
An eye found in insects and certain other animals contains many small visual units, each gathering light.
compound probabilitynoun
The chance of multiple independent events occurring together or in sequence is calculated by multiplying their individual probabilities.
compound reaction timenoun
The elapsed time includes recognizing a presented signal, selecting its matching response, and making that response.
compound reflexnoun
Several automatic bodily responses are triggered together as a group.
compound schedule of reinforcementnoun
A learning procedure applies several reinforcement rules to one response, alternating them, sequencing them, or using them together.
compound sentencenoun
A sentence joins multiple clauses that could each stand alone, often using connecting words such as and or but.
compound stimulusnoun
Several simpler signals are presented together as one combined stimulus.
comprehensionnoun
Understanding the meaning of words, messages, or ideas.
comprehension testnoun
A measure that asks what someone would do in a real-life situation to judge practical understanding and judgment.
comprehensive functional assessmentnoun
A broad evaluation examines someone's strengths, preferences, everyday skills, disabilities, and support needs, often drawing on several professional perspectives.
comprehensive mental health centernoun
A local facility or network offers a wide range of mental health services, including prevention, treatment, and recovery support.
compressed speechnoun
Recorded speech is processed to play faster while keeping the spoken message understandable.
compressionnoun
Physical squeezing of nervous tissue can interfere with movement, feeling, memory, or awareness, depending on its location.
compression of morbiditynoun
A hypothesis proposes that delaying chronic illness can reduce the portion of life spent with illness or disability before death.
compromise formationnoun
In psychoanalytic theory, a hidden wish appears in altered form, partly expressing the wish while satisfying psychological defenses.
compulsionnoun
A repeated action or mental ritual done to ease anxiety, often linked to an obsession.
compulsion to repeatnoun
Psychoanalytic theory proposes an unconscious pull to recreate earlier traumatic patterns in an effort to gain mastery over them.
compulsive characternoun
A personality pattern emphasizes inflexible perfectionism, strong duty, and excessive concern with details and order.
compulsive disorderphrase
A mental disorder marked by repeated acts a person feels driven to do, despite harm or unwanted urges.
compulsive drinkernoun
A person experiences a powerful urge to drink alcohol that feels difficult or impossible to control.
compulsive eatingnoun
A recurring, difficult-to-control drive leads someone to eat excessively, sometimes in response to emotions or learned patterns.
compulsive exercisernoun
A person feels compelled to do moderate or intense exercise regularly, often every day.
compulsive gamblingphrase
A repeated urge to gamble that becomes hard to control and causes serious problems in life.
compulsive laughternoun
Persistent laughter does not fit the situation and appears difficult to control, sometimes without the person's awareness.
compulsive orderlinessnoun
An overwhelming need for exact arrangements or cleanliness causes intense anxiety when things differ from the expected order.
compulsive perseverationnoun
A person keeps repeating a response or following a strategy beyond its usefulness and struggles to stop or switch.
compulsive personalityphrase
A rigid, perfectionistic personality style marked by overcontrol, orderliness, and strong need to follow rules.
compulsive personality disorderphrase
A long-term pattern of extreme perfectionism, control, and rule-following that harms flexibility and relationships.
compulsive repetitionnoun
A person feels driven to repeat unnecessary actions, often to reduce distress or uncertainty.
compulsive stealingnoun
Repeated theft of unneeded items follows urges that feel difficult to resist, with tension beforehand and relief or pleasure during stealing.
compulsivenessnoun
A tendency toward driven, repetitive, or rigid behavior can occur in obsessive-compulsive conditions.
compunctionnoun
A person feels guilt or uneasiness about something wrong they have done or are considering doing.
computational epistemologynoun
This field explores knowledge and meaning through computer models, feedback systems, and connections between a system and its surroundings.
computational formulanoun
An equation gives the mathematical steps needed to work out a statistical value.
computational linguisticsnoun
Researchers use computing methods to model language, test ideas about language processing, and build tools for handling speech or text.
computational metaphornoun
This comparison presents thinking as the manipulation of symbols, similar to how a computer processes information.
computational modelnoun
An explanation proposes that mental processes work through ordered operations on internal representations, much as digital computers do.
computed tomography (CT)phrase
A scan that uses many X-rays and a computer to make detailed cross-section pictures of body tissues.
computer adaptive testing (CAT)noun
A computerized test adjusts question difficulty using earlier answers and stops when its ability estimate reaches a chosen precision.
computer addictionnoun
A debated label describes difficult-to-control computer use that causes distress or interferes with everyday responsibilities and relationships.
computer anxietynoun
Someone experiences strong worry or fear about computers or using them that exceeds the situation's actual danger.
computer literacynoun
A person understands basic computer functions and can use computers and networks effectively for everyday tasks.
computer modelnoun
A computer-based representation imitates a real system or process so researchers can examine and change its parts.
computer networknoun
Several computers connect through wired or wireless links so they can exchange information and share resources.
computer of averaged transientsnoun
An instrument averages repeated electrical brain responses to events, making their shared pattern clearer against unrelated background activity.
computer phobianoun
Intense fear about computers or their use is greater than the actual danger involved.
computer programmingnoun
People write instructions in a computer language to tell a machine how to carry out tasks.
computer simulationnoun
Researchers run a programmed version of a mental process to explore predictions from a theory of thinking.
computer slanguagenoun
People use informal expressions and specialized vocabulary when communicating about computers or interacting online.
computer-assisted diagnosisnoun
Software organizes and compares patient information with stored clinical knowledge to help professionals identify possible disorders.
computer-assisted instruction (CAI)noun
Computer programs teach through exercises, explanations, games, or simulations that can be adjusted to individual learners.
computer-assisted psychotherapynoun
Specially designed computer programs deliver therapeutic activities under the supervision of a trained therapist.
computer-assisted testingnoun
A computer helps deliver or support an assessment of abilities, knowledge, or other characteristics.
computer-managed instructionnoun
Software analyzes student progress to help teachers choose individual lessons, without students working directly with the software.
computerized assessmentnoun
A computer collects someone's answers or task results and compares them with existing records to help evaluate psychological functioning.
computerized diagnosisnoun
Computer programs help identify disorders by comparing a patient's information with databases of symptoms, earlier cases, and clinical knowledge.
computerized therapynoun
A trained therapist oversees treatment activities provided through a computer program designed for therapy.
Comrey Personality Scales (CPS)noun
A questionnaire for people aged 16 and older measures eight personality dimensions using ratings of 180 statements.
COMTabbreviation
The abbreviation names catechol-O-methyltransferase, an enzyme that helps deactivate chemical messengers such as dopamine.
COMT genenoun
This gene provides instructions for making catechol-O-methyltransferase, an enzyme involved in deactivating dopamine and related chemical messengers.
Comte’s paradoxnoun
This philosophical puzzle asks how the mind can study itself objectively while serving as both investigator and subject.
CONabbreviation
A required government approval before a health care service can open, grow, or add major equipment.
conariumnoun
In Descartes's historical theory, the pineal gland served as the meeting point where the mind and body could influence each other.
conationnoun
The active side of motivation turns thoughts, feelings, and desires into purposeful effort and action.
conativeadjective
An action or mental process involves willing, striving, or starting activity toward a goal.
concaveationnoun
Repeated contact with young animals brings out maternal care in an unmated female without hormonal changes from pregnancy or nursing.
Concealed Figures Testnoun
A visual assessment asks someone to find which of four complicated drawings contains a given simple shape.
concealed measurenoun
Researchers record information without interrupting people or making them aware that they are being measured.
concentrationnoun
Mental effort aimed steadily at one thing while ignoring distractions.
concentration-camp syndromenoun
A historical label describes lasting trauma symptoms among concentration camp survivors, including anxiety, depression, repeated troubling thoughts, and survivor guilt.
concentrative meditationnoun
A meditation practice directs attention toward one chosen focus, such as a sound, image, or thought.
conceptnoun
A mental category that groups things, events, or qualities that share important features.
concept acquisitionnoun
Through examples, a person learns the shared features that help identify a category of things, actions, or relationships.
concept formationnoun
People develop general ideas by identifying features that connect particular examples and distinguish a category.
concept hierarchynoun
Related categories are arranged in levels, with broad groups above increasingly specific groups.
concept learningnoun
A person learns which features connect examples so they can recognize members of a general category.
concept-discovery tasknoun
An activity asks someone to work out the hidden rule separating examples that belong to a category from those that do not.
concept-formation testnoun
An assessment examines how someone develops general categories and how well they have learned those categories.
concept-identification tasknoun
Participants examine examples and nonexamples to discover the rule deciding whether something belongs in a category.
conception rationoun
In population studies, this compares the number of males conceived with the number of females conceived.
conceptual apraxianoun
A person has major difficulty using tools because their knowledge of the tools' purposes or appropriate actions is impaired.
conceptual classificationnoun
Items are sorted according to a shared purpose or category, such as grouping several kinds of vehicles together.
conceptual complexitynoun
An idea becomes harder to understand as it includes more abstract concepts and more complicated connections among them.
conceptual dependencynoun
A structured network represents sentence meanings for computers through linked actions, objects, and details describing them.
conceptual disordernoun
A disturbance affects thinking or the ability to develop abstract ideas from broader concepts.
conceptual disorganizationnoun
Speech becomes hard to follow because ideas wander, connect unclearly, or include unusual invented words, suggesting disorganized thinking.
conceptual formulanoun
A precise statement in words explains what a statistical concept means, rather than giving steps for calculating it.
conceptual imagerynoun
Mental images represent ideas or show how ideas connect with one another.
conceptual modelnoun
A visual map showing how ideas are related to each other or to their features.
conceptual nervous systemnoun
A hypothetical model represents how the nervous system works and helps researchers explore possible explanations of behavior.
conceptual replicationnoun
Researchers test the same underlying idea using different methods to explore whether earlier findings support a broader theory.
conceptual systemnoun
An organized framework of thinking abilities, emotional awareness, experiences, and beliefs helps someone make sense of the world.
conceptual temponoun
A person's usual approach to mental tasks ranges from responding quickly to carefully considering options before answering.
conceptual testnoun
A memory task draws on the meaning of information and can assess memory with or without conscious remembering.
conceptualizationnoun
Making general ideas from experiences or learned information, especially when the ideas are abstract, or not concrete.
conceptually driven processingnoun
Existing knowledge and expectations guide how someone interprets incoming information.
conceptually guided controlnoun
Broad ideas and organized knowledge direct thinking toward goals that have already been established.
Concertanoun
This brand of methylphenidate is a stimulant medicine used to help manage attention and impulsivity in ADHD.
conciliationnoun
People or groups work toward agreement when their interests or goals conflict, sometimes with help from a neutral person.
concinnitynoun
An artistic design has harmony when its individual parts fit well together and support the overall arrangement.
conclusionnoun
A claim or general rule supported by evidence at the end of an argument or study.
concomitancenoun
Different events or features occur together, sometimes understood as expressions of a shared underlying reality.
concomitant variablenoun
A factor varies with the measured outcome and may be included in analysis to account for its influence.
concordancenoun
In twin research, both twins show the same trait, symptom pattern, or disorder.
concordance ratephrase
Shows how often both relatives in a pair have the same trait or disorder.
concordant identificationnoun
In psychoanalysis, a therapist's emotional response involves identifying with the client's perspective and sharing an understanding of their experience.
concrete attitudenoun
A thinking style emphasizes specific objects and immediate experiences, with limited attention to abstract ideas or general categories.
concrete imagenoun
A remembered mental image contains particular sensory details, such as a certain flavor, sound, or texture.
concrete intelligencenoun
A person can understand physical objects and skillfully handle or change them.
concrete operationnoun
In Piaget's theory, a child mentally works with real objects and understands logical relationships, including how parts fit into wholes.
concrete operational stagephrase
From about ages 7 to 12, children think logically about real things and less from only their own view.
concrete picturephrase
A mental image of a real thing or event, with little or no abstract thinking.
concrete thinkingphrase
Focusing on what is directly seen or happening now rather than ideas, patterns, or possibilities.
concrete wordnoun
A word names something physically existing that can be perceived through the senses.
concreteness effectnoun
People tend to remember words naming physical things more easily than words naming abstract ideas.
concretismnoun
Jung proposed a pattern of thinking or feeling tied closely to immediate sensations, with little ability to consider abstract meanings.
concretizationnoun
Thinking becomes restricted to specific details and immediate experience, making abstract ideas difficult to understand.
concurrence seekingnoun
Group members strive to maintain agreement by avoiding disagreement or debate, especially while making decisions.
concurrent medical auditnoun
A systematic review checks diagnostic and treatment practices while a patient is still receiving care.
concurrent operantsnoun
Multiple actions that affect the environment are available together and can be performed either together or in alternation.
concurrent reviewphrase
Checking during treatment whether a psychiatric admission was necessary and should continue.
concurrent schedules of reinforcementnoun
Different available actions each have their own reinforcement rules operating simultaneously, allowing a person or animal to choose among them.
concurrent therapynoun
Two treatments take place during the same period, or different family members receive therapy during overlapping periods.
concurrent validityphrase
Shows whether a test matches a related measure taken at about the same time.
concurrent-chains procedurenoun
An initial choice leads to one reinforcement schedule, which must be completed for a primary reward before choosing again.
concussionnoun
A mild brain injury from a hit or sudden movement that briefly disrupts thinking, memory, or behavior.
condensationnoun
Several ideas, feelings, or meanings merge into a single mental image or symbol, especially in descriptions of dreams.
conditionnoun
A person's medical or mental health problem, such as a disorder or illness.
conditional clausenoun
A dependent part of a sentence states a possible condition, often beginning with words such as if or unless.
conditional dischargenoun
A patient leaves a psychiatric facility subject to requirements, such as attending follow-up appointments or following a medication plan.
conditional discriminationnoun
Learning which response earns reinforcement depends on another cue that changes what counts as the correct choice.
conditional positive regardnoun
Someone offers acceptance and appreciation only when another person's behavior meets their standards.
conditional probabilityphrase
The chance of one event happening when you already know another event happened.
conditional reasoningnoun
A person draws conclusions using statements that say what follows if a particular condition holds.
conditional strategynoun
An organism adjusts its behavioral approach to suit current circumstances, changing strategies when those circumstances change.
conditionedadjective
Learned through experience, especially when behavior changes because events or consequences are linked.
conditioned aversionnoun
A learned dislike or urge to avoid something develops after it becomes associated with an unpleasant experience.
conditioned avoidance response (CAR)noun
A learned action prevents or delays an unpleasant event, or makes it less frequent or intense.
conditioned emotional response (CER)noun
A previously neutral cue starts triggering a negative emotion, often fear or anxiety, through learned associations.
conditioned escape responsenoun
A learned action ends an unpleasant stimulus that is already happening.
conditioned inhibitionphrase
A learned cue that signals the expected event will not happen, weakening the usual conditioned response.
conditioned place preference (CPP)noun
A person or animal develops a preference for a location because it has become associated with rewarding experiences.
conditioned reflexnoun
A cue produces a learned reaction after being associated with something that already triggers a response.
conditioned reinforcementnoun
A consequence strengthens behavior because earlier associations with other rewards have given it reinforcing value.
conditioned reinforcernoun
A learned reward gains power by being linked with something that already feels satisfying, like food or comfort.
conditioned response (CR)phrase
A learned reaction triggered by a previously neutral cue after it has been paired with something meaningful.
conditioned stimulus (CS)phrase
A previously neutral cue, after repeated pairing with something automatic, starts to trigger a learned response by itself.
conditioned stimulus preexposure effectnoun
Prior experience with a cue alone slows later learning that the cue predicts another stimulus.
conditioned stimulus–unconditioned stimulus interval (CS–US interval)noun
The measured time separates presentation of a cue used in conditioning from presentation of a stimulus that naturally triggers a response.
conditioned suppressionnoun
An ongoing reinforced behavior decreases when a cue associated with an unpleasant event appears.
conditioned taste aversionphrase
After a food makes someone sick, they may quickly and strongly avoid that taste for a long time.
conditioningnoun
Learning through experience that makes behaviors more or less likely to happen again.
conditioning apparatusnoun
Equipment used in animal learning experiments presents events and allows researchers to study how responses develop or change.
conditioning of attitudesnoun
Likes, dislikes, or judgments develop or change through associations with pleasant or unpleasant experiences and through behavioral consequences.
conditioning therapynoun
A psychological treatment uses learning principles to change unhelpful behaviors and reduce symptoms, including changing the consequences that maintain behavior.
conditions of worthphrase
Feeling lovable only when you act in ways that earn other people's approval and praise.
condomnoun
A thin covering worn over the penis during sex helps prevent pregnancy and reduces transmission of many sexually transmitted infections.
conduct disorder (CD)phrase
A lasting pattern of serious rule-breaking and aggression that violates others' rights and goes beyond typical childhood defiance.
conductionnoun
The carrying of electrical activity through a nerve, muscle, or similar body tissue.
conduction aphasiaphrase
A language problem where understanding stays fairly good, but repeating spoken words is hard and speech has sound mistakes.
conduction deafnessnoun
Hearing is reduced when problems in the outer or middle ear prevent sound from reaching the inner ear effectively.
conduction time (CT)noun
The travel duration of a signal, such as a nerve impulse, is measured between two locations.
conduction velocitynoun
The speed of a nerve impulse describes how quickly it travels along a nerve cell's signal-carrying extension.
conductivitynoun
A material or tissue has this property when it allows energy or signals to pass through it.
conenoun
A retinal cell that works best in bright light and helps you see color and fine detail.
cone opsinnoun
A light-sensitive protein in retinal cone cells that helps you see color.
confabulationnoun
Memory gaps get filled with made-up details that the person truly believes are real.
confederatenoun
A secret helper in a study pretends to be a participant and follows a planned script.
conference methodnoun
Employees learn by discussing workplace problems together, sharing ideas, and evaluating possible solutions.
confidence interval (CI)phrase
A sample-based range that likely contains the true population value at a chosen level of certainty.
confidence levelphrase
Shows how often a confidence interval from many samples would include the true population value.
confidence limitnoun
Either endpoint of a confidence interval marks a boundary of the estimated range for a population characteristic.
confidentialitynoun
A duty to keep a client's private information from being shared without permission or a legal reason.
configural displaynoun
A visual display combines several measurements into one meaningful shape whose changes indicate a system's condition.
configural learningnoun
An individual learns to respond to a combination of cues as a distinct pattern, beyond responses to separate cues.
configural superiority effectnoun
People sometimes identify visual features more easily when those features form an organized pattern than when shown separately.
configural-cue approachnoun
An experimental approach proposes that combined cues guide responses through their overall pattern rather than through separate parts.
configurationnoun
The way parts are arranged to make an overall pattern or whole form.
configurational analysisnoun
A psychodynamic model guides assessment and therapy by examining difficult mental states alongside defenses, identity, relationships, and personal concerns.
confinement studynoun
Researchers examine how limited living space, time spent there, and group size affect people's bodies, minds, and performance.
confirmable propositionnoun
A statement qualifies when an experiment could provide evidence supporting it or showing it to be false.
confirmationnoun
Getting the expected result strengthens the behavior that produced it.
confirmation biasphrase
People notice and trust information that fits what they already believe, while overlooking evidence against it.
confirmatory data analysisnoun
Researchers use planned statistical tests to evaluate specific questions or predictions established before examining the relevant results.
confirmatory factor analysis (CFA)noun
A statistical method tests whether observed measurements fit a proposed pattern of underlying traits that cannot be measured directly.
confirmatory researchnoun
A study tests specific predictions developed before the evidence used to evaluate them is examined.
conflictnoun
A clash between opposing wants, beliefs, actions, or feelings within a person or between people.
conflict behaviornoun
Actions arise when competing motives are active together, sometimes producing hesitation, switching directions, or an unrelated activity.
conflict of interestphrase
Personal goals or benefits clash with professional duties, making fair and unbiased decisions harder.
conflict resolutionphrase
Reducing disagreement between people or groups by actively finding workable solutions through discussion and compromise.
conflict spiralnoun
Disagreement intensifies as each side answers the other's actions with increasingly negative or extreme reactions.
conflict theoryphrase
A view that fights between people or groups grow naturally when power or resources are shared unequally.
conflict-free spherenoun
In ego psychology, a proposed part of mental functioning develops and operates independently of inner conflict.
confluencenoun
A coming together of separate parts, such as motives or perceptions, into one combined whole.
confluence modelnoun
A disputed theory proposes that family size and birth order shape children's intelligence through the family's changing intellectual environment.
conformitynoun
Changing your behavior or beliefs to match other people or group rules.
confoundnoun
A hidden extra variable mixed with the one studied, making it hard to know what caused the results.
confounded comparisonnoun
Groups differ in multiple relevant ways at once, preventing researchers from separating which difference explains their outcomes.
confounded effectsnoun
The influences of multiple factors on an outcome cannot be separated using the available study design or data.
confounding variablephrase
An outside factor that changes with the independent variable and muddies what caused the results.
confrontationnoun
A therapist's direct challenge that helps someone face mismatches between what they say, feel, and do.
confrontation namingnoun
A person is shown an object or picture and asked to say its name.
confrontational methodnoun
A behavior-change approach pressures people to admit perceived shortcomings, although research has not supported its effectiveness and resistance may increase.
confusability indexnoun
A numerical measure estimates how easily users might misunderstand a symbol, display element, or other object.
confusionnoun
A disturbed state with unclear thinking, poor decisions, and trouble knowing the time, place, or who people are.
confusion effectnoun
Unpredictable movements or calls among grouped animals make it harder for a predator to single out one individual.
confusion matrixnoun
A table compares predicted categories with actual categories, showing both correct classifications and the kinds of mistakes made.
confusion of responsibilitynoun
Bystanders may avoid helping because they fear others will wrongly blame them for causing the problem.
confusional arousalnoun
A person partly wakes from nonrapid-eye-movement sleep, seems awake but remains confused or unresponsive, and usually remembers little afterward.
confusional psychosisnoun
A historical psychiatric category describes recurring confusion with rapidly shifting emotions, sometimes alternating anxiety with silence and reduced movement.
confusional statephrase
A person stays awake but becomes disoriented and unable to think clearly or speak coherently.
congenernoun
A fermentation byproduct in alcoholic drinks can affect their taste, smell, color, and possibly the severity of hangovers.
congenitaladjective
Present at birth, whether caused by genes, development, or events before delivery.
congenital adrenal hyperplasia (CAH)noun
Inherited conditions disrupt adrenal hormone production, usually reducing cortisol and often increasing androgens, with effects on growth and sexual development.
congenital anomalynoun
A difference in body structure or function exists when a baby is born, though it may be discovered later.
congenital cataractnoun
Clouding of an eye's lens exists at birth or develops shortly afterward and can interfere with the development of vision.
congenital characternoun
A trait exists when someone is born because of inherited factors or influences during pregnancy or delivery.
congenital color blindnessnoun
An usually inherited difference in color vision exists from birth and makes certain colors difficult or impossible to distinguish.
congenital deafnessnoun
Little or no hearing is present when a person is born, whatever its cause.
congenital defectnoun
A medical condition involving body structure or function exists from birth, even when it becomes noticeable only later.
congenital glaucomanoun
An early developmental eye condition causes excessive internal fluid pressure that can damage the optic nerve and reduce vision.
congenital hypothyroidismnoun
Too little thyroid hormone is available from birth, potentially affecting brain development and growth if the condition remains untreated.
congenital oculomotor apraxianoun
An early developmental condition makes starting purposeful eye movements difficult, especially sideways, so children may turn their heads to shift gaze.
congenital rubella syndromenoun
Rubella infection during pregnancy can cause a pattern of conditions affecting a baby's hearing, eyes, heart, and development.
congenital sensory neuropathy with anhidrosisnoun
A condition present from birth prevents pain sensation and sweating, making injuries and overheating harder to detect or manage.
congenital trichomegalynoun
A rare syndrome combines unusually long eyelashes and eyebrows with short stature, retinal deterioration, and developmental difficulties.
congenital visual agnosianoun
An early brain development difference makes recognizing objects or faces by sight difficult despite adequate basic vision and general abilities.
congenital visual impairmentnoun
Reduced or absent vision exists at birth or develops shortly afterward, shaping how a child accesses visual information.
congruencenoun
Match between a person's real feelings, self-view, and outward behavior.
congruent validitynoun
Evidence supports a test's intended meaning when its scores relate strongly to scores from other measures of similar qualities.
congruity theorynoun
A theory predicts that people adjust attitudes toward a message and its source when those evaluations conflict, depending on their strength.
CONJabbreviation
This abbreviation means conjunctive reinforcement, where a reward requires completing at least two reinforcement schedules, in any order.
conjoined twinsnoun
Identical twins sometimes develop with their bodies physically connected, and the exact cause remains uncertain.
conjoint analysisnoun
Researchers study choices between options with different combinations of features to estimate how much each feature matters.
conjoint behavioral consultationnoun
A school psychologist guides parents and teachers in jointly planning and evaluating support for a student's behavior and learning.
conjoint schedulenoun
Several reinforcement rules operate at the same time for one behavior.
conjoint therapyphrase
A counseling approach where partners or family members meet together to work on relationship problems.
conjugate movementsnoun
Both eyes move together in a coordinated way as their direction of gaze changes.
conjugate reinforcementnoun
A feature of reinforcement changes predictably with a feature of behavior, such as its speed or strength.
conjunctionnoun
In probability, joining two events with "and" always makes them no more likely than either event alone.
conjunctival reflexnoun
An eyelid closes automatically when the membrane covering the eye's white surface is stimulated.
conjunctive conceptnoun
A category applies only when every required feature is present together.
conjunctive motivationnoun
In Sullivan's theory, people can seek genuine, enduring satisfaction instead of brief relief or substitutes.
conjunctive reinforcement (CONJ)noun
Reinforcement becomes available only after every requirement of multiple schedules is met, regardless of completion order.
conjunctive taskphrase
A group job succeeds only when everyone finishes, so the weakest member sets the pace and quality.
Conn’s syndromenoun
The adrenal glands produce excessive aldosterone because of a problem within those glands, often raising blood pressure.
connateadjective
A condition described this way already exists when a baby is born.
connected discoursenoun
Several linked sentences form a meaningful whole, such as a conversation, story, or argument.
connectionismnoun
An approach explains thinking through many simple processing units working together in networks.
connectionist modelnoun
A theory represents knowledge across connections among simple processing units, with activity spreading through the network.
connector neuronnoun
A nerve cell links other nerve cells within the brain or spinal cord.
Conners’ Comprehensive Behavior Rating Scales (Conners CBRS)noun
These questionnaires gather parent, teacher, and youth reports about emotional, behavioral, and school difficulties in ages six through eighteen.
Conners’ Rating Scales (CRS)noun
These questionnaires help assess attention, activity level, impulse control, and related difficulties in children and teenagers.
connotative meaningnoun
A word carries suggested feelings and associations beyond its literal meaning, often shaped by culture.
CONOPSabbreviation
Continuous operations are military activities that proceed without stopping and can strain performance through sleep loss.
consanguineous familynoun
An extended family includes relatives such as grandparents, cousins, aunts, and uncles beyond parents and their children.
consanguinitynoun
People have a biological family relationship because they share an ancestor.
consciencenoun
An inner voice that judges your actions by learned moral rules and feelings about wrongdoing.
conscientious objectornoun
A person refuses military service because religious or moral convictions oppose participation in war.
conscientiousnessnoun
Being organized, responsible, and hardworking is one of the Big Five personality traits.
conscious (Cs)adjective
Aware of yourself, your thoughts, or what is happening around you.
conscious access hypothesisnoun
This proposal suggests that consciousness brings otherwise separate brain functions together so they can coordinate their work.
conscious automatismnoun
A historical view holds that physical processes generate conscious experiences, while those experiences cannot cause physical changes.
conscious intentionnoun
A person knowingly chooses a goal or purpose to guide an action.
conscious memorynoun
Stored facts and personal experiences can be brought deliberately into awareness.
conscious mentalismnoun
This theoretical view treats thoughts, feelings, and intentions accessible to awareness as real and as the main causes of behavior.
conscious momentnoun
A brief stretch of experience feels like the present, sometimes proposed to span roughly two to four seconds.
conscious processphrase
A mental action you notice happening and can usually guide on purpose.
conscious resistancenoun
In psychoanalysis, a client deliberately keeps newly noticed, previously unconscious material from the analyst, sometimes because sharing feels uncomfortable.
consciousnessnoun
Being awake and aware of yourself, your thoughts, and what is happening around you.
consciousness of freedomnoun
People feel able to choose their decisions and actions when no obvious force or pressure compels them.
consciousness raisingphrase
Guided discussion that helps people better notice their own needs, values, goals, or problems.
consciousness studiesnoun
Researchers across psychology, brain science, and philosophy investigate awareness, subjective experience, and how these relate to physical processes.
consciousness-altering substancenoun
A psychoactive substance changes how someone experiences awareness or perceives the world.
consensual driftnoun
Observers working together gradually develop similar scoring errors, so their agreement can hide growing inaccuracy.
consensual eye reflexnoun
The pupil in one eye automatically narrows when bright light enters the other eye.
consensual validationnoun
With a therapist's guidance, a person checks how accurately they understood an experience against how others understood it.
consensusnoun
Shared agreement among group members about a judgment, decision, or view of someone.
consentiencenoun
An older concept attributes a supposedly less developed form of consciousness to animals other than humans.
consequateverb
To arrange for a particular consequence to follow a behavior is to consequate that behavior.
consequentnoun
An event or condition follows from another; in an if–then statement, it is the claim introduced by then.
consequent variablenoun
A measured feature is associated with a study's main outcome and is predicted using that outcome.
conservationnoun
Understanding that an amount stays the same even when its shape or appearance changes.
conservation of resources theory (COR theory)noun
This theory proposes that people seek and protect valued resources, experiencing stress when those resources are lost or threatened.
conservation psychologynoun
Psychologists study how people think and act toward nature to encourage behavior that protects ecosystems and resources.
conservation withdrawalnoun
Stress can bring social withdrawal and reduced activity, interpreted as a response that saves energy and supports recovery.
conservatismnoun
An attitude favors established ways, traditions, or existing arrangements and may include hesitation about change.
conservativeadjective
Describes a statistical test that avoids false positives but may miss real effects because it has low power.
conservatorshipnoun
A court appoints someone to manage specified affairs for a person whose condition limits their ability to manage them independently.
considerationnoun
Good leaders show warmth and care toward workers' feelings, which lowers conflict and builds trust.
consiliencenoun
Wilson proposed that knowledge about human life can be unified through basic principles of physics and biological evolution.
consistency checknoun
Researchers examine whether related answers, records, or calculations fit together to help detect possible mistakes.
consistency motivenoun
People seek confirmation of their existing beliefs about themselves, even when those beliefs are unfavorable.
consistency theorynoun
These theories propose that people are motivated to keep their beliefs, attitudes, and understandings compatible with one another.
consistent estimatornoun
A statistical rule produces estimates increasingly likely to be near the true population value as samples grow sufficiently large.
consistent mappingnoun
A search task keeps each item in one role throughout, either something to find or something to ignore.
consistent missingnoun
In experiments investigating claimed psychic abilities, guesses repeatedly fall below the success rate expected from chance.
consolidationnoun
The brain process that turns new learning into a more lasting memory over time.
consolidation hypothesisnoun
A proposed memory model holds that repeated brain activity first maintains fragile memories, which later become more resistant to disruption.
consolidation periodnoun
The time after learning when a new memory becomes more stable varies with the memory process involved.
consolidation theorynoun
One proposed explanation for spaced learning says recognizing a repeated item leads to creating an additional memory representation.
consonancenoun
Harmony occurs when a person's beliefs, feelings, or actions fit together, or when a message matches its intended meaning.
consonantnoun
A speech sound made when airflow is partly or fully blocked somewhere in the mouth or throat.
consonant trigramnoun
A sequence of three consonant letters, usually forming no word, provides material for studying verbal learning and memory.
Consonarnoun
This trade name identifies brofaromine, an antidepressant that reversibly blocks mainly the enzyme monoamine oxidase A.
conspecificadjective
An animal or other organism described this way shares its species with another organism being considered.
conspicuitynoun
An object's ability to catch attention makes it easier to notice among surrounding items.
conspicuous consumptionnoun
People buy and display costly goods to gain social standing or protect the standing they already have.
constancynoun
Seeing an object as staying the same size, shape, or color even when conditions change.
constancy lawnoun
A historical psychoanalytic proposal holds that mental activity moves toward equilibrium and a stillness associated with nonliving matter.
constancy of the IQnoun
A person's intelligence test scores tend to stay fairly similar across repeated testing, although development and circumstances can change them.
constancy principlenoun
A historical psychoanalytic idea proposes that mental energy tends to stay balanced or return to a lower, steadier level.
constancy scalingnoun
The mind adjusts perceived features, especially size, to account for viewing conditions and keep objects looking relatively unchanged.
constantnoun
A value that stays the same while other parts of a problem or study can change.
constant comparative analysisnoun
Researchers repeatedly compare and label descriptive information, adjusting categories and explanations as additional material reveals new patterns.
constant errornoun
Directional measurement bias is calculated by averaging errors while keeping the positive or negative sign of each error.
constant stimulus methodnoun
Researchers randomly repeat preset stimulus levels near a sensory boundary to estimate the level detected on half the trials.
constellationnoun
A cluster of related ideas linked by a shared theme or mental connection.
constipationnoun
Having bowel movements that are hard to pass or happen less often than usual.
constituentnoun
A word or group of words that acts as one part of a larger sentence.
constitutionnoun
A person's basic physical and psychological makeup includes inherited characteristics and, in broader usage, influences from experience and surroundings.
constitutional disordernoun
A condition or pattern of behavior is attributed to features of a person's bodily structure or functioning.
constitutional factornoun
A basic bodily characteristic or inherited tendency is thought to help shape personality, temperament, or vulnerability to certain disorders.
constitutional psychopathic inferiornoun
An outdated, stigmatizing label was historically applied to people whose difficulties were later associated with antisocial personality disorder.
constitutional typenoun
A category groups people by bodily features, sometimes using historical proposals that connect physique with personality or mental disorders.
constrained associationnoun
A task requires responses to a cue to follow a stated rule, such as supplying a word's opposite.
constraint commitmentnoun
A person stays in a relationship because leaving would bring outside costs, such as financial difficulties or lost social connections.
construalnoun
A person's interpretation gives meaning to their own characteristics and actions or those of other people.
constructnoun
An abstract idea in psychology, like intelligence, built from simpler observations and used to explain behavior.
construct validitynoun
Shows how well a test truly measures the trait or idea it is supposed to measure.
constructional apraxiaphrase
A person cannot accurately copy or build what they see, such as drawings, block designs, or puzzles.
constructional praxisphrase
Ability to copy, draw, or build designs by organizing shapes correctly in space.
constructionismnoun
People build their own understanding by fitting new experiences into what they already know.
constructive alternativismnoun
In George Kelly's personality theory, people can interpret their world through different possible frameworks rather than one fixed understanding.
constructive conflict resolutionnoun
People or groups settle disagreements through cooperative approaches, including negotiation, compromise, and adjustments that support a workable agreement.
constructive confrontationnoun
Employees openly examine workplace problems and plan improvements together in discussions designed to avoid blame or punishment.
constructive copingnoun
Helpful ways of managing stress use realistic understanding and suitable actions to address problems, emotions, or interpretations.
constructive memorynoun
Remembering combines stored details with general knowledge, which can fill gaps or change parts of an experience.
constructive obediencenoun
Following an authority's instructions produces benefits for the person obeying or for the wider community.
constructive playnoun
Children play by arranging and changing materials to make something, such as a model, structure, or other creation.
constructive theory of perceptionnoun
This approach proposes that perception forms as the mind unconsciously combines sensory input with expectations, context, and past experience.
constructive thinkingnoun
An ability to handle everyday problems effectively allows a person to solve them with relatively little stress.
Constructive Thinking Inventory (CTI)noun
A self-report questionnaire measures adults' experience-based thinking habits, including superstition, rigid categories, unrealistic optimism, and defensiveness.
constructivismnoun
People actively build understanding of the world using what they already know to interpret new experiences.
Constructivist Learning Environment Survey (CLES)noun
A student questionnaire assesses how much classroom learning supports actively building understanding, helping teachers reflect on their teaching assumptions.
constructivist psychotherapynoun
Therapy helps people examine and reshape the meanings they give experiences so they can understand and approach problems more helpfully.
constructivist theory of emotionnoun
This theoretical approach proposes that emotions develop through social interactions and cultural experience rather than arriving fully formed at birth.
consultantnoun
A trained expert hired to give professional advice or services about problems, treatment, or recovery.
consultation-liaison psychiatrynoun
A psychiatric specialty integrates mental health assessment and care into treatment for people receiving medical or surgical services.
consulteenoun
The person, often another professional, who gets advice from a consultant to help a client.
consultee-centered consultationnoun
A mental health specialist helps a caregiver or professional strengthen their skills and understanding for supporting people in their care.
consultingnoun
Giving expert advice to people or organizations to help solve problems or improve work.
consulting psychologynoun
Psychologists provide expert guidance to organizations and their members on issues such as assessment, teamwork, training, and organizational change.
consumernoun
A person, parent, or organization that gets and uses psychological or health services.
consumer activismnoun
People work to protect buyers' and service users' rights, including fair treatment, safety, quality, and informed choices.
consumer behaviorphrase
How people or groups choose, buy, use, and get rid of goods and services, and the decisions around it.
consumer characteristicsnoun
Buyers' personality traits and psychological motives help researchers understand purchasing choices and plan advertising.
consumer counselingnoun
Guidance helps individuals make thoughtful choices about managing their money and handling personal financial decisions.
consumer educationnoun
Programs teach people to evaluate products, services, and advertising, understand markets, and make informed purchasing decisions.
consumer innovatornoun
A buyer belongs to the earliest group to try a newly introduced product or service.
consumer neurosciencenoun
Researchers study brain activity and related bodily responses to understand people's product preferences, purchasing decisions, and reactions to advertising.
consumer psychologynoun
A field of psychology examines how people choose and use goods or services and how marketing influences those choices.
consumer researchnoun
Systematic studies investigate buyers' preferences, motives, and behavior, including how packaging, branding, and personal characteristics affect choices.
consumer surveynoun
A research method asks people about their product preferences to help guide decisions about what businesses offer.
consumer-driven health carenoun
A health financing approach gives people greater spending responsibility, often combining insurance with high deductibles and special health accounts.
consumer-jury techniquenoun
A research method asks typical buyers to judge proposed advertisements before a campaign begins.
consumer-run drop-in centernoun
A welcoming community space offers informal mental health recovery support and activities organized by the people who use it.
consumerismnoun
A pattern of buying and using products beyond basic needs can reflect a strong focus on possessions and spending.
consummatory pleasurenoun
Enjoyment occurs when a desire is satisfied, such as while eating food that someone wanted.
consummatory responsenoun
The final action in a natural behavior sequence achieves its goal, such as eating after searching for food.
consummatory response theory of reinforcementnoun
A proposed learning theory explains reinforcement through excitement produced by consuming a reward, rather than through reduced need.
contact behaviornoun
Actions exchanged between people during an interaction can include both close personal encounters and ordinary business dealings.
contact comfortphrase
The calming, healthy effect babies or young animals get from close touch with a soft caregiver.
contact desensitizationnoun
A therapist demonstrates gradually more challenging ways to face a fear, then supports the person in practicing each step.
contact hypothesisphrase
Friendly contact between different groups can lower prejudice, especially when they meet as equals without competing.
contact languagenoun
An improvised communication system develops when people without a shared language need to understand one another.
contagionnoun
The spread of emotions, ideas, or behavior from person to person through a group.
containmentnoun
In object relations theory, a caregiver or therapist helps someone make overwhelming feelings understandable and manageable.
contaminationnoun
Outside influences, such as expectations or prior knowledge, distort how data are gathered or judged.
contamination obsessionnoun
Repeated, unwanted thoughts or fears about contamination cause distress and can be difficult to dismiss.
contemporaneitynoun
A psychotherapy principle directs attention toward what the person is experiencing during the present moment.
contemptnoun
A feeling of looking down on someone as bad, beneath you, or worthless.
contentnoun
The thoughts, feelings, and mental pictures a person is aware of at a given moment.
content analysisphrase
A method for counting and coding themes or words in messages to study patterns objectively.
content psychologynoun
A historical approach, especially early structuralism, studied conscious experiences and the sensations, images, and feelings within them.
content validitynoun
How well a test covers the full range of skills or behaviors it is supposed to measure.
content wordnoun
A word carries a meaning about things, actions, qualities, or ideas beyond its role in sentence grammar.
content-addressable storenoun
A memory model proposes that information is stored and found through its features, such as meaning or timing.
content-referenced testnoun
An assessment judges someone's mastery of material against a specified standard rather than other people's performance.
content-thought disordernoun
A disturbance in what someone thinks involves several fragmented delusions, meaning beliefs held firmly despite strong contrary evidence.
Contention Scheduling System (CSS)noun
A proposed mental mechanism selects among learned routine actions when familiar cues activate competing habits.
contentiousnessnoun
A tendency to argue or become involved in disputes can shape how someone interacts with other people.
contents of consciousnessnoun
The particular sensations, thoughts, feelings, and images someone is aware of make up their experience at a given moment.
contentual objectivism versus contentual subjectivismphrase
A historical debate asks whether psychology should study observable behavior or people's private conscious experiences.
contextnoun
The surroundings and conditions around something that shape how it is noticed, remembered, or understood.
context cluesnoun
Nearby words and sentences provide hints that help a reader identify or understand an unfamiliar written word.
context reinstatementnoun
Recreating an event's surroundings, mentally or physically, supplies cues that may help someone remember the event.
context shiftingnoun
During conversation or therapy, someone abruptly changes topics, often to move away from an issue that causes anxiety.
context theory of meaningnoun
Titchener's historical theory proposed that words and concepts gain meaning through mental images linked with particular groups of sensations.
context-independent learningnoun
Someone learns a skill or strategy without tying it to one particular situation where it will be used.
context-specific learningnoun
Learning is demonstrated only under the setting, circumstances, or internal state in which it originally occurred.
contextual analysisnoun
Researchers evaluate information while considering how the setting where it was gathered influenced the people or behavior studied.
contextual associationnoun
A learned connection links information or an experience with its surrounding setting, which can later help bring it to mind.
contextual interference effectnoun
Mixing tasks or practice settings can slow initial learning while improving later memory and use in new situations.
contextual subtheorynoun
Within Sternberg's triarchic theory, intelligence involves effectively adjusting to, changing, and choosing environments, with success depending on the setting.
contextualismnoun
A theoretical viewpoint holds that surrounding circumstances help shape events and their meaning, including what people learn and remember.
contextualizeverb
To understand something by fitting it into a mental framework you already have.
contiguitynoun
The closeness of events in time or place helps the mind link them together.
contiguity learning theorynoun
Guthrie's historical theory proposed that a stimulus pattern becomes linked to a response when both occur together.
contiguity of associationnoun
A mental link forms between things because they are experienced near each other in time.
contiguity principlenoun
A learning principle proposes that events or ideas become connected through closeness in time or location.
continencenoun
The ability to regulate urination, bowel movements, or sexual urges allows a person to control their expression.
continental philosophynoun
This loose category groups philosophical movements rooted mainly in mainland Europe, including existentialism and phenomenology.
contingencies of self-worthnoun
Areas such as achievement or social approval become conditions on which a person's sense of personal value depends.
contingencynoun
A link where one event changes how likely another event is.
contingency awarenessnoun
Someone recognizes that events are connected or that the occurrence of one is related to another.
contingency contractnoun
People agree on specific behavior changes and spell out the consequences that will follow those behaviors.
contingency managementphrase
Giving rewards whenever a target behavior happens to increase it, especially in substance use treatment.
contingency modelnoun
The best leadership or management style depends on the situation, task, workplace, and people involved.
contingency tablephrase
A chart that shows how often two category variables go together in the same cases.
contingency theory of leadershipnoun
A family of theories proposes that leadership success depends on how a leader's characteristics fit the group's situation.
contingency-governed behaviornoun
Actions arise directly from experienced reinforcement relationships, without deliberate reasoning or reliance on verbal rules.
contingentadjective
Depending on a certain condition or event happening first.
contingent aftereffectnoun
Following visual exposure, a changed perception of one feature depends on another feature, such as color depending on line orientation.
contingent negative variation (CNV)noun
A slow negative electrical shift, measured at the scalp between warning and action signals, reflects anticipation or preparation.
contingent probabilitynoun
The chance that an event occurs is calculated given that another specified event has occurred.
contingent reinforcementphrase
Giving a reward, or sometimes removing something unpleasant, only after the wanted behavior happens.
continuance commitmentphrase
Staying with a workplace mainly because leaving would be costly, risky, or hard to manage.
continued-stay review (CSR)noun
A reviewer checks whether someone still needs inpatient treatment and whether the current facility provides an appropriate level of care.
continuing bondnoun
An emotional or symbolic connection with someone who has died remains part of a grieving person's ongoing life.
continuing care retirement community (CCRC)noun
A residential community offers older adults different housing and care options as their support needs change.
continuing care unit (CCU)noun
A hospital department provides ongoing care after the most urgent phase of a serious or long-lasting illness.
continuing educationphrase
Licensed professionals must keep learning to stay current and competent to practice safely.
continuing medical education (CME)noun
Doctors continue learning after their professional degree to strengthen the knowledge and skills they use in patient care.
continuitynoun
An ongoing, connected pattern over time, without major breaks or sudden jumps.
continuity hypothesisnoun
This proposal explains learning as gradual gains through practice and reinforcement, rather than sudden understanding.
continuity of carephrase
Ongoing, well-coordinated treatment that continues across providers or settings so a client is not left without help.
continuity of germ plasmnoun
Weismann's historical theory proposed that hereditary material continues across generations through reproductive cells, independently of changes acquired by other body cells.
continuity theorynoun
This theory proposes that people tend to preserve familiar personal qualities, interests, activities, and relationships as they grow older.
continuity versus discontinuityphrase
Researchers debate whether development happens through gradual changes or through relatively sudden shifts between distinct stages.
continuousadjective
Able to take any number value within a range, including decimals between whole numbers.
continuous avoidancenoun
In this learning procedure, each specified response delays a regularly scheduled unpleasant event, without a separate warning signal.
continuous controlnoun
A device lets a person adjust an output through ongoing movement across a range of positions.
continuous distractor tasknoun
During an ongoing item sequence, participants periodically recall what followed an earlier item while keeping the remaining sequence in memory.
continuous distributionnoun
A statistical pattern describes values that can fall anywhere within a range, including between any two measured points.
continuous groupnoun
A counseling or therapy group accepts additional members after its meetings have already begun.
continuous improvementphrase
Making work processes a little better all the time instead of waiting for one big fix.
continuous movement tasknoun
A purposeful physical activity keeps going without a built-in endpoint until someone chooses or needs to stop.
continuous operations (CONOPS)noun
Military activities run around the clock, requiring coordination and potentially reducing sleep and performance.
continuous panelnoun
A lasting group of selected consumers is surveyed repeatedly to track changes that may reflect a wider population.
continuous performance test (CPT)noun
An attention test asks someone to keep responding to selected signals while withholding responses to other signals.
continuous rating scalenoun
A rating tool allows answers at any position along a range instead of limiting them to separate categories.
continuous recognition tasknoun
A memory test presents items one after another and asks whether each has appeared earlier in that sequence.
continuous reinforcement (CRF)phrase
Giving a reward after every wanted behavior during operant conditioning, which means learning from consequences.
continuous spectrumnoun
A sound's frequency representation spreads energy across a continuous range rather than containing only separate frequency components.
continuous variablephrase
A measured quantity that can take any value within a range, including decimals between whole numbers.
continuum approachnoun
This view places behavior along a range from effective functioning to serious difficulty, treating differences as matters of degree.
continuum of carephrase
Coordinated support that changes over time, matching a person's changing needs across services and settings.
contra-prefix
This prefix adds the meaning of opposition or being against something to a word.
contraceptionnoun
Methods or devices are used to prevent pregnancy, often by keeping sperm from fertilizing an egg.
contractnoun
A written agreement between people that spells out duties, rewards, and what happens if rules are broken.
contract plannoun
A student signs an agreement to meet a behavior or learning goal, often with specified rewards or consequences.
contractilitynoun
Living tissue, especially muscle, has the ability to shorten or develop tension when stimulated.
contractionnoun
A tightening or shortening of muscle fibers that creates force or movement.
contracturenoun
A muscle becomes persistently shortened or tight, making stretching and normal movement difficult and sometimes causing lasting disability.
contradictory representationnoun
One mental image blocks an incompatible image of the same thing, potentially interrupting thoughts that depend on that image.
contralateraladjective
Describes a body part or effect occurring on the side across from another structure or injury.
contralateral controlphrase
Each brain hemisphere mainly directs movement on the body's other side.
contralateral deficitnoun
Brain damage causes reduced ability or function in the body on the side opposite the damaged brain area.
contralateral eyenoun
An eye is described by its position across the body's midline from a particular structure being discussed.
contralateral hemispherenoun
One half of the cerebrum lies across the body's midline from the body part being considered.
contraprepared learningnoun
Learning certain connections is proposed to be especially difficult because those connections run against a species' evolved biological tendencies.
contrastnoun
Seeing differences seem bigger because one thing is judged beside or after another.
contrast analysisnoun
A statistical method tests focused questions about differences among group averages or how closely results match a prediction.
contrast codingnoun
Researchers assign numerical weights that total zero to group categories, allowing statistical tests of particular comparisons.
contrast detectornoun
A nerve cell or proposed processing mechanism responds to visual differences, such as boundaries between brighter and darker areas.
contrast effectnoun
Comparing two things close together can make their differences seem bigger than they really are.
contrast errorphrase
A rating mistake where someone's score is pushed up or down by how others in the group perform.
contrast illusionnoun
An object's apparent size, brightness, color, or other visual feature changes because nearby objects differ in that feature.
contrast polaritynoun
The direction of a brightness difference indicates whether a visual object is lighter or darker than its background.
contrast sensitivitynoun
A person's visual ability determines how small a brightness difference can be before a pattern becomes undetectable.
contrast-sensitivity function (CSF)noun
A graph shows how the ability to detect brightness differences varies as a pattern's repeating elements become more closely spaced.
contrastive analysisnoun
Researchers compare how two languages are organized to understand differences and similarities that can guide language teaching.
contrastive rhetoricnoun
This theory proposes that languages and cultural writing traditions differ in how arguments and other texts are organized.
contravolitionaladjective
Something happens against a person's wishes or beyond their ability to control it.
contrecoupnoun
A brain injury occurs across the head from the place where an impact happened.
contributing causenoun
A factor helps produce an outcome but cannot bring about that outcome by itself.
controlnoun
The power to direct events, body functions, behavior, or what happens in a situation.
control adopteesnoun
These adopted children provide a research comparison because neither their birth nor adoptive parents show the condition under investigation.
control analysisnoun
A trainee conducts psychoanalytic treatment with an experienced analyst's guidance, including help understanding personal reactions to the patient.
control conditionphrase
The comparison group in a study gets no treatment or a fake one.
control devicenoun
An assistive system's mechanism sends a person's commands to equipment that changes something in their surroundings.
control discriminabilitynoun
A control's design determines how easily someone can distinguish it from others and identify what it will do.
control experimentnoun
A follow-up study checks whether an earlier result came from the proposed cause rather than another factor.
control function logicnoun
A control produces an effect that matches what users reasonably expect from the way they operate it.
control groupphrase
In a study, the comparison group gets no new treatment or a standard one for judging effects.
control of action modelnoun
This model proposes that automatic selection handles familiar actions, while supervisory attention guides choices when situations require deliberate control.
control ordernoun
The relationship between a control and its output determines whether an adjustment changes position, speed, or another movement property.
control procedurephrase
A study step used before research to keep groups equal on outside factors that could affect results.
control processesnoun
Mental operations manage how information moves through thinking, coordinating activities such as attention, remembering, and making decisions.
control question test (CQT)noun
A polygraph method compares bodily reactions to investigation questions with reactions to questions about troubling past behavior.
control theorynoun
People guide their actions by checking results against a goal and adjusting until the mismatch shrinks.
control variablephrase
A factor that could affect results but is kept steady or adjusted for so it does not confuse findings.
control-mastery theorynoun
A therapy theory proposes that people test unconscious childhood beliefs about safety and relationships to overcome barriers to healthier lives.
control–display rationoun
An ergonomic measure divides how far someone moves a control by how far its displayed target moves.
controllable turnovernoun
Employee departures through resignation or dismissal are counted as potentially controllable within a workplace turnover classification.
controlled associationnoun
A task asks someone to respond to a prompt according to a rule, such as supplying an opposite word.
controlled attentionnoun
Attention focuses on selected information while other available information is set aside.
controlled drinkingnoun
A harm reduction approach aims to limit alcohol consumption for people with relatively mild drinking problems.
controlled observationnoun
Researchers watch and record behavior using planned procedures and consistent conditions.
Controlled Oral Word Association Test (COWAT)noun
A verbal fluency test asks people to produce words beginning with assigned letters to assess executive and language abilities.
controlled processingphrase
Using attention on purpose, with effort, to think through information carefully.
controlled samplingnoun
Researchers select study cases using procedures that reduce inclusion of characteristics considered unsuitable for the study.
Controlled Substances Act (CSA)noun
A 1970 U.S. federal law regulates certain substances according to concerns about misuse, dependence, safety, and medical use.
controlled trialphrase
People with the same problem are put into treatment and comparison groups to test whether a new help works.
controlled-exposure techniquenoun
An advertising research method presents advertisements to a small audience under arranged conditions and measures reactions.
controlling goalnoun
An objective, usually chosen by someone else, must be met before an outside reward becomes available.
controversial childnoun
A peer-rating category describes a child receiving unusually many positive and negative nominations, with roughly average overall preference.
contusionnoun
A bruise develops when an impact damages small blood vessels and blood collects within tissue.
convalescent centernoun
A care facility provides ongoing nursing and rehabilitation for people needing less intensive treatment than an acute hospital offers.
convenience samplingphrase
Choosing participants because they are easy to reach, which often creates bias and weakens generalization to others.
conventional antipsychoticnoun
An older class of medicines treats psychosis, including symptoms such as hallucinations and severely disorganized thinking.
conventional levelphrase
At this moral stage, people judge right and wrong by social rules, approval, and obeying authority.
conventionalismnoun
A personality tendency involves rigidly following established customs and strongly insisting on accepted social rules.
convergencenoun
Both eyes turn inward to focus the same object on each retina, helping depth and single vision.
convergence theorynoun
A theory proposes that collective action forms when people who already share interests, values, or traits gather together.
convergent evolutionnoun
Distantly related species independently develop similar features because they face similar environmental demands.
convergent productionnoun
Guilford's intelligence model proposes an ability to generate a correct answer or select the most suitable solution.
convergent strabismusnoun
An eye alignment condition causes one eye or both eyes to point inward, potentially disrupting coordinated vision.
convergent thinkingnoun
A thinking process uses orderly reasoning to narrow possible solutions down to the correct or most promising choice.
convergent validityphrase
Shows up when a test gives similar scores to other tests measuring the same idea.
conversationnoun
People taking turns speaking to share ideas, information, or feelings and understand each other well enough.
conversation analysisnoun
Researchers examine how spoken exchanges are organized, including how speakers take turns and build shared understanding.
conversational inferencenoun
Listeners use context and cultural expectations to work out meanings that speakers leave unstated.
conversational maximsnoun
Grice proposed four expectations for conversation: truthfulness, enough information, relevance, and clear expression.
conversational repairnoun
A speaker or listener adjusts an ongoing conversation to correct a mistake or clear up misunderstanding.
converse accidentnoun
A reasoning error treats an unusual case or limited evidence as enough support for a broad rule.
conversionnoun
Unconsciously turning mental conflict into real physical symptoms, like blindness or paralysis, without a medical cause.
conversion anesthesianoun
A functional neurological symptom involves genuine loss of bodily sensation that does not fit recognized neurological disease patterns.
conversion disorderphrase
Someone has movement or sense problems that seem neurological but do not match known nerve disease patterns.
conversion hysterianoun
A historical name described conversion disorder, involving genuine movement or sensory symptoms that conflict with recognized neurological disease patterns.
conversion nonepileptic seizurenoun
An involuntary seizure-like episode occurs within diagnosed conversion disorder without being caused by the electrical activity responsible for epilepsy.
conversion paralysisnoun
A functional neurological symptom prevents voluntary movement in a body part, with findings inconsistent with recognized neurological disease patterns.
conversion seizurenoun
A seizure-like event associated with diagnosed conversion disorder occurs involuntarily and is not driven by epileptic electrical activity.
conversion symptomnoun
A genuine difficulty with movement or sensation shows clinical features that conflict with recognized neurological disease patterns.
conversion therapyphrase
A discredited, harmful practice that tries to change a person's LGBTQ+ identity or expression.
convictionnoun
A strong feeling that a belief matters deeply and is part of who you are.
convolutionnoun
A fold or twist in a structure often describes the folded surface of the brain.
convolutional neural networknoun
An artificial learning network slides filters across data to detect features and combine them into recognizable patterns.
convoy model of social relationsnoun
A theory maps a person's changing relationships across life into three surrounding circles representing different degrees of closeness.
convulsantnoun
A substance can trigger convulsions, often by weakening the nervous system's signals that normally limit activity.
convulsionnoun
Muscles contract forcefully without voluntary control, producing sustained stiffness or repeated cycles of tightening and release.
convulsive disordernoun
A form of epilepsy involves repeated seizures that include involuntary, forceful muscle contractions.
convulsive therapynoun
A treatment deliberately produces a generalized seizure using electricity or chemicals to address a mental disorder.
cooingnoun
Soft vowel-like sounds babies make when they feel calm, pleased, and comfortable.
Cook’s distance (Cook’s D)noun
A regression statistic measures how strongly one observation affects the fitted model by comparing results with and without it.
cookiesnoun
Small files saved by websites help track what a user does online and remember preferences.
Coolidge Assessment Battery (CAB)noun
A 225-item self-report questionnaire assesses personality disorders, several other mental health conditions, and executive abilities using an older diagnostic framework.
Coolidge effectnoun
Sexual interest or activity can increase when a human or other animal encounters a new mating partner.
Cooper–Harper Handling Qualities Rating Scalenoun
A rating tool guides pilots through decisions about aircraft handling, task performance, and the effort needed to compensate for difficulties.
cooperating teachernoun
An experienced classroom teacher supervises and guides a trainee as they practice teaching students.
cooperationnoun
Working together with others helps people reach a shared goal or goals that fit together.
cooperative breedingnoun
A reproductive system involves group members helping raise offspring, often while only a main pair reproduces.
cooperative educationnoun
A school-organized program combines academic learning with employment that provides practical experience, ideally related to the student's field.
cooperative goal structurenoun
A task is arranged so people reach their aims more easily through shared success and working together.
cooperative learningphrase
Students learn in small groups where everyone helps, works face to face, and reviews how the group is doing.
cooperative motivenoun
A personal drive encourages working with others and helping them accomplish their aims.
cooperative playphrase
Children play together in an organized way, sharing ideas, rules, and often a common goal.
cooperative reward structurenoun
A system gives rewards according to shared group achievement, so members benefit from helping one another succeed.
cooperative trainingnoun
A school program combines students' chosen career placements with classroom teaching and coordinated monitoring of their workplace progress.
cooperativenessnoun
In Cloninger's personality model, a character dimension describes how accepting, helpful, and considerate someone tends to be toward others.
cooperativitynoun
Binding at one site on a receptor or enzyme changes how readily molecules bind at its other sites.
coordinate bilingualnoun
A person uses two languages learned separately in different settings, with their mental representations thought to remain relatively independent.
coordinationnoun
The ability of body parts or muscles to work together smoothly during movement or action.
coordination lossnoun
A group produces less than it could because members' efforts do not fit together effectively.
coordination of secondary circular reactionsphrase
During infancy, combining familiar actions to reach a goal, such as moving a pillow to grab a toy.
coordinative structurenoun
Several forces or components work together toward one goal, such as muscles combining to move an arm.
coparentingnoun
Parents manage their shared role in raising a child, sometimes supporting each other and sometimes working at cross purposes.
COPDabbreviation
Chronic obstructive pulmonary disease involves lasting airflow restriction that makes breathing difficult and can affect emotional and cognitive functioning.
Copernican theorynoun
The astronomical model places the Sun centrally, with Earth and the other planets traveling around it.
copicidenoun
A person seeking to die deliberately provokes a police response intended to cause their own death.
copingnoun
Using thoughts and actions to handle stress when life feels harder than your resources can manage.
coping behaviornoun
An action used to handle stress or perceived danger may be habitual and can help or worsen the situation.
coping imagerynoun
A therapy technique pairs relaxation with mental pictures previously helpful in managing anxiety during feared situations.
coping mechanismphrase
A way, conscious or automatic, of handling stress to lower tension and anxiety.
coping potentialnoun
A person's judgment of how successfully they could handle demands depends on the resources they believe are available.
coping strategyphrase
A conscious action or way of thinking used to handle stress or change your reaction to it.
coping stylephrase
A person's usual way of handling stress, fear, or difficult situations.
coping-skills trainingphrase
Teaching practical ways to handle stressful situations by improving thoughts, actions, and emotional control.
copro- (copr-; kopro-; kopr-)prefix
This word part adds a meaning involving feces, filth, or obscene language to a larger word.
coprolagnia (koprolagnia)noun
A sexual interest involves experiencing arousal from seeing feces or imagining them.
coprolalianoun
Uncontrollable blurting of obscene words, often seen in Tourette's disorder and some brain-based conditions.
coprophagianoun
A behavior involves consuming feces, whether one's own or those of another organism.
coprophemia (koprophemia)noun
A person uses obscene language to bring about sexual arousal.
coprophilianoun
An intense interest centers on feces or related objects and words, sometimes involving sexual attraction.
coprophrasianoun
Unwanted obscene or profane speech occurs involuntarily and can accompany certain neurological conditions.
copulanoun
A linking verb connects a sentence's subject with words that identify or describe it.
copulationnoun
Sexual intercourse involves physical mating, typically including genital insertion, with details varying across species.
copulatory locknoun
In some animal species, a physical connection temporarily holds mating partners together and can limit mating with others.
cordocentesisnoun
A prenatal procedure uses a needle through the pregnant person's abdomen to collect umbilical cord blood for testing.
core areanoun
An animal or group's most heavily used part of its usual range often contains important food or shelter.
core conflictual relationship theme (CCRT)noun
A psychodynamic method examines recurring relationship stories through a person's wishes, others' responses, and the person's reactions.
core emotionnoun
An emotion such as joy or fear is proposed to belong to a basic set recognized across cultures.
core gender identitynoun
In psychoanalytic theory, an early sense of one's gender is proposed to become established around the second year.
core hoursphrase
The set part of a workday when everyone must be at work, even with flexible schedules.
core knowledgephrase
Built-in mental systems help babies understand objects, numbers, places, and people before much learning occurs.
core relational themesnoun
In appraisal theory, judgments about what events mean for one's goals, self, and coping possibilities help shape particular emotions.
core temperaturenoun
The temperature deep inside the body reflects the warmth of its internal organs.
coreometernoun
An instrument measures pupil diameter, supporting studies of how the eye responds to different stimuli.
CORFingabbreviation
Cutting off reflected failure means distancing yourself from an unsuccessful group to protect how you feel about yourself.
Coricidinnoun
A brand of cold medicines includes some products containing dextromethorphan, a cough suppressant with effects relevant to psychology.
Corino de Andrade’s paramyloidosisnoun
An inherited amyloid disease involves abnormal protein deposits that damage nerves, causing weakness, sensory changes, and other bodily problems.
corneanoun
The clear front covering of the eye admits light and supplies much of the focusing power needed for vision.
corneal reflection techniquenoun
Researchers track eye movements by recording changes in light reflected from the eye's clear front surface.
corneal reflexnoun
The eyelids close automatically when contact with the cornea triggers a protective nerve response.
Cornelia de Lange syndromenoun
A rare genetic condition affects development, with varying combinations of growth differences, physical features, learning difficulties, and behavioral challenges.
Cornell Medical Index (CMI)noun
An older health questionnaire gathers information about physical symptoms and emotional difficulties to help identify concerns needing assessment.
cornu ammonisnoun
The horn-shaped hippocampal region contains areas labeled CA and helps support learning and memory for facts and events.
corollary dischargenoun
A copied movement command helps the brain predict resulting sensations and compare them with actual feedback.
corona glandisnoun
A raised ring forms the rear edge of the penis’s enlarged tip.
coronal planenoun
An imaginary flat surface divides the body or brain into front and back portions.
coronal sectionnoun
A vertical body or brain slice follows a flat surface that separates front portions from rear portions.
coronary artery bypass graft (CABG)noun
Surgery creates a new route around narrowed or blocked heart arteries using another blood vessel to improve heart muscle blood supply.
coronary heart disease (CHD)phrase
A heart disease caused by narrowed arteries that reduce blood flow to the heart muscle.
coronary thrombosisnoun
A blood clot forms or remains within an artery supplying the heart and may obstruct blood flow.
coronary-prone behaviornoun
Certain behavior patterns, especially hostility, have been proposed to increase the likelihood of disease in arteries supplying the heart.
coronavirusnoun
A virus belonging to a family with crownlike surface spikes can infect humans or other animals and cause various illnesses.
corp-prefix
This word part contributes the meaning of a body or an organized structure.
corporanoun
Researchers use this plural of corpus for collections of language samples or, in anatomy, distinct bodily structures.
corporaladjective
Something described this way concerns the physical body or bodily experience.
corporal punishmentnoun
This punishment uses physical force to cause pain with the aim of changing someone's behavior.
corporealadjective
Something described this way has a physical, material existence rather than a spiritual nature.
corpse phobianoun
A person experiences lasting, excessive fear of dead bodies.
corpusnoun
A main body or clearly separate structure in the body, especially in brain anatomy.
corpus callosumnoun
A thick band of nerve fibers connects the brain's left and right halves.
corpus callosum agenesisnoun
The nerve bridge connecting the brain's two halves develops incompletely or does not form before birth.
corpus cavernosumnoun
Each of two upper columns inside the penis contains tissue that fills with blood during an erection.
corpus luteumnoun
A temporary ovarian structure forms after an egg's release and produces progesterone, supporting the uterine lining.
corpus mammillarenoun
Either small, rounded brain structure beneath the hypothalamus belongs to the limbic system and helps support memory.
corpus planningnoun
Deliberate efforts reshape a language's spelling, writing system, grammar, or vocabulary, often to establish shared standards.
corpus spongiosumnoun
A column of erectile tissue surrounds the penile urethra and broadens to form the penis's tip.
corpus striatumnoun
This grouping of deep brain structures includes the caudate, putamen, and globus pallidus and helps regulate voluntary movement.
correct detectionnoun
A participant correctly reports noticing a target that actually appears during a detection task.
correct rejectionphrase
In signal detection, correctly deciding that the target stimulus is absent.
correctionnoun
An adjustment added to scores or analyses to reduce error and make results more accurate.
correction for attenuationphrase
A statistical adjustment that estimates how strong a relationship would be without measurement error weakening it.
correction for continuitynoun
A statistical adjustment improves an approximation that treats separate possible values as though they lie along a smooth scale.
correction for guessingnoun
A test scoring method subtracts points for wrong answers so entirely random guessing earns zero points on average.
correction procedurenoun
During learning, the same stimulus conditions continue or return after particular responses, usually mistakes, or after missing responses.
correctional facilitynoun
An institution holds people processed through criminal or juvenile justice systems, often with a stated goal of rehabilitation.
correctional psychologynoun
This branch of forensic psychology applies assessment, treatment, and behavioral knowledge within detention, rehabilitation, and community supervision settings.
corrective advertisingnoun
Companies are required to publish advertisements that address false beliefs created by their earlier misleading advertising.
corrective emotional experiencephrase
Healing change can happen when someone has a new emotional experience with a therapist or other key person.
corrective lensnoun
An optical device placed directly on the eye or held before it changes light's path to improve sight.
corrective therapynoun
An older name for kinesiotherapy describes planned, gradually progressing exercise used to improve physical functioning and support well-being.
correlatenoun
One measured factor that tends to change along with another factor.
correlated samplesnoun
Data sets are linked because measurements come from the same participants repeatedly or from people connected to one another.
correlationnoun
Shows how strongly two things change together, usually in a straight-line pattern.
correlation analysisphrase
Statistical methods that measure how strongly two or more variables change together, without proving cause.
correlation barriernoun
A proposed limit restricts how strongly intelligence test scores can relate to outcomes such as academic achievement or life success.
correlation coefficientphrase
A number from -1 to +1 showing how strongly two scores change together in a straight-line pattern.
correlation matrixphrase
A square table showing how strongly every pair of variables in a set is related.
correlation rationoun
A statistic called eta measures relationship strength by comparing group averages, allowing patterns that curve rather than follow straight lines.
correlational fallacynoun
Someone mistakenly concludes that one thing causes another simply because the two are associated.
correlational redundancynoun
In artistic patterns, some combinations of elements appear more often than others, limiting variation and making those combinations more predictable.
correlational researchphrase
Researchers watch how two or more things change together without changing the situation themselves.
correspondencenoun
How much someone's action seems to match a lasting personality trait, like seeing cutting in line as rudeness.
correspondence biasnoun
People tend to explain someone's behavior through personal traits while giving too little weight to surrounding circumstances.
correspondence problemnoun
The visual system must determine which features across different images belong to the same objects or locations.
correspondence trainingnoun
A behavioral intervention rewards young people when actions match their promises or when their reports accurately match completed actions.
correspondent inference theorynoun
This theory explains how observers infer lasting traits from someone's actions, especially choices seen as free, intentional, and unusual.
corridor illusionnoun
Identical figures in a corridor drawing seem different in size because the apparently more distant figure looks larger.
corroborationnoun
Extra evidence that backs up a claim or theory, though support alone does not prove it true.
cortexnoun
The outer layer of an organ, especially the brain, where much higher processing happens.
cortical activationnoun
Neural activity increases in regions of the cerebrum's or cerebellum's outer covering during stimulation or task performance.
cortical amaurosisnoun
Vision is lost because the brain's primary visual cortex is damaged, even though the eyes may remain structurally normal.
cortical amnesianoun
Memory loss occurs because brain damage or another neurological problem disrupts the ability to remember.
cortical areanoun
A region within the cerebrum's outer gray matter can be distinguished by its cellular structure, function, or both.
cortical atrophyphrase
Loss of brain cells in the brain's outer layer, which can cause thinking or vision problems.
cortical barrelnoun
In whiskered animals, a small neuron cluster in touch-processing cortex represents sensory input from a corresponding facial whisker.
cortical blindnessphrase
Loss of sight caused by damage to the brain's visual cortex, even though the eyes still react normally.
cortical centernoun
A specialized region of the cerebrum's outer tissue supports a function, receives sensory signals, or sends movement signals.
cortical columnnoun
A vertical grouping of connected neurons extends through multiple cortical layers, often sharing related response properties.
cortical controlnoun
The brain’s outer layer directs bodily activities or supplies recorded signals that computers translate into artificial limb movements.
cortical deafnessphrase
Hearing is lost because sound-processing areas in the brain's cortex are damaged, even though the ears still work.
cortical dementiaphrase
Memory and thinking problems caused by damage to the brain's outer layer, as in Alzheimer's disease.
cortical dysplasianoun
The cerebral cortex develops with an unusual tissue structure, including differences in cell arrangement, size, or shape.
cortical evoked potentialnoun
A measurable electrical response arises in the cerebral cortex following a stimulus, such as a sound or light.
cortical hearing lossnoun
Hearing is reduced because damage affects higher brain regions that process sound.
cortical inhibitionnoun
Neural processes suppress activity arising in the outer tissue of the cerebrum or cerebellum.
cortical laminanoun
A single sheetlike layer of nerve cells forms part of the cerebral cortex's structure.
cortical layersnoun
Distinct bands of nerve cells form the outer tissue of the cerebrum and cerebellum, with different cellular arrangements.
cortical lesionnoun
An area of abnormal or damaged cerebral cortex may be present from birth or develop later.
cortical localizationphrase
Different parts of the cerebral cortex handle different mental and body functions.
cortical magnification factornoun
This measure describes how much cortical space represents a given amount of visual angle, usually favoring the center of gaze.
cortical mapnoun
An orderly arrangement of cortical neurons represents sensory features, body locations, or movement systems through their positions.
cortical neuronnoun
A signaling nerve cell has its main cell body located within the cerebral cortex.
cortical potentialnoun
An electrical voltage arises from the activity of nerve cells located within the cerebral cortex.
cortical processnoun
A mechanism operating in the cerebral cortex contributes to mental activities, from initial information processing to complex planning.
cortical sensory aphasianoun
Brain damage causes difficulty understanding language, while speech remains flowing but may contain incorrect or meaningless words.
cortical-arousal factornoun
Berlyne proposed an aspect of responses to art reflected in ratings toward alertness and power rather than drowsiness and weakness.
cortical–subcortical motor loopnoun
A brain circuit connecting motor cortex, basal ganglia, and thalamus helps monitor movements and arrange their sequence.
corticalizationnoun
An evolutionary process involves increasing reliance on the cerebral cortex for functions previously handled mainly by other brain regions.
cortico-prefix
This word part indicates a connection with a cortex, an organ’s outer layer, often the brain’s.
corticobasal degeneration (CBD)noun
A progressive brain disease involving abnormal tau buildup damages cortical and basal ganglia regions, affecting movement and thinking.
corticobasal syndromenoun
A worsening neurological pattern combines movement-control problems with difficulties performing learned actions, usually affecting one side more strongly.
corticobulbar fibernoun
A nerve fiber carries signals from cerebral cortex to brainstem nerve-cell groups involved in controlling head and face movements.
corticofugaladjective
This describes nerve pathways carrying signals away from the cortex of either the cerebrum or cerebellum.
corticomedial groupnoun
A collection of amygdala nuclei processes mainly smell-related signals and sends information to areas regulating bodily and behavioral responses.
corticonuclear fibernoun
A nerve fiber links cerebral cortex with brainstem nuclei, helping transmit commands for movements such as speaking and swallowing.
corticopetaladjective
This describes nerve pathways carrying signals toward the cortex of either the cerebrum or cerebellum.
corticopontineadjective
This describes connections between the brain’s cerebral cortex and its pons, a structure within the brainstem.
corticospinal fibernoun
A nerve fiber in the corticospinal pathway carries signals from cerebral cortex toward spinal circuits that help control movement.
corticospinal tractnoun
A nerve pathway carrying movement commands from the brain's cortex down to the spinal cord.
corticosteroidnoun
A steroid hormone from the adrenal cortex helps control stress, metabolism, salt, and water balance.
corticosteroid therapynoun
Medical treatment uses drugs resembling adrenal hormones to replace missing hormones or reduce inflammation.
corticosteronenoun
An adrenal hormone helps regulate energy use, and researchers measure its blood levels as one indicator of stress.
corticostriatonigral degenerationnoun
This historical name describes corticobasal degeneration, a progressive brain disease that can disrupt movement and thinking.
corticotropinnoun
A pituitary stress hormone that tells the adrenal glands to release corticosteroids, chemicals that help the body cope.
corticotropin-releasing factor (CRF)noun
A hypothalamic chemical messenger stimulates pituitary corticotropin release, helping regulate daily hormone rhythms and the body’s stress response.
cortisolnoun
A stress hormone that raises blood sugar and helps the body respond to pressure.
cortisonenoun
An inactive steroid becomes cortisol in body tissues and can be supplied as medicine when corticosteroid hormones are insufficient.
coruminationnoun
Two people repeatedly discuss personal difficulties and painful feelings so extensively that other conversation topics get crowded out.
coryzanoun
An ordinary cold often brings a runny nose as a prominent symptom.
COSCabbreviation
Military leaders use these programs and actions to reduce stress difficulties, recognize problems, and help personnel recover and work together.
cosleepingnoun
A parent and infant sleep close enough to touch, including arrangements with nearby separate sleeping surfaces.
cosmetic surgerynoun
Surgical procedures are performed primarily to change physical appearance according to a person’s goals.
cosmic consciousnessnoun
A reported state involves feeling united with the universe, historically proposed by Richard Bucke as humanity’s highest awareness.
COSRabbreviation
A person's psychological response to trauma during military activity can involve anything from slight distress to serious difficulties.
cost analysisnoun
A structured calculation identifies what providing a program costs over a specified period from a particular payer’s perspective.
cost containmentnoun
A program aims to keep spending under control while organizing and delivering its services.
cost of concurrencenoun
Performance drops when another task occurs simultaneously, even when the person is instructed to prioritize the task being measured.
cost-effectiveness analysisphrase
A way to compare programs by how much money each spends for one unit of helpful outcome.
cost-minimization analysisphrase
Compares treatments that work equally well to find which one costs less, including delivery and care expenses.
cost-offset analysisnoun
An evaluation estimates how an intervention reduces other expenses, such as later healthcare use, separately from its health benefits.
cost–benefit analysisnoun
An evaluation compares a program’s expenses with its benefits by expressing both in money.
cost–reward analysisnoun
A social psychological model proposes that people are more likely to help when expected rewards are greater or costs are lower.
cot deathnoun
An infant younger than one year dies unexpectedly, usually while asleep, and the death remains unexplained after thorough investigation.
Cotard’s syndromenoun
A rare syndrome involves firmly believing that oneself, body parts, or the world no longer exist, sometimes alongside severe depression.
cotherapynoun
Two therapists jointly provide treatment for an individual, couple, family, or group.
cotwin controlnoun
Researchers compare a twin with a particular experience or treatment against their twin who did not receive it.
couchnoun
In psychoanalysis, a patient lies on this sofa to relax and let thoughts flow freely.
cough suppressantnoun
A medicine reduces coughing, often by acting on brainstem mechanisms that regulate the cough reflex.
coulrophobianoun
A lasting, intense fear of clowns can lead someone to avoid them or experience strong distress when they appear.
counselingnoun
Professional help for personal, school, work, or relationship problems using listening, guidance, and sometimes tests.
counseling processnoun
A counselor and client work through conversations to clarify concerns, explore options, and address the client’s difficulties.
counseling psychologyphrase
This field helps people handle life, relationships, school, work, and stress by building strengths and adjusting well.
counseling relationshipnoun
A professional connection grounded in empathy, honesty, and warmth helps a counselor and client work toward change.
counseling servicesnoun
Organizations provide trained professionals who help individuals, families, or groups manage personal difficulties and make decisions.
counselornoun
A trained professional who helps people understand problems, make choices, and change behavior in healthier ways.
counterargumentnoun
A response that challenges specific parts of an argument, message, or thought.
counterattitudinal advocacynoun
A message argues for a position that conflicts with a person’s existing attitude.
counterattitudinal behaviorphrase
Acting in a way that goes against what a person says or feels they believe.
counterattitudinal role playnoun
Participants act out a role that requires expressing views opposing their own beliefs.
counterbalancingnoun
Changing the order of study conditions across people helps prevent practice, fatigue, and order effects from skewing results.
countercathexisnoun
Psychoanalytic theory proposes redirecting mental energy from unconscious wishes into opposing or related ideas that keep those wishes outside awareness.
countercompulsionnoun
A new compulsion develops to oppose an earlier one that cannot continue, eventually replacing it and preserving the compulsive pattern.
counterconditioningnoun
Changing a learned trigger by pairing it with a new response that cannot happen with the old one.
counterconformitynoun
A person deliberately opposes accepted group standards because resisting them matters more than expressing an independently chosen position.
counterculturenoun
A social movement develops shared values and ways of living that actively challenge the dominant culture.
counterfactualnoun
A thought about how the past could have happened differently, often starting with "if only."
counterfactual thinkingphrase
Mentally replaying events with different outcomes, often causing regret or sometimes relief.
counteridentificationnoun
In psychoanalysis, an analyst identifies with a client’s inner experience, experiencing an empathic form of countertransference.
countermeasurenoun
During polygraph testing, a person deliberately tries to influence the results to avoid being judged dishonest.
countermeasure-intervention programnoun
An organized intervention aims to reduce negative effects caused by problems in how a social system operates.
counterphobic characternoun
A proposed personality pattern involves enjoying risky activities, interpreted in psychoanalytic theory as a way to master anxiety.
counterproductive work behavior (CWB)phrase
Employee actions that harm coworkers or the organization, such as theft, bullying, or breaking important rules.
countershadingnoun
An animal’s darker upper surface and lighter underside help it blend into its surroundings from different viewing angles.
countershocknoun
A historical procedure applied mild electrical stimulation after an electroconvulsive treatment seizure, intending to reduce confusion or memory problems.
countershock phasenoun
In Selye’s stress model, the body responds to initial shock by activating sympathetic nerves and increasing adrenal cortex hormones.
countersuggestionnoun
A therapist offers an opposing suggestion to weaken an earlier suggestion or firmly held idea.
countertransferencenoun
A therapist's personal feelings toward a client, shaped by the therapist's own past, can affect treatment.
coupled oscillatorsnoun
A mathematical model links repeating processes that influence one another, helping explain coordinated rhythms such as alternating leg movements.
couples counselingnoun
Professional support helps romantic partners address relationship difficulties, often through brief work on specific problems.
couples therapyphrase
A therapist helps both partners together work on personal and relationship problems affecting how they get along.
coupon-return techniquenoun
Advertisers evaluate printed advertisements by counting coupons readers mail back, sometimes comparing responses to different advertisements.
couragenoun
The ability to face a difficult challenge despite meaningful risks can involve physical action, emotional endurance, or defending beliefs.
coursenoun
How a disorder or treatment usually changes over time, including how long it lasts and whether it returns.
course modifiernoun
A pattern in a disorder, such as seasonal changes or repeated episodes, helps predict or changes its development over time.
court-ordered treatmentphrase
Mental health care or evaluation a judge requires someone in a legal case to receive.
courtesan fantasynoun
A fantasy involves being a courtesan, a companion receiving financial support for intimate relationships, or imagining having such a companion.
courtshipnoun
Behaviors used to attract and assess a potential partner can prepare animals for mating or help people develop romantic relationships.
couvadenoun
Some expectant fathers experience physical symptoms during their partner’s pregnancy, with psychological factors proposed as possible contributors.
covariancenoun
A statistic showing whether two variables rise together or move in opposite directions around their averages.
covariance matrixnoun
A square table displays each variable’s variance along its diagonal and how pairs of variables vary together elsewhere.
covariatenoun
A related variable is included in an analysis to account for its effect on the main outcome.
covariationnoun
A pattern where changes in one measured thing go along with changes in another.
covariation principlenoun
People judge something as a possible cause when it appears with a behavior and disappears when that behavior is absent.
covenant marriagenoun
A legally recognized marriage arrangement requires premarital counseling and agreement to more limited reasons for divorce.
cover memorynoun
Psychoanalytic theory proposes that an apparently unimportant childhood memory can hide another, more emotionally significant experience from awareness.
cover storyphrase
A believable false explanation for a study's purpose, used so participants do not change their behavior.
coveragenoun
The health services and costs a person's insurance plan will pay for.
covering-law modelnoun
This proposed account explains an event by logically deriving it from general scientific laws together with relevant starting conditions.
covertadjective
Hidden from direct view or public notice, whether by accident or on purpose.
covert attentionnoun
Visual attention focuses on a place other than the spot where the eyes are looking.
covert behaviornoun
Private activities, such as imagining, cannot be directly seen by others and must be reported or inferred.
covert conditioningnoun
A behavioral therapy method uses imagined actions and consequences to try to change behavior in everyday situations.
covert desensitizationnoun
A therapy method pairs relaxation with imagining increasingly feared situations, aiming to reduce anxiety gradually.
covert extinctionnoun
A therapy exercise involves imagining an unwanted action without its usual reward, aiming to make that behavior less likely.
covert incestnoun
A parent crosses emotional boundaries by relying on a child for the intimate support normally sought from an adult partner.
covert modelingnoun
A therapy exercise involves picturing a role model, imagining acting similarly, and visualizing helpful results.
covert negative reinforcementnoun
A therapy exercise pairs an imagined action with relief from an imagined unpleasant situation, aiming to strengthen that action.
covert orientingnoun
Attention shifts toward a different visual location while the eyes remain directed at the same spot.
covert positive reinforcementnoun
A therapy exercise pairs a desired action with an imagined pleasant result, aiming to encourage the action in everyday life.
covert rehearsalnoun
Mentally repeating words or actions helps a person remember information or prepare to speak or act.
covert reinforcementnoun
A person mentally practices a wanted action followed by a pleasant outcome, hoping to make the action more likely.
covert responsenoun
An internal reaction, such as a thought, feeling, or bodily change, is usually inferred or measured indirectly.
covert sensitizationphrase
Using imagination, a person pairs a bad habit with a disgusting outcome to make the habit less appealing.
covert speechnoun
A person talks to themselves without audible speech, sometimes making tiny movements of the muscles used for speaking.
COVID-19abbreviation
Coronavirus disease 2019 is an infectious illness caused by SARS-CoV-2 that often affects breathing and can affect other body systems.
COWATabbreviation
This verbal fluency assessment measures how readily someone generates spoken words starting with assigned letters, helping evaluate language and executive skills.
Cowper’s glandsnoun
Two small glands near the penis base release fluid into the urethra that contributes to semen.
Cox regression analysisnoun
A statistical method estimates how predictors relate to an event’s immediate likelihood over time without specifying the baseline hazard’s shape.
CPabbreviation
A movement disorder caused by early brain injury that affects muscle control and coordination.
CPAabbreviation
The Canadian Psychological Association represents psychologists in Canada and supports psychological science, professional practice, education, and ethics.
CPIabbreviation
A personality test that measures normal social traits and everyday behavior patterns.
CPPabbreviation
Conditioned place preference develops when rewarding experiences make a person or animal favor the location associated with them.
CPQabbreviation
The Children’s Personality Questionnaire uses self-reported answers from children aged eight through twelve to assess fourteen personality dimensions.
CPR feesabbreviation
These healthcare payment guidelines use charges typical of an area to help decide how much providers receive for services.
CPRTabbreviation
Child–parent relationship therapy guides caregivers through playful interactions to better understand their children and support changes in feelings and behavior.
CPSabbreviation
The Comrey Personality Scales use questionnaire responses to assess eight personality traits in people aged sixteen and older.
CPTabbreviation
A structured therapy that helps people with trauma change unhelpful thoughts and feelings about what happened.
CPZabbreviation
Chlorpromazine is an antipsychotic medicine used to reduce symptoms such as hallucinations and delusions, with possible movement and sedation effects.
CQTabbreviation
The control question test compares bodily reactions to investigation questions and broader questions intended to provoke concern during polygraph testing.
CRabbreviation
A learned reaction that happens after a cue has been linked with something important.
CR10 scalenoun
Borg’s category-ratio scale combines number ratings and verbal labels to describe how intense a sensation feels.
cracknoun
A smokable form of cocaine produces rapid, brief stimulant effects and is relevant to studying substance use and addiction.
crack babynoun
An outdated, stigmatizing label was applied to infants exposed to crack cocaine before birth and often suggested exaggerated developmental predictions.
cracking facadesnoun
In Rogers’s encounter groups, participants are encouraged to move beyond social appearances and express their genuine feelings and experiences.
Cramér’s Vnoun
A statistic measures the overall strength of association between two categorical variables, with values ranging from zero to one.
crampnoun
A muscle contracts involuntarily and painfully, often making movement uncomfortable until the contraction eases.
cranialadjective
Toward the skull or relating to the head, especially in brain anatomy.
cranial anomalynoun
A difference in skull size, shape, or structure develops before birth and may occur alongside differences in brain development.
cranial bifidanoun
A developmental condition occurs when the skull fails to close before birth, sometimes involving missing or protruding brain tissue.
cranial capacitynoun
The space inside a skull is measured as the volume it can contain.
cranial diameternoun
The greatest distance across a skull measures its width from one side to the other.
cranial divisionnoun
This parasympathetic branch sends signals from the brainstem through cranial nerves to help regulate organs and glands.
cranial electrical stimulationnoun
A historical treatment applied weak electrical currents across the head to encourage relaxation or sleep for depression, anxiety, or sleeplessness.
cranial indexnoun
A head shape measurement divides its greatest width by its greatest length, then multiplies the result by 100.
cranial nervenoun
One of twelve paired nerves that start at the brain and carry sensing or movement signals.
cranial pia maternoun
A thin, blood vessel rich membrane hugs the brain directly, following its folds as the innermost protective covering.
cranial reflexnoun
An automatic response uses cranial nerves, such as blinking when something touches the eye's surface.
craniofacial anomalynoun
A structural difference affects the skull and face, usually beginning before birth.
craniofacial dysostosisnoun
An inherited condition called Crouzon syndrome involves early skull bone fusion, altered facial growth, and possible vision or neurological difficulties.
craniographynoun
An older method studies skull structure through photographs and drawings based on measurements and anatomical landmarks.
craniologynoun
A field examines human skull structure, including its dimensions, overall form, and other physical features.
craniometrynoun
Researchers systematically measure skull dimensions and landmarks to describe and compare their physical structure.
craniosacral systemnoun
This alternative name identifies the parasympathetic division, whose nerve pathways begin in brainstem and sacral regions.
craniostenosisnoun
Skull joints close too early, changing skull growth and sometimes affecting brain development.
craniosynostosis syndromenoun
Early joining of skull bones changes head shape and may increase pressure around the brain, especially when several joints close.
craniotelencephalic dysplasianoun
A developmental condition combines early skull joint closure, a protruding forehead, and intellectual disability, sometimes with brain tissue extending through the skull.
craniotomynoun
A surgeon temporarily removes a section of skull bone to reach the brain for an operation.
craniumnoun
The bony enclosure surrounding the brain forms the upper and back portions of the skull.
cranknoun
An informal street label names methamphetamine, a stimulant drug, particularly in a form that can be smoked.
crashnoun
The depressed, tired, and irritable period that can follow stimulant drug highs or heavy use.
cravingnoun
A powerful, hard-to-stop urge to use a substance or repeat a rewarding behavior.
crazenoun
A brief wave of intense enthusiasm spreads quickly among many people, often around a fashion, activity, or product.
CRBabbreviation
Clinically relevant behavior includes session behaviors showing everyday problems, improvements, or a client's understanding of what influences those behaviors.
creatine kinase (CK)noun
An enzyme found in muscles and brain tissue helps manage cellular energy, and raised blood levels can signal tissue damage.
creationismnoun
A belief holds that a higher intelligence brought the universe into existence, with some versions rejecting biological evolution.
creative arts therapynoun
Therapy uses activities such as painting, music, movement, or drama to support emotional expression, understanding, and personal change.
creative dramaticsnoun
Spontaneous pretend play, especially with children, supports imagination, communication, and wellbeing through participation rather than a finished performance.
creative geniusnoun
An exceptional ability enables someone to produce highly original work that makes an important contribution to society.
creative imaginationnoun
A mental ability generates strikingly new ideas that may seem to go beyond simply rearranging familiar thoughts.
creative intelligencephrase
In Sternberg's theory, the mental skills used to invent, imagine, explore, and handle new ideas.
creative synthesisnoun
Combining ideas, mental pictures, or associations produces a whole with qualities fundamentally different from those of its separate parts.
creative thinkingphrase
Making a new idea or solution by combining old ideas in an original way.
creativitynoun
Making new and useful ideas, solutions, or products by combining imagination with flexible thinking.
creativity measurementnoun
Psychological assessments estimate creative abilities through tasks that examine originality, idea generation, flexible thinking, or unusual solutions.
credentialingnoun
Checking a health provider's training, license, and work history to decide what services they may provide.
credible intervalnoun
A Bayesian range has a stated probability of containing an unknown quantity, given the observed data, prior information, and model.
cremasteric reflexnoun
An automatic muscle contraction lifts a testicle toward the body when the inner thigh is stroked or exposed to cold.
creolenoun
A complete language develops through sustained contact among different languages, combining inherited features with new patterns of its own.
crepitationnoun
A crackling or grating sound occurs within the body, including sounds from the lungs or rubbing joint surfaces.
crepuscular animalsnoun
These animals show their greatest activity around sunrise or sunset, when daylight is dim.
Crespi effectnoun
A sudden reward change shifts learned performance beyond the level expected if the new reward had been used all along.
cretinismnoun
An outdated, offensive label described congenital hypothyroidism, in which insufficient thyroid hormone from birth can affect growth and intellectual development.
Creutzfeldt–Jakob disease (CJD)noun
A rare, fatal brain disease involving misfolded prion proteins rapidly impairs thinking, memory, and movement.
CRFabbreviation
Giving a reward after every correct response, which builds a new behavior quickly.
CRHabbreviation
A brain hormone that tells the body to begin the stress-response chain.
cri du chat syndromenoun
Missing genetic material from chromosome 5's short arm causes a condition often involving developmental delays and a distinctive, high infant cry.
crib deathnoun
An infant under one year dies unexpectedly, usually during sleep, and the cause remains unexplained after a thorough investigation.
cribriform platenoun
A thin, hole-filled section of skull lets smell-sensing nerve fibers reach brain tissue just above the nasal cavity.
crime control modelnoun
A criminal justice approach prioritizes public safety and order through efficient investigation, apprehension, and processing of people suspected of crimes.
criminal anthropologynoun
A discredited historical approach claimed that inherited physical features could identify people supposedly born with a tendency to commit crimes.
criminal commitmentnoun
Court authority places someone in psychiatric confinement following an insanity acquittal or for evaluation of their ability to participate in trial.
criminal convictionphrase
A court's formal finding that someone committed a crime and is legally guilty.
criminal intentphrase
A person's guilty state of mind when doing an act, showing they meant to break the law.
criminal profilingnoun
Investigators use details of a crime to infer possible offender characteristics and narrow their search for suspects.
criminal psychologynoun
A psychology specialty studies mental processes, feelings, and circumstances behind criminal behavior to inform assessment, prevention, and rehabilitation.
criminal psychopathnoun
An older label combines repeated lawbreaking with a diagnosis of antisocial personality disorder.
criminal responsibilitynoun
Legal accountability for a criminal act depends partly on the person's mental capacity and relevant state of mind when it occurred.
criminal typenoun
A historical classification grouped people who repeatedly broke laws under the unsupported assumption that they inherited a criminal disposition.
criminally insaneadjective
An outdated legal description applies to defendants judged not criminally responsible because of a qualifying mental condition.
criminologynoun
This field examines lawbreaking, why people offend, and how society tries to stop and punish it.
crisisnoun
A highly stressful situation that overwhelms coping and often demands quick decisions or change.
crisis centernoun
A support facility offers urgent counseling or connects people facing crises with appropriate services.
crisis counselingphrase
Quick professional help given right after a trauma or disaster to keep people safe and coping.
crisis interventionphrase
Short-term counseling that helps people regain safety and coping after a sudden emotional emergency.
crisis intervention servicenoun
An organized service provides immediate practical or emotional support during personal crises, emergencies, or disasters.
crisis managementnoun
People coordinate staff, supplies, information, and decisions to handle a sudden threat and limit its effects.
crisis teamnoun
A trained group helps people manage emotional and psychological reactions during emergencies and afterward.
crisis theorynoun
A collection of ideas explains how crises begin, affect behavior, and may be prevented or resolved.
crista (crysta)noun
A sensory ridge inside each semicircular canal's widened end contains hair cells that detect changes in head rotation.
criteria of evaluationnoun
Chosen standards guide how researchers judge a program's effects and whether it meets its goals.
criteria of the psychicnoun
Historically proposed signs in an organism's body and behavior were intended to indicate consciousness.
criterionnoun
A standard used to judge, compare, or test how well something matches a goal.
criterion contaminationphrase
Happens when a score is changed by outside factors, so it no longer cleanly measures the target trait.
criterion cutoffnoun
A selected threshold marks the minimum score needed for a particular classification or decision.
criterion dataphrase
Information such as supervisor ratings or absence records used to judge how well someone does a job.
criterion dimensionsnoun
Separate aspects of work performance, such as accuracy and productivity, provide standards for evaluating an employee.
criterion groupnoun
People with an established characteristic take a test to help check whether it measures that characteristic accurately.
criterion problemnoun
A philosophical puzzle asks how we can identify knowledge when judging examples and choosing standards each seem to require the other.
criterion scorenoun
The target score used as a standard for comparison or as the outcome predicted in regression, a score-prediction method.
criterion validityphrase
Shows how well a test matches or predicts an important real-world outcome or standard.
criterion variablephrase
In research, the outcome being predicted or explained by other variables.
criterion-based content analysis (CBCA)noun
An assessment method examines features of children's accounts of alleged abuse to judge credibility, with debated accuracy.
criterion-referenced testphrase
Measures whether someone met a set standard for the material, not how they compare with others.
criticaladjective
Needed for something important to happen or for a process to work normally.
critical bandnoun
A frequency interval around a target tone contains noise components that contribute strongly to making that tone harder to hear.
critical care unit (CCU)noun
A specialized hospital department provides continuous monitoring and intensive medical support for people with life-threatening illnesses or injuries.
critical flicker frequency (CFF)noun
A flashing light reaches this rate when its separate flashes begin to look like steady illumination.
critical life eventnoun
A major life occurrence demands substantial adjustment and may shape a person's later beliefs, attitudes, or development.
critical periodphrase
An early window when certain experiences must happen for normal development, or the skill may never fully form.
critical pointnoun
In therapy, the moment a client clearly understands the problem and chooses a helpful way to address it.
critical rangenoun
A biological measurement needs to stay within these limits for the body to remain healthy.
critical regionnoun
A set of possible test-statistic results leads researchers to reject the null hypothesis under their chosen decision rule.
critical thinkingphrase
Carefully checking ideas or solutions for mistakes helps you judge evidence and solve problems wisely.
critical valuenoun
A numerical boundary separates test-statistic results that reject the null hypothesis from those that do not.
critical-incident stress debriefing (CISD)noun
A structured group intervention reviews a traumatic event and emotional reactions, aiming to reduce distress despite uncertain benefits and possible worsening.
critical-incident technique (CIT)noun
Researchers collect and analyze specific workplace episodes to identify behaviors and conditions linked with especially successful or unsuccessful performance.
CRMabbreviation
Customer relationship management uses combined records of customers' past purchases to predict what they may need later.
Cro-Magnonnoun
A historical name describes early members of our species who lived in Europe during the later Paleolithic period.
Crocker–Henderson odor systemnoun
A historical theory classifies smells by rating four proposed basic qualities: acidic, burnt, caprylic, and fragrant.
Cronbach’s alphaphrase
Shows how consistently items on a test measure the same thing, from 0 to 1.
cross sectionnoun
A slice through an object or organ reveals its internal structure along a chosen plane.
cross-activation theorynoun
One proposed explanation links synesthesia to extra connections between neighboring sensory brain areas that remain after normal developmental trimming.
cross-adaptationnoun
Adjusting to one sensory stimulus changes how sensitive someone is to a different stimulus.
cross-addictionnoun
A person experiences dependence on multiple substances during the same period.
cross-classificationnoun
Researchers sort people or observations using combinations of categories from at least two variables.
cross-classification tablenoun
A grid displays counts or percentages for combinations of categories belonging to two variables.
cross-conditioningnoun
An initially neutral cue gains a learned response by accidentally coinciding with something that naturally produces that response.
cross-correlationnoun
A statistical measure describes how closely corresponding values in different data series vary together.
cross-correlation mechanismnoun
A proposed hearing process compares sound timing between the ears to help determine where a sound originated.
cross-correspondencenoun
Supposedly independent mediums produce matching or complementary messages attributed to one spirit, without establishing that spirits caused the match.
cross-cuingnoun
Information from one sense helps identify something when the more direct sensory information is unavailable.
cross-cultural approachnoun
Researchers compare particular social practices across cultures to examine their similarities and differences.
cross-cultural psychologyphrase
Studies how people's thoughts, feelings, and actions are alike or different across cultures.
cross-cultural researchphrase
Studying thoughts and behavior in different cultures to find what is similar, different, and truly universal.
cross-cultural testingnoun
Psychological assessment across cultural groups requires checking that tests measure the same qualities fairly and meaningfully.
cross-cultural treatmentnoun
Psychological care involves a therapist and client with different cultural backgrounds, requiring attention to how those differences affect treatment.
cross-dependencenoun
One substance can prevent withdrawal from another substance that produces similar effects on the body.
cross-dimension attitude consistencynoun
Different aspects of what someone knows about a subject support similarly positive or negative judgments to a greater or lesser degree.
cross-dressingnoun
Wearing clothes usually linked with another gender for expression, performance, or sexual excitement.
cross-educationnoun
Practicing with one body part improves the performance of another body part that was not directly trained.
cross-eyenoun
An eye alignment condition involves either eye turning inward, which can interfere with the eyes working together.
cross-fosteringnoun
Researchers study offspring raised by nonbiological parents to help separate inherited influences from the effects of upbringing.
cross-functional teamnoun
Employees from different departments and levels of authority combine their expertise to address a shared task or problem.
cross-gender behaviornoun
Someone adopts clothing, gestures, speech, or roles that their society traditionally associates with a gender different from their own.
cross-lagged panel designnoun
Researchers repeatedly measure the same people's variables, testing whether earlier levels of each predict later levels of the others.
cross-linkage theorynoun
A proposed explanation of aging suggests that accumulating links between protein molecules change tissues and reduce how well they function.
cross-modal associationnoun
The brain links information from different senses, such as matching an object's appearance with how it feels.
cross-modal matchingnoun
An object first explored through one sense can later be recognized through a different sense.
cross-modal perceptionphrase
Combining information from different senses, such as sight and sound, to understand one event or object.
cross-modal transfernoun
Someone recognizes an object using a different sense from the one used during the original encounter.
cross-modality matchingnoun
A person adjusts a stimulus in one sense to match the perceived strength of a stimulus in another sense.
cross-nasal adaptationnoun
Smelling an odor through one nostril temporarily reduces sensitivity to that odor in the other nostril.
cross-productnoun
A collection of products results from multiplying every value of one variable by every value of another.
cross-sectional analysisnoun
Researchers examine measurements collected at one time to compare people, groups, or characteristics.
cross-sectional designphrase
Compares different groups, often different ages, at one moment to spot differences without tracking change over time.
cross-sectional samplingnoun
Researchers collect measurements from a sample at one time, sometimes including people of different ages or developmental stages.
cross-sequential designphrase
Tracks several age groups over time so researchers can compare ages now and changes as people grow.
cross-situational consistencynoun
A person's psychological characteristic appears in similar ways across different social settings.
cross-tabulationnoun
A table or summary shows counts or percentages for combinations of categories from two variables.
cross-talknoun
Errors arise when parts of two tasks interfere with each other while someone performs both simultaneously.
cross-tolerancenoun
Getting used to one drug can make a similar drug have less effect.
cross-trainingnoun
Teaching workers several different jobs so they can fill in for each other and increase flexibility.
cross-validationnoun
Checking a prediction method on a new part of the same data shows whether it will hold up.
crossbreedingnoun
Animals reproduce with unrelated or distantly related partners belonging to their own species.
crossed aphasianoun
Language difficulties follow damage in the brain's right half, an unusual location for damage causing aphasia.
crossed disparitynoun
The eyes receive differently positioned images of an object nearer than the surface where their images normally align.
crossed dominancenoun
A person's preferred hand and dominant eye belong to different sides of their body.
crossed reflexnoun
An automatic bodily response happens on the side opposite the location that received stimulation.
crossed-extension reflexnoun
When one leg pulls away from something painful, the other automatically straightens to help support the body.
crossed-factor designnoun
An experiment tests every possible combination of the levels of two or more manipulated factors.
crossing overnoun
Matching chromosomes swap corresponding DNA sections while egg or sperm cells form, creating new genetic combinations.
crossover designnoun
Each participant receives multiple treatments over separate periods, with the treatment order differing between participants or groups.
Crouzon syndromenoun
A genetic condition causes skull bones to join too early, affecting head and facial growth and sometimes vision or brain pressure.
crowdnoun
A temporary group of people in one place paying attention to the same thing.
crowd behaviorphrase
How people act when they gather briefly and focus on the same event or thing.
crowd psychologynoun
This field studies how gathering in crowds shapes people's thoughts, feelings, and behavior.
crowdingnoun
Stress and tension people feel when too many others share too little space.
CRSabbreviation
Conners’ Rating Scales are questionnaires that help assess attention, activity, and related behavioral concerns in young people.
crusnoun
An anatomical name describes the lower leg or a body structure shaped like a leg.
crus cerebrinoun
A bundle at the front of each cerebral peduncle carries movement signals from the cerebral cortex toward lower nervous structures.
crutchnoun
Something a person leans on to cope, often without fixing the deeper problem.
crying-cat syndromenoun
Missing material from chromosome 5 causes a genetic condition involving developmental differences and a distinctive high-pitched cry during infancy.
cryo-prefix
This word part adds the meaning of cold or freezing to a larger word.
cryogenicsnoun
This branch of physics investigates extremely cold conditions and how materials behave under them.
cryonic suspensionnoun
A deceased person's body is preserved at extremely low temperatures in the unproven hope that future technology could revive them.
cryostatnoun
A refrigerated instrument keeps tissue frozen while cutting very thin slices for examination under a microscope.
crypsisnoun
An animal avoids being noticed by staying still, blending into its surroundings, or using other concealing behavior.
cryptarithmeticnoun
An arithmetic puzzle replaces digits with letters, requiring the solver to discover which number each letter represents.
cryptesthesia (cryptaesthesia)noun
A claimed experience involves gaining information beyond known sensory channels, such as supposed telepathy or clairvoyance.
cryptic female choicenoun
After mating, female reproductive processes influence which male's sperm fertilizes eggs, without requiring conscious decisions.
crypto- (crypt-)prefix
This word part adds the meaning of something hidden or concealed to a larger word.
cryptogramnoun
A coded message substitutes letters for other letters, and the solver must discover the substitutions to read it.
cryptomnesianoun
Someone mistakes a previously encountered idea for their own new creation because they have forgotten its source.
cryptophasianoun
A private way of speaking develops between people, especially twins, that others find difficult to understand.
cryptophoric symbolismnoun
A person expresses an experience or idea indirectly through a metaphor, sometimes as part of therapy.
cryptophthalmos syndromenoun
A rare inherited condition causes skin to cover the eyes and can affect other structures, hearing, and development.
cryptorchidismnoun
One or both testicles have not moved down into the scrotum during development.
crystanoun
A sensory ridge inside each inner-ear semicircular canal contains hair cells that detect changes in head rotation.
crystal gazingnoun
Someone stares at a shiny or transparent object to prompt mental images or claim visions of hidden events.
crystal healingnoun
An unsupported treatment practice claims that crystals can improve physical or mental health by influencing an alleged bodily energy field.
crystallizationnoun
How strongly an attitude lasts over time and stands up against efforts to change it.
crystallized intelligence (crystallized ability)phrase
Stored knowledge and learned skills built from education and life experience, such as vocabulary and facts.
CSabbreviation
A once-neutral cue that triggers a learned response after being paired with something important.
CS–US intervalabbreviation
In conditioning, this measures the time separating a conditioned stimulus (CS) from an unconditioned stimulus (US).
CSAabbreviation
The Controlled Substances Act is a United States law regulating certain drugs according to misuse risks and accepted medical uses.
CSAIabbreviation
The Competitive State Anxiety Inventory assesses a person's immediate anxiety about competition, with later versions also measuring confidence.
CSERPabbreviation
A chemosensory event-related potential is a measurable electrical brain response to chemicals producing smell, taste, or sensations such as nasal tingling.
CSESabbreviation
This questionnaire assesses people's views of their groups, their worth as members, others' opinions, and how belonging shapes their identity.
CSFabbreviation
The clear liquid around the brain and spinal cord cushions and protects the central nervous system.
CSI effectnoun
A proposed influence of television crime dramas raises jurors' expectations of scientific evidence and may affect their verdicts.
CSRabbreviation
Combat stress reaction describes psychological responses to traumatic military events, ranging from mild distress to severe difficulties.
CSSabbreviation
The idea that a conditioned cue can stand in for the unconditioned stimulus.
CTabbreviation
A talk therapy that helps people notice and change unhelpful thoughts.
CT scanabbreviation
A brain imaging test that uses X-rays and computers to create detailed cross-section pictures.
CTDabbreviation
Short for cumulative trauma disorder, this condition involves muscle, tendon, or nerve problems caused by repeated overuse or improper use.
CTIabbreviation
The Constructive Thinking Inventory is a questionnaire assessing habitual thinking styles and how people handle everyday experiences.
CTSabbreviation
Short for carpal tunnel syndrome, this condition involves pressure on the wrist's median nerve, potentially causing numbness, tingling, or weakness.
CTTabbreviation
A way to understand test scores by separating true ability from random measurement error.
CTZabbreviation
The chemoreceptor trigger zone contains brainstem cells that detect certain chemicals and help set off nausea and vomiting.
cube modelnoun
This attribution model explains judgments about behavior's causes using consistency over time, differences across situations, and agreement with others' behavior.
cubic difference tonenoun
An extra tone can arise within the ear at twice the lower input frequency minus the higher input frequency.
cubicle etiquettenoun
Shared expectations guide considerate behavior around office cubicles, including managing noise, smells, cleanliness, and coworkers' privacy.
cuckoldrynoun
In animal behavior research, a female with a social partner mates with another male, potentially producing offspring her partner raises.
cuddlingnoun
Holding someone gently and closely can express affection, offer comfort, and support attachment, especially between caregivers and children.
cuenoun
A signal or hint that helps behavior, such as bringing back a memory or predicting what comes next.
cue exposurephrase
A treatment exposes someone to triggers for substance use while helping the craving weaken and fade.
cue reactivitynoun
Learned reminders of a reward, substance, or activity can trigger mental and bodily responses, including craving or urges.
cue reversalnoun
A previously learned signal changes to predict the opposite outcome, requiring the learner to update its meaning.
cue-controlled relaxationnoun
A person practices pairing a word with relaxation so that the word can later help bring about calm.
cue-dependent forgettingphrase
Memory fails when the reminder present during learning is missing during recall.
cue-overload principlenoun
A memory prompt becomes less useful for finding a particular memory as more memories become connected to it.
cued panic attacknoun
A sudden episode of intense fear and physical symptoms almost always follows encountering or anticipating a particular situation.
cued recallphrase
Remembering learned information when given a hint linked to it during study.
cued speechnoun
Hand shapes and placements accompany speech movements to make otherwise visually confusing speech sounds distinguishable for deaf or hard-of-hearing people.
cul-de-sacnoun
In maze studies, a passage ends without another way out, so the learner must return through the entrance.
culpabilitynoun
In its legal sense, being held responsible for criminal conduct makes a person subject to legal penalties.
cultnoun
A contested label describes religious or similar groups with strong authority, tight member bonds, and separation from wider society.
cult of personalitynoun
Excessive admiration centers on a leader and is often deliberately encouraged to strengthen that person's authority.
cultural absolutismnoun
This view proposes that common standards can be used to understand and judge beliefs and behavior across cultures.
cultural adaptabilitynoun
People or groups can adjust to unfamiliar cultural expectations, traditions, and ways of living in a different community.
cultural anthropologynoun
This field studies how human communities develop and maintain customs, meanings, beliefs, and social institutions.
cultural assimilationnoun
People adopt the dominant group's cultural identity and practices while giving up or reducing connections to their original culture.
cultural biasphrase
Judging people or tests through your own culture's values can lead to unfair conclusions.
cultural blindnessnoun
Strong reliance on one's own cultural assumptions makes it difficult to recognize how people from other cultures understand things.
cultural competencephrase
Having the knowledge and skills to work respectfully and effectively with people from different cultures.
cultural conservenoun
A story, custom, object, or other lasting creation preserves a community's knowledge, values, discoveries, or skills.
cultural consonancenoun
A person's beliefs and everyday life match, to varying degrees, shared ideas about how people should live within their cultural settings.
cultural deprivationnoun
Social barriers such as poverty or discrimination can limit opportunities to access and participate in a society's cultural activities.
cultural determinismnoun
This theory proposes that a society's organization and cultural environment largely produce its members' characteristics and behavior.
cultural diversitynoun
Different cultural traditions, identities, beliefs, and practices exist across communities or alongside one another within a society.
cultural driftnoun
A community's customs, expectations, and values gradually shift over time without anyone directing the overall change.
cultural epoch theorynoun
This largely discredited historical theory claimed that every culture develops through an identical sequence of social and economic stages.
cultural ergonomicsnoun
This specialty studies cultural influences on work and uses that knowledge to design systems people can operate safely and effectively.
cultural genocidenoun
A group's heritage, values, and ways of living are systematically destroyed, commonly through the actions of a more powerful group.
cultural heritagenoun
Shared customs, language, values, and creations passed down through generations that help a cultural group keep its identity.
cultural learningphrase
Passing along learned behaviors and knowledge accurately between people and generations through imitation, teaching, and working together.
cultural memorynoun
Members of a community share understandings of past events through personal recollections, stories, symbols, monuments, and traditions.
cultural monismnoun
This view favors minority groups adopting the dominant culture, claiming that cultural differences weaken a society's unity.
cultural neurosciencenoun
This field investigates relationships between cultural experiences and the brain processes involved in thinking, feeling, and behavior.
cultural normnoun
A shared expectation within a culture guides which actions people consider acceptable, appropriate, or desirable.
cultural parallelismnoun
Similar cultural practices develop in geographically separate groups believed to have had no contact with one another.
cultural pluralismnoun
Different cultural groups maintain their identities within a shared society while having equal standing and access to power.
cultural processnoun
Cultural values pass between generations and change as each generation responds to the conditions and influences around it.
cultural psychologyphrase
Studies how culture shapes people's thoughts, feelings, and actions through everyday relationships and social settings.
cultural relativismphrase
People and practices should be understood within their own culture, not judged by another culture's rules.
cultural residuenoun
Older beliefs or customs persist when cultural adjustment falls behind changing technology, economic conditions, or other aspects of life.
cultural sensitivityphrase
Understanding and respecting another group's values and adjusting your behavior to work well with them.
cultural specificity of emotionsnoun
Cultural settings influence which situations bring about emotions and how people express those emotions.
cultural tailoringphrase
Changing a study or treatment to fit a group's culture so people understand it and benefit more.
cultural test biasnoun
A test unfairly advantages certain cultural backgrounds when its content, format, or procedures distort measurement of the intended ability.
cultural transmissionnoun
People pass cultural knowledge, customs, beliefs, and rituals to younger generations through teaching, observation, and shared activities.
cultural turnnoun
Scholars increasingly placed culture at the center of explanations for human behavior, social issues, and historical events.
cultural universalismnoun
This perspective holds that shared standards can apply when interpreting and evaluating ideas, values, and actions across different cultures.
culturally loaded itemnoun
A test question relies on particular cultural experiences, potentially making answers reflect background familiarity more than the ability being assessed.
culturenoun
Shared beliefs, values, language, and customs learned in a group and passed down across generations.
culture boundadjective
An attitude, practice, or behavior is shaped by a particular culture and is uncommon beyond that cultural setting.
culture changenoun
A community's beliefs, customs, values, or practices become different over time, sometimes through contact with other communities.
culture clashnoun
An encounter reveals differing customs, values, or expectations between cultural groups, sometimes creating misunderstanding or disagreement.
culture complexnoun
A connected group of customs, beliefs, and activities centers on one important feature of a community’s life.
culture conflictnoun
Tension arises between cultures or within someone pulled toward different cultural expectations and loyalties.
culture lagnoun
Some cultural beliefs or practices change slowly and become poorly matched to newer social, economic, or technological conditions.
culture leadnoun
One part of a culture develops or changes more quickly than the rest.
culture of childrennoun
Children share customs, beliefs, and social rules that differ from adults’ and spread through interaction with other children.
culture of honorphrase
Some groups teach that people must strongly defend family reputation and personal respect when challenged.
culture patternnoun
Related traditions, beliefs, and activities form a recognizable group around a central feature of cultural life.
culture shocknoun
Entering an unfamiliar culture or facing major cultural change can bring confusion, loneliness, anxiety, or distress.
culture traitnoun
A particular belief, custom, skill, or object helps describe an aspect of a culture.
culture-bias theorynoun
This theory proposes that measurement methods can unfairly favor people from some cultures over people from others.
culture-bound syndromenoun
This historical label describes culturally distinctive patterns of distress or symptoms that may not fit standard diagnostic categories.
culture-fair testnoun
An assessment aims to reduce advantages linked to cultural background, although some cultural influence can remain.
culture-free testnoun
An idealized assessment would remove all cultural bias, but completely achieving that goal is probably impossible.
culture-relevant testsnoun
These assessments use carefully checked tasks and content suited to the cultural setting of the people taking them.
culture-specific syndromenoun
This historical label names culturally distinctive patterns of symptoms or distress that may fall outside standard diagnostic categories.
cumulantnoun
A numerical summary describes a feature of a probability distribution, such as its average, spread, or asymmetry.
cumulative continuitynoun
The results of someone’s actions build up over time and help steer the direction of their life.
cumulative distribution function (CDF)noun
For each possible cutoff, this function reports how likely an outcome is to fall at or below that cutoff.
cumulative educational advantagenoun
Knowledge built through learning over time gives someone an increasingly useful advantage.
cumulative frequency (CF)noun
A total counts observations up through a chosen value or category in an ordered sequence.
cumulative frequency distributionnoun
A table lists ordered values, their individual counts, and the combined count through each value.
cumulative percentagenoun
Percentages are added across successive categories, showing the share included so far and eventually reaching 100 percent.
cumulative probabilitynoun
The combined chance of obtaining a result no higher than a chosen value ranges from zero to one.
cumulative probability distributionnoun
A graph shows, for each value, the probability of a randomly selected observation being no higher than that value.
cumulative recordnoun
A continuously updated tally or graph tracks accumulating observations, often showing the total responses during a learning experiment.
cumulative rehearsalnoun
A memory strategy repeats each new item together with previously presented items, keeping earlier information in practice.
cumulative relative frequencynoun
The fraction of all observations included up through a chosen value combines the proportions at earlier values.
cumulative response curvenoun
A graph tracks total responses over time, with steeper sections showing faster responding and flat sections showing pauses.
cumulative scalenoun
An attitude measure orders statements so that agreeing with a stronger statement implies agreement with every weaker one.
cumulative trauma disorder (CTD)noun
Repeated overuse or strain can gradually damage muscles, tendons, or nerves, causing ongoing pain or fatigue.
cuneateadjective
Something with a wedge shape, tapering toward one end, can be described using this adjective.
cuneate fasciculusnoun
A sensory nerve pathway in the spinal cord carries upper body signals upward to the cuneate nucleus in the brainstem.
cuneate nucleusnoun
A cluster of brainstem nerve cells receives sensory signals carried upward through the cuneate fasciculus.
cuneate tuberclenoun
A raised area on the back of the medulla contains the cuneate nucleus, which receives upper body sensory signals.
cuneusnoun
A wedge of brain tissue lies on the inner occipital surface, above the calcarine groove, and contributes to vision.
cunnilingusnoun
This sexual activity involves using the lips or tongue to stimulate the vulva, including the clitoris.
cupulanoun
A jellylike cap inside an inner ear semicircular canal bends with fluid movement, helping the body detect head rotation.
curarenoun
Plant extracts block acetylcholine signals where nerves meet skeletal muscles, causing paralysis, and have been used in learning research.
curative damagesnoun
Money awarded through a civil lawsuit goes to charity on the claimant’s behalf to address a related social problem.
curative factorsnoun
Processes within group therapy, such as shared hope, belonging, and learning from others, help people make beneficial changes.
curiositynoun
A natural urge to explore, notice, and learn more about new or interesting things.
current materialnoun
Details about a client's current feelings, relationships, and life events used to understand their inner emotional patterns.
curricular field experiencenoun
Students gain knowledge through workplace participation or observation connected to their studies, often earning course credit.
curriculumnoun
The planned courses and lessons students are expected to learn in a school or program.
curriculum developmentnoun
Educators plan learning content and teaching materials around clear concepts, evidence, educational expectations, and ways to check progress.
curriculum-based assessmentnoun
A broad evaluation combines tests, observations, and other evidence to judge how well students have learned specified course content.
curriculum-based measurementnoun
A focused assessment measures student performance using tasks drawn from the curriculum being taught.
curve fittingnoun
Statistical methods choose a mathematical line or curve that closely matches observed data while reducing prediction errors.
curvilinearadjective
Describes a relationship that rises one way, then turns and goes the other way.
curvilinear regressionnoun
A statistical method models a curved relationship in which equal predictor changes can correspond to different amounts of outcome change.
Cushing’s syndromenoun
Prolonged exposure to excessive cortisol or similar medicines causes bodily changes and can affect mood and thinking.
cusp catastrophe modelnoun
A mathematical model describes how gradual changes in two controlling factors can produce sudden, large shifts in an outcome.
custodial carephrase
Help with basic daily needs for people with long-term disabilities, usually without providing actual mental health treatment.
custodial casenoun
A legal proceeding determines who should hold custody of a child and take responsibility for the child’s care.
customnoun
A culture's accepted way of acting in certain situations, passed down from older to younger generations.
customary, prevailing, and reasonable fees (CPR fees)noun
A reimbursement standard uses typical local charges to help determine payment for health care services.
customer relationship management (CRM)noun
Companies combine stored customer information, including past purchases, to anticipate needs and guide their relationships with customers.
cutaneousadjective
Something described this way involves the skin, including its structures, sensations, or responses.
cutaneous experiencenoun
A feeling such as warmth, itching, or touch arises when sensory endings within skin are activated.
cutaneous perceptionnoun
The brain becomes aware of touch, temperature, and other skin stimulation by processing signals from skin receptors.
cutaneous perception of colornoun
An alleged ability allows someone to identify colors through skin contact without using vision.
cutaneous rabbit illusionnoun
Rapid taps at separated skin locations can seem to include taps in untouched places between them.
cutaneous receptive fieldnoun
A particular patch of skin provides sensory input to a specific nerve cell or nerve pathway.
cutaneous receptornoun
A specialized sensory ending within skin detects stimulation and starts nerve signals that contribute to bodily sensations.
cutaneous sensenoun
A sensory ability uses skin receptors to detect contact, pressure, warmth, cold, vibration, or painful stimulation.
cutaneous-pupillary reflexnoun
The pupil automatically widens in response to scratching the cheek or chin.
cutoff scorephrase
The lowest test score needed to qualify for a category, decision, or passing result.
cuttingnoun
Deliberately injuring your own skin, often by making cuts, usually as a way to cope with intense distress.
cutting off reflected failure (CORFing)phrase
People protect their self-image by weakening their connection to a group that performs poorly or loses status.
CVabbreviation
The abbreviation can mean cardiovascular, concerning circulation, or curriculum vitae, a document listing education and professional accomplishments.
CVAabbreviation
Short for cerebrovascular accident, this means a stroke caused by blocked brain blood flow or bleeding.
CVLTabbreviation
This assessment measures verbal learning and memory by asking people to remember spoken words under several conditions.
CVSabbreviation
Short for chorionic villus sampling, this prenatal procedure examines placental tissue to check for certain genetic conditions.
CWBabbreviation
Short for counterproductive work behavior, this covers employee actions that interfere with an organization's functioning or its members' goals.
cyanopsianoun
A change in color vision makes objects appear unusually blue or covered by a blue tint.
cyberbullyingnoun
Bullying done through phones, social media, or other online messages meant to hurt or shame someone.
cybernetic epistemologynoun
This approach examines knowledge through feedback systems, including how meaning and interaction with an environment support knowing.
cybernetic theoryphrase
Explains families as self-correcting systems that use feedback to keep patterns steady or restore balance.
cyberneticsnoun
This field studies how living things and machines communicate, regulate their activity, and adjust using feedback.
cybersexnoun
People engage in sexual communication or activity with each other through digital technology, usually while physically apart.
cyclenoun
A repeating pattern of events or changes that happens over time, sometimes at regular intervals.
cycle of violencephrase
Describes repeating stages in abusive relationships: calm affection, rising tension, and then violence, often worsening over time.
cyclicadjective
A process follows recurring phases, with different states returning over time.
cyclic adenosine monophosphatenoun
A molecule called cAMP carries signals within cells after certain receptors respond to neurotransmitters or hormones.
cyclic AMP (cAMP; cyclic adenosine monophosphate)noun
A cellular messenger, cyclic adenosine monophosphate, helps translate certain neurotransmitter and hormone signals into changes inside cells.
cyclic datanoun
Measurements show a recognizable pattern that returns over time, often across repeated periods.
cyclic GMP (cGMP; cyclic guanosine monophosphate)noun
A molecule called cyclic guanosine monophosphate relays signals inside cells, including neurons receiving messages from other neurons.
cyclic nucleotidenoun
A ring-containing molecule, such as cAMP or cGMP, helps convert incoming chemical messages into actions inside cells.
cyclical vomiting syndromenoun
A condition causes repeated episodes of intense vomiting, separated by periods when the person generally feels well.
cyclobenzaprinenoun
A medicine reduces short-term muscle spasms through effects on the nervous system and can cause sleepiness.
cycloid psychosisnoun
A disputed diagnostic concept describes recurring psychotic episodes with rapidly changing disturbances in thinking, mood, or movement.
cyclopean eyenoun
A theoretical viewpoint between the eyes represents their combined visual information when explaining spatial perception and eye movements.
cyclophorianoun
An eye tends to rotate out of alignment when coordinated viewing with both eyes is interrupted.
cyclopianoun
A rare condition present at birth involves a single central eye cavity, with eye structures partly or completely fused.
cyclosporine (cyclosporin)noun
A medicine suppresses immune activity to help prevent transplant rejection and treat some conditions involving excessive immune responses.
cyclothymic disorderphrase
A long-lasting mood problem with milder high and low periods than full bipolar disorder.
cyclotropianoun
One or both eyes are rotationally misaligned, with a clockwise or counterclockwise twist that can disrupt coordinated vision.
Cylertnoun
A former brand name identified pemoline, a stimulant used for ADHD that was withdrawn in some countries over liver risks.
CYPabbreviation
The abbreviation means cytochrome P450, a family of enzymes that chemically process many substances, including psychiatric medicines.
cyproheptadinenoun
A medicine blocks histamine and some serotonin effects, treating allergies and sometimes conditions involving excessive serotonin activity.
cystathionine synthetase deficiencynoun
An inherited enzyme shortage disrupts homocysteine processing, causing a form of homocystinuria that can affect development and blood vessels.
cystathioninurianoun
An inherited shortage of the enzyme cystathionase disrupts amino acid processing and increases cystathionine in urine.
cyto-prefix
This word part signals that a biological word concerns cells.
cytoarchitecturenoun
The layout of cells within tissue, especially brain tissue, helps distinguish regions with different structures and functions.
cytochrome oxidasenoun
An enzyme in mitochondria helps cells use oxygen to release usable energy, with activity patterns useful for studying vision.
cytochrome oxidase blob (CO blob)noun
A small region of primary visual cortex has especially high cytochrome oxidase activity and contains neurons involved in color processing.
cytochrome P450 (CYP)noun
A family of enzymes chemically changes many substances, including psychiatric medicines, influencing how the body handles drugs.
cytogenetic mapnoun
A chromosome diagram uses numbered staining bands as landmarks for locating genes and other chromosome features.
cytokinenoun
A small protein released by cells carries messages that help coordinate immune activity, including inflammation and fever.
cytologynoun
A branch of biology examines how cells form, what they contain, and how they work.
cytomegalovirusnoun
A herpes-family virus often causes no noticeable illness but can affect hearing and development when infection occurs before birth.
Cytomelnoun
A brand name identifies liothyronine, a thyroid hormone medicine sometimes added to antidepressant treatment when response is insufficient.
cytoplasmnoun
The material inside a cell membrane but outside its nucleus includes fluid and many working cell structures.
cytosinenoun
A chemical base represented by C helps encode genetic information in DNA and RNA.
cytoskeletonnoun
A network of protein fibers inside a cell supports its shape, organizes its contents, and helps materials move.

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