Glossary / E

Psychology terms starting with E

1,292 terms with short definitions. Study these as flashcards

Eother
In statistics, this symbol stands for the average result expected over many repeated trials.
E trisomynoun
An older name for trisomy 18 describes an extra chromosome 18 copy that affects growth and development.
e-therapynoun
Psychological therapy is delivered through internet communication, such as video sessions or written messages.
EAabbreviation
Educational age indicates the age at which students typically show a given level of school achievement.
EAHCAabbreviation
A 1975 American law required public schools to provide appropriate education for students with disabilities in settings limiting unnecessary separation.
EAPabbreviation
A workplace program that gives employees short-term help for personal or job-related problems.
earnoun
The body part that detects sound and helps keep balance by sending signals to the brain.
ear canalnoun
A passage in the outer ear carries incoming sound toward the eardrum.
ear ossiclesnoun
Three tiny middle-ear bones pass vibrations from the eardrum toward the fluid-filled inner ear.
eardrumnoun
A thin membrane between the outer and middle ear vibrates with sound and moves nearby hearing bones.
Early and Periodic Screening, Diagnosis, and Treatment (EPSDT)noun
A U.S. Medicaid benefit provides regular health checks, diagnosis, and needed treatment for eligible children and young people.
early bilingualismnoun
A child develops two languages during early childhood, either together or with one introduced soon after the other.
early detectionphrase
Finding an illness at an early stage, before clear symptoms or full damage appear.
early experiencephrase
Events and relationships in the first five years can strongly shape later thinking, feelings, and social behavior.
early immersionnoun
A school program begins in kindergarten or first grade and teaches subjects through a new language across elementary school.
early infantile autismnoun
A historical autism label described early developmental differences in social communication, focused interests, and repetitive patterns of behavior.
early interventionphrase
Special help for babies and toddlers at risk aims to reduce developmental delays and support families early.
early memoryphrase
Adult recall of childhood events usually reaches back only to around age three.
Early Years Cognitive Batterynoun
A set of tasks within the Differential Ability Scales assesses thinking abilities in younger children.
Early Years of Marriage Project (EYM Project)noun
Researchers began tracking American newlyweds in 1986 to investigate marital happiness and divorce, comparing couples identified as Black or White.
early-morning awakening insomnianoun
A recurring sleep problem involves waking too early, still feeling unrested, and being unable to resume sleep.
early-onset Alzheimer’s diseasenoun
Alzheimer's disease begins before age 65, progressively affecting memory, thinking, and everyday functioning.
early-selection theorynoun
An attention theory proposes that information is selected before identification, limiting meaning processing for unattended input.
earwaxnoun
A waxy substance naturally collects in the passage leading into the ear.
ease-of-learning judgmentnoun
Before studying, a person estimates how easily they will learn and remember particular information.
Easterbrook hypothesisnoun
A proposed explanation suggests that greater arousal narrows attention, so a person notices fewer surrounding cues.
eating aidnoun
An adapted tool helps a person with a disability eat more independently.
eating compulsionnoun
A powerful urge to eat feels difficult to resist and may contribute to distressing eating patterns.
eating disorderphrase
A mental disorder where unhealthy thoughts and behaviors about food or eating seriously harm health or daily life.
Eating Disorders Awareness and Prevention, Inc.noun
A former nonprofit focused on eating disorders merged with another organization in 2001 to form the National Eating Disorders Association.
Ebbinghaus curvenoun
A graph shows memory retention often falling quickly after learning, then declining more slowly as time passes.
Ebbinghaus illusionnoun
Equal circles appear different in size when one is surrounded by larger circles and the other by smaller circles.
Ebonicsnoun
An alternative name for African American English describes a language variety with its own consistent grammatical and pronunciation patterns.
EBPabbreviation
Evidence-based practice combines strong research findings, professional skill, and a person's needs, culture, and preferences to guide care.
EBVabbreviation
Epstein–Barr virus is a common herpes virus that can cause infectious mononucleosis, especially in adolescents and young adults.
ECA Surveyabbreviation
The Epidemiologic Catchment Area Survey studied U.S. mental disorder frequency and mental health service use during the 1980s.
eCBabbreviation
An endogenous cannabinoid is a body-made chemical messenger that helps regulate nerve signaling, mood, memory, appetite, and other functions.
eccentric projectionnoun
A sensation seems located outside the body, rather than at the sensory receptors that detect it.
eccyesisnoun
An embryo implants somewhere beyond the uterine cavity, usually inside a fallopian tube.
ECFabbreviation
An extended care facility provides residential nursing support around the clock and rehabilitation, often after a hospital stay.
ECGabbreviation
An electrocardiogram records the heart's electrical activity as a line of waves using sensors placed on the body.
echinaceanoun
An herbal preparation from coneflower plants is used for colds, although evidence for its benefits is mixed.
echonoun
A repeated or mirrored message or feeling that comes back from other people or groups.
echocardiographynoun
An ultrasound test that makes pictures of the heart's parts and movement while it beats.
echoencephalographynoun
This brain imaging method uses returning ultrasound signals to reveal structures inside the skull.
echographianoun
A writing disturbance involves copying written words or phrases without grasping their meaning.
echoic memoryphrase
Keeps heard sounds in mind for about two to three seconds after they stop.
echolalianoun
Repeating another person's words right after hearing them, often seen in autism or some brain disorders.
echolocationnoun
People and other animals can locate objects by interpreting sounds that bounce back from them.
echophrasianoun
A person repeats speech heard from someone else, sometimes immediately and sometimes later.
echopraxianoun
Automatically copying another person's movements, often seen in catatonia, a state of severe movement disturbance.
echovirusnoun
This enterovirus can cause infections ranging from unnoticed illness to inflammation affecting the brain or its coverings.
eclampsianoun
This serious pregnancy complication involves seizures related to preeclampsia and can occur before birth or afterward.
eclectic behaviorismnoun
This approach to behavior therapy selects techniques from different theories according to the person's needs.
eclectic counselingnoun
This counseling approach combines ideas and methods from several theoretical traditions to help a person.
eclectic psychotherapynoun
This form of psychotherapy draws on multiple theories and techniques to address a client's needs.
eclecticismnoun
An approach selects and combines useful ideas or methods from different systems of thought.
eclimanoun
An unusually strong appetite or hunger that feels difficult to satisfy is described by this word.
ECMabbreviation
An external chemical messenger is a substance released by one organism that affects other organisms.
ecobehavioral assessmentnoun
Observers repeatedly record specific behaviors alongside surrounding events to examine how behavior varies with changing conditions.
ECochGabbreviation
Electrocochleography records electrical responses from the inner ear to help assess how hearing works.
ecofeminismnoun
This perspective connects feminism and environmental concern, proposing shared social roots for exploiting women and nature.
ECoGabbreviation
Electrocorticography records brain electrical signals using sensors placed directly against the surface of the cerebral cortex.
ecological assessmentnoun
Observations across different settings help reveal how a person's behavior changes with their surroundings.
ecological fallacynoun
A reasoning error occurs when patterns found in group data are assumed to describe individual members.
ecological momentary assessment (EMA)noun
Researchers repeatedly collect reports or measurements of current experiences and behavior as people go about everyday life.
ecological nichenoun
An organism's place in its environment includes the resources it uses and the role it plays.
ecological perceptionnoun
Gibson's approach describes directly noticing stable environmental features and opportunities for action while moving through everyday surroundings.
ecological perspectivenoun
This community psychology view examines how people and surrounding social systems influence each other to guide community improvement.
ecological psychologynoun
This approach studies how physical surroundings, social roles, and setting rules shape predictable patterns of behavior.
ecological studynoun
In psychology, this research examines how surrounding physical and social conditions relate to behavior and mental health.
ecological systems theorynoun
Bronfenbrenner's theory explains human development through interactions among individuals and connected layers of their environments over time.
ecological validityphrase
Shows how well a study's results match what happens in real-life settings.
ecologynoun
This science examines how living things interact with one another and with the environments around them.
ecomanianoun
This older label describes excessive preoccupation with family members accompanied by irritability and controlling behavior toward them.
economic modelnoun
In historical psychoanalysis, mental activity was explained through proposed quantities of psychic energy and how that energy was distributed.
Economo’s diseasenoun
Also called encephalitis lethargica, this illness involves brain inflammation associated with extreme sleepiness and problems controlling eye movements.
economynoun
A rule-based system for managing behavior, such as giving tokens as rewards.
economy of effortnoun
Living things tend to conserve energy by carrying out actions efficiently and reducing unnecessary effort.
economy principlenoun
When explanations fit the evidence equally well, this principle favors the one requiring fewer unsupported assumptions.
ecopathologynoun
Community members may label someone psychologically abnormal because that person's behavior conflicts with their local expectations.
ecopsychologynoun
This field encourages understanding humans as part of nature and developing attitudes that support care for the environment.
ecosystemnoun
A connected system where people, groups, and their environment affect one another, so one change can spread widely.
ecosystemic approachnoun
This therapy approach addresses how individuals or families interact with wider social settings, including schools, workplaces, and services.
ecphorynoun
A matching cue activates stored information, bringing a memory or associated feeling back into awareness.
ECSabbreviation
Electroconvulsive shock is an electrical stimulus used to trigger a seizure, including during electroconvulsive therapy.
Ecstasynoun
This common name for MDMA describes a psychoactive drug that can increase energy, pleasure, and feelings of emotional closeness.
ecstatic trancenoun
An altered state of awareness includes intense joy and may occur during meditation or religious practices.
ECTabbreviation
A medical treatment that uses a brief controlled seizure to quickly relieve severe depression.
ECT-induced amnesianoun
Memory loss can follow electroconvulsive therapy, affecting recall of past events or the ability to form new memories.
ecto-prefix
This word part indicates an outer location or a position beyond a structure's boundary.
ectodermnoun
An embryo's outer cell layer develops into structures including the nervous system and the skin's outer covering.
ectohormonenoun
An organism releases this chemical signal outside its body, influencing behavior in other members of its species.
ectomorphnoun
In Sheldon's historical body classification, a person with a slender, elongated build was proposed to have a reserved temperament.
ectopianoun
A body structure or group of cells is located somewhere other than its usual anatomical position.
ectopic pregnancynoun
A pregnancy implants and develops beyond the uterine cavity, usually within a fallopian tube.
ectopic testisnoun
A testis moves away from its usual descent route and settles somewhere outside the scrotum.
ectoplasmnoun
In spiritualist belief, a substance supposedly emerges from a medium's body during attempts to communicate with spirits.
ectothermnoun
An animal obtains most of its body heat from its surroundings rather than generating it internally.
EDabbreviation
The dose of a drug that produces the wanted effect.
EDAabbreviation
Exploratory data analysis examines data for patterns and possible new questions without being limited to predictions made beforehand.
edemanoun
Swelling caused by extra fluid building up in body tissues, organs, or spaces.
edgenoun
A visible boundary where one object or image area ends and another begins.
edge detectornoun
A visual nerve cell or proposed processing unit responds especially strongly to borders between lighter and darker areas.
edge theorynoun
A proposed explanation suggests fear of death prepares people for survival mainly when they sense immediate danger.
EDIabbreviation
The Emory Dyssemia Index screens for difficulties understanding and using unspoken social signals through ratings provided by someone else.
Edinger–Westphal nucleusnoun
A midbrain cell group helps control pupil narrowing and changes in the eye’s focus through parasympathetic signals.
EDRabbreviation
An electrodermal response changes the skin’s electrical properties as sweat gland activity changes with bodily arousal.
edrophoniumnoun
A rapidly acting, brief-lasting drug slows the breakdown of acetylcholine, strengthening signals involved in muscle activity.
educableadjective
Someone described this way has the capacity to learn academic knowledge and skills.
educable mentally retarded (EMR)phrase
An offensive historical school label classified students with intellectual disabilities as able to learn basic academic skills.
educationnoun
Teaching and learning that build knowledge, skills, and values.
Education for All Handicapped Children Act (EAHCA; EHA)noun
A historical American education law established public schooling rights for children with disabilities and supported learning alongside peers without disabilities.
educational accelerationnoun
Students move through school material faster than the usual schedule to match their readiness and learning abilities.
educational age (EA)noun
A student’s academic performance is expressed as the age when students typically reach that level.
educational attainment levelnoun
A person’s educational progress can be described by schooling completed, learning achieved, or standards required for advancement.
educational counselingnoun
Professional support helps students plan their education, choose courses or schools, and address problems affecting learning.
educational diagnosisnoun
An assessment investigates learning difficulties and factors affecting school performance, or names the conclusion reached through that investigation.
educational guidancenoun
Counselors help students make educational plans, select suitable courses or schools, and work through learning challenges.
educational linguisticsnoun
A field studies language in schooling and uses knowledge about language to shape teaching methods and education policies.
educational measurementnoun
Researchers and educators design and use tests to assess students’ abilities and academic skills.
educational neurosciencenoun
Researchers study how brain activity supports learning and explore how those findings might improve teaching and school curricula.
educational pacingnoun
The speed of learning or covering school material can be observed and adjusted for individual students or whole classes.
educational placementnoun
Students are matched with learning programs or settings based on their age, abilities, and educational needs.
educational programphrase
An organized course of study that can lead to a degree, certificate, or professional license.
educational psychologyphrase
Studies how people learn in school and how teaching can better support students' needs.
educational quotient (EQ)noun
A score divides a student’s educational age by their actual age, then multiplies the result by 100.
educational retardationnoun
An offensive, outdated expression described slower academic progress associated with disability or occurring within a particular subject or school setting.
educational sport psychologynoun
A specialty teaches psychological skills, such as mental imagery and attention control, to help people improve sports performance.
Educational Testing Service (ETS)noun
This nonprofit develops tests and studies how to measure learning, aiming to make educational assessment accurate and fair.
educational testsnoun
These assessments identify academic skills that need support and measure the extent of learning difficulties.
educational therapynoun
Individualized support combines teaching and therapeutic methods to address learning barriers while developing academic skills, confidence, and independence.
eductionnoun
Reasoning involves discovering the relationship within an analogy, applying that relationship to find a missing term, or both.
Edwards Personal Preference Schedule (EPPS)phrase
A forced-choice personality test for adults measures the strength of 15 everyday needs, such as achievement, order, and affiliation.
Edwards Social Desirability Scalenoun
A 39-item questionnaire assesses the tendency to describe oneself in ways that other people are likely to approve of.
Edwards syndromenoun
A genetic condition involving extra chromosome 18 material causes serious medical complications and usually substantial developmental disabilities.
EEabbreviation
Expressed emotion describes family criticism, hostility, and excessive emotional involvement toward a relative with a mental health condition.
EEGabbreviation
A test that records the brain's electrical activity through electrodes placed on the scalp.
EEG biofeedbacknoun
Training uses feedback from recorded brain electrical activity to help people practice changing patterns in that activity.
EEG measures of intelligencenoun
Proposed estimates of intelligence use recorded brain electrical activity, but findings linking them to intelligence tests have been inconsistent.
EEOCabbreviation
The federal agency that enforces workplace laws against discrimination in hiring, pay, firing, and promotion.
EFAabbreviation
Exploratory factor analysis searches patterns among many related measurements to identify a smaller set of possible underlying dimensions.
effectnoun
A change or result caused by something else, such as a drug, condition, or training program.
effect codingnoun
A regression coding method represents categories with positive, negative, and sometimes zero values to compare groups against their average.
effect lawnoun
A learning principle proposes that satisfying consequences make a behavior more likely to recur in similar circumstances.
effect sizephrase
A number showing how strong or important a difference or relationship is in study results.
effect variablenoun
The measured outcome in a study is what researchers aim to explain or predict using other variables.
effect-size correlationnoun
A correlation indicates the strength and direction of a predictor’s relationship with an outcome without adjusting for other variation.
effectancenoun
A person or organism has an actual influence on surrounding objects or events through its actions.
effective dose (ED)phrase
The smallest drug amount that produces a chosen effect, often measured by the dose helping 50% of subjects.
effective stimulusnoun
The specific feature of a presented stimulus actually guides an organism’s response, even when researchers intended another feature to matter.
effectiveness evaluationnoun
A systematic assessment examines how successfully a program reaches its stated goals using selected methods and standards.
effectiveness researchphrase
Studies how well treatments work in real care settings so patient care can be improved.
effectornoun
A muscle, gland, or acting body part carries out a response directed by nervous system signals.
effeminacynoun
A culturally shaped description applies to feminine appearance or behavior in boys or men relative to local expectations of masculinity.
efference copynoun
An internal duplicate of a movement command helps the brain predict and compare the sensory effects of its own actions.
efferentadjective
Signals or structures described this way carry information outward from a central location toward another destination.
efferent motor aphasianoun
Damage to the lower left premotor brain region causes difficulty producing connected sequences of speech sounds.
efferent nerve fibernoun
A nerve cell’s long extension carries outgoing signals from brain or spinal cord toward the body’s outer structures.
efferent neuronnoun
A nerve cell sends outgoing signals from brain or spinal cord toward a muscle, gland, or another responding structure.
efferent pathwaynoun
A connected nerve route carries outgoing signals from a central nervous system region toward structures that carry out responses.
Effexornoun
A brand name identifies venlafaxine, an antidepressant that reduces reabsorption of the chemical messengers serotonin and norepinephrine.
efficacynoun
A person's belief that they can do something well and handle the demands involved.
efficacy researchphrase
Research that tests whether a treatment works better than a placebo, an inactive fake treatment.
efficiencynoun
Getting the most work or results from the least time, effort, or other resources.
efficient causenoun
In Aristotle’s framework, the agent or process that brings something about explains its efficient cause.
effluviumnoun
Historical paranormal theories proposed an undetectable stream of tiny particles flowing from people or objects to explain unusual phenomena.
effort after meaningnoun
People repeatedly reshape unfamiliar or unclear information using familiar ideas to make it understandable.
effort justificationnoun
People may value an activity more because working hard or enduring discomfort for it makes that investment feel worthwhile.
effort syndromenoun
An older label described anxiety with symptoms such as a racing heart and breathlessness, later associated with panic disorder.
effortful processingphrase
Using attention and control to work with information, especially when it feels mentally hard.
effortfulnessnoun
A task has this quality when it demands attention and other mental resources to carry out.
effortless attentionnoun
Someone stays actively focused on an activity while feeling little need to push themselves mentally.
EFPabbreviation
Equine-facilitated psychotherapy uses activities with horses as psychological treatment guided by a mental health professional and a horse specialist.
EFPPAabbreviation
This abbreviation names a federation founded in 1981 to connect European psychology associations across education, practice, and research.
EFTabbreviation
A therapy that helps people notice, express, and change emotions to improve relationships and mental health.
egersisnoun
An unusually intense degree of wakefulness characterizes this state.
egg cellnoun
A female reproductive cell, also called an ovum, can combine with sperm during fertilization.
egonoun
The conscious part of personality that feels like you and manages real-world demands.
ego analysisnoun
Psychoanalytic techniques examine the ego's abilities, difficulties, and defenses against impulses experienced as unacceptable.
ego anxietynoun
Psychoanalytic theory describes distress arising when practical self-management, instinctive wishes, and moral demands conflict within a person.
ego boundarynoun
A person's sense of separation distinguishes their own self from other people and the surrounding world.
ego controlnoun
A personality tendency determines how strongly someone holds back emotional urges and impulses to act.
ego defectnoun
Psychoanalytic theory uses this label for missing or limited ego abilities, especially understanding reality and adapting to it.
ego defensenoun
Psychoanalytic theory proposes unconscious mental responses that shield the self from anxiety about impulses, conflicts, or outside threats.
ego depletionnoun
A proposed temporary drop in self-control occurs after earlier efforts to regulate thoughts, feelings, decisions, or behavior.
ego developmentnoun
An infant gradually becomes aware of being a separate person, distinct from caregivers and other people.
ego formationnoun
Classical psychoanalysis proposes that the ego emerges from instinctive drives as a child responds to the world's demands.
ego functionsnoun
Psychoanalytic theory assigns the ego abilities such as reasoning, remembering, managing emotions, and responding realistically to circumstances.
ego identitynoun
Psychoanalytic and Eriksonian theories describe a coherent, lasting sense of who one is across changing roles and experiences.
ego integrationnoun
Psychoanalytic theory describes bringing motives, attitudes, goals, and other personality features together into a balanced whole.
ego integrity versus despairnoun
Erikson's proposed final life stage involves older adults reviewing their lives with acceptance and satisfaction or regret and despair.
ego involvementphrase
How much a task or opinion matters to a person's self-esteem and sense of self.
ego orientationnoun
Success is judged mainly by winning or performing better than other people within this motivational outlook.
ego psychologynoun
A psychoanalytic approach emphasizes adaptation and proposes that some ego abilities operate independently of instinctive wishes and inner conflict.
ego resiliencynoun
A personality capacity allows someone to flexibly restrain or express emotional impulses as social situations require.
ego resistancenoun
Psychoanalysis describes a patient's unconscious opposition to uncovering impulses that have been kept outside awareness.
ego statenoun
Psychoanalytic theory describes a coordinated mental condition that shapes how someone relates to people and their surroundings.
ego strengthnoun
Psychoanalytic theory describes the capacity to balance impulses, moral expectations, and reality while managing frustration and stress.
ego stressnoun
An inner or outer challenge creates tension that, in psychoanalytic terms, requires the ego to adapt.
ego structurenoun
Psychoanalytic theory uses this concept for how the ego's components and abilities are organized.
ego transcendencenoun
An altered conscious state involves feeling beyond personal concerns and believing this allows a more objective view of reality.
ego weaknessnoun
Psychoanalytic theory describes difficulty managing impulses and coping with stress, frustration, or disappointment through this concept.
ego-alienadjective
A thought, wish, or impulse feels unacceptable because it conflicts with someone's values or understanding of themselves.
ego-boundary lossnoun
Someone loses a clear distinction between their own body, thoughts, or influence and those of other people or things.
ego-centered networknoun
Social network analysis examines one selected person or point and its connections to others using this network.
ego-defensive function of an attitudenoun
An attitude can help someone protect or improve their feelings of personal worth.
ego-dystonicadjective
Describing thoughts or urges that feel unwanted, upsetting, and unlike a person's usual sense of self.
ego-dystonic homosexualitynoun
A historical diagnostic label described distress about unwanted same-sex attraction, including wishing for attraction to people of another sex.
ego-idealnoun
Psychoanalytic theory describes an inner model of the person someone hopes to become, shaped by admired values and people.
ego-splittingnoun
Psychoanalytic theory describes the ego maintaining opposing attitudes toward the same thing at the same time.
ego-syntonicadjective
Fitting a person's self-image, so the thought or behavior feels acceptable, not upsetting or wrong.
egocentric predicamentnoun
A philosophical problem asks how we can know other minds or an outside world if experience is entirely private.
egocentric speechphrase
Children sometimes talk aloud to themselves without adjusting for listeners, often while guiding their own thinking.
egocentrismnoun
Seeing the world only from your own view and assuming others see and feel the same.
egoismnoun
A pattern of selfish behavior driven by self-interest and little concern for other people's needs.
egoistic helpingnoun
Someone helps another person mainly to gain a personal benefit, such as pleasure, recognition, or a reward.
egoistic relative deprivationnoun
Someone feels personally disadvantaged because their resources or standing fall below what they expect or see others having.
egoistic suicidenoun
Durkheim's historical theory proposed a category of suicide linked to weak social bonds and limited belonging within groups.
egomanianoun
Extreme self-preoccupation involves inflated beliefs about personal importance or ability and little attention to other people's needs.
egopathynoun
An older descriptive label links exaggerated personal importance with hostility toward others, often expressed through putting them down.
egotheismnoun
A person identifies themselves with a god or divine being in this form of belief.
egotismnoun
Someone shows excessive pride in themselves or gives too much attention to their own importance.
EHAabbreviation
This abbreviation names a 1975 United States law expanding educational rights for children with disabilities in settings that minimize separation.
EHRabbreviation
An electronic health record stores a person's health information digitally for authorized professionals to use when coordinating care.
eidetic imagenoun
A vivid visual picture remains in someone's mind for seconds or minutes after the original scene disappears.
eigenvaluenoun
In statistical data reduction, a number indicates how much variation a particular component or factor accounts for.
eigenvectornoun
A nonzero mathematical arrow becomes a multiple of itself under a particular linear transformation, keeping the same line.
Eigenweltnoun
In existential psychology, this describes the personal world formed through how someone relates to and experiences themselves.
eighth cranial nervenoun
The vestibulocochlear nerve carries information about sounds and balance from structures inside the ear toward the brain.
Einstellungnoun
A mental readiness shaped by experience or instructions guides responses and can make different approaches harder to notice.
either–or fallacynoun
An argument wrongly presents two options as the only choices, overlooking other possibilities or ways both could apply.
either–or thinkingnoun
A person views situations through opposite extremes while overlooking possibilities between them.
ejaculationnoun
The release of semen from the penis during sexual climax, caused by automatic and voluntary muscle contractions.
ejaculatory ductnoun
Each of two small tubes carries sperm and seminal fluid through the prostate into the urethra during ejaculation.
Ekbom’s syndromenoun
In this usage, restless legs syndrome involves uncomfortable leg sensations and an urge to move during rest, often at night.
EKGabbreviation
A test that records the heart's electrical activity through electrodes placed on the skin.
elaborated codenoun
A language style uses varied vocabulary and detailed sentence structures to express meaning with less reliance on shared context.
elaborationnoun
Careful thinking about the main arguments in a message before deciding what attitude to hold.
elaboration-likelihood model (ELM)noun
A persuasion theory explains attitude change through varying amounts of thought, from careful consideration of reasons to reliance on simple cues.
elaborative rehearsalphrase
Remembering improves when new information is connected to things you already know in meaningful ways.
elationnoun
An unusually high, overly cheerful mood with restless energy, often seen in mania or other disorders.
Elavilnoun
This brand name identifies amitriptyline, a tricyclic antidepressant also used for some forms of ongoing pain and migraine prevention.
ELBWabbreviation
The abbreviation means extremely low birth weight, describing a baby who weighs under 1,000 grams when born.
Eldeprylnoun
This brand name identifies oral selegiline, a medicine used with other treatment for Parkinson's disease that slows dopamine breakdown.
elder abusenoun
Harming, exploiting, or neglecting a person age 60 or older, whether by action or by failing to help.
elder carenoun
Support helps older adults meet daily needs through personal assistance, health services, supervision, or social resources.
elder neglectphrase
When a caregiver does not provide the needed care for an older adult.
elderspeaknoun
People sometimes use overly simple, slow, or loud speech with older adults because they assume age limits understanding.
electivenoun
A school class a student chooses freely instead of one required for graduation.
elective abortionnoun
A pregnancy is deliberately ended through medication or a procedure following a planned decision.
elective affinitynoun
A person feels drawn to someone, something, or an idea through sympathy, shared preferences, or a sense of connection.
elective bilingualismnoun
A person gains a second language through formal education, including literacy, in a context that associates it with social status.
elective mutismnoun
An older name for selective mutism describes persistent difficulty speaking in certain social settings despite being able to speak elsewhere.
Electra complexphrase
In Jung's view, a girl's early wish for her father and rivalry with her mother.
electric ophthalmianoun
Exposure to ultraviolet light from electric welding can inflame the eye's surface, producing this painful eye condition.
electric potentialnoun
A quantity measured in volts expresses electrical potential energy per unit of charge at a point relative to a reference.
electric sensenoun
Some animals detect nearby electric fields, including fields they may generate themselves, to gather information about their surroundings.
electric shock methodnoun
An older broad label describes treatments using electricity, including electroconvulsive therapy, which uses controlled current to trigger a seizure.
electric sinknoun
A device or location receives electrical energy from elsewhere and may absorb or dissipate it.
electrical activity of the brainnoun
Brain cells produce changing electrical signals both during ongoing activity and in response to events.
electrical intracranial stimulationnoun
Electrodes implanted inside the skull deliver current directly to selected brain regions to change their activity.
electrical self-stimulation of the brain (ESSB)noun
An individual performs an action that triggers current through implanted electrodes in their own brain, often to study reward.
electrical stimulationphrase
Using electricity to activate nerve cells, sometimes by sending current directly into the brain.
electrical stimulation of the cortexnoun
Electrodes deliver current to the brain's outer layer to influence activity, investigate functions, or produce therapeutic effects.
electrical synapsenoun
Connected nerve cells pass electrical signals directly through tiny protein channels linking their interiors.
electrical transcranial stimulation (ETS)noun
In historical electrosleep therapy, weak electrical currents were applied across the head to encourage relaxation or sleep.
electroacupuncturenoun
A form of acupuncture applies small electrical currents through inserted needles to stimulate selected body sites.
electrocardiogram (ECG; EKG)noun
A recording of the heart's electrical activity used to check how well it is working.
electrocardiographic effectnoun
A change in the heart's electrical signals appears on a recording, sometimes following medication use.
electrocochleography (ECochG)noun
A hearing test records electrical responses generated in the cochlea and nearby auditory nerve when sounds are presented.
electroconvulsive therapy (ECT)phrase
A medical treatment that triggers a brief seizure with electricity to quickly relieve severe depression when medicines fail.
electrocorticography (ECoG)noun
A recording method measures brain signals with electrodes resting directly against the cortex, the brain's outer layer.
electrodenoun
A small conductor placed on the body or in tissue to record or send electrical signals.
electrode placementphrase
Putting recording sensors on the head or into nerve tissue to measure brain electrical activity.
electrodermal changesnoun
Shifts in the skin's electrical properties, often linked to sweat gland activity, can indicate changes in bodily arousal.
electrodermal response (EDR)noun
Sweat gland activity changes the skin's electrical properties following a stimulus, providing a measure of bodily arousal.
electrodiagnosisnoun
Clinicians investigate disorders by measuring bodily electrical signals or testing how nerves and muscles respond to electrical stimulation.
electroencephalographic audiometrynoun
A hearing assessment estimates sound sensitivity by recording how brain signals change when sounds are played.
electroencephalography (EEG)noun
A test that records the brain's electrical activity from scalp sensors to study sleep, seizures, and other problems.
electrolyte imbalancephrase
Having too much or too little of key body salts can disrupt fluid balance, nerves, and muscles.
electromagnetic spectrumnoun
The full range of electromagnetic radiation includes radio waves, visible light, and gamma rays, ordered by wavelength or frequency.
electromyography (EMG)noun
Electrodes on the skin or inside muscles record electrical signals produced by muscle activity.
electronarcosisnoun
A historical electrical treatment produced seizure-related muscle stiffening while limiting or preventing the rhythmic jerking phase.
electronic aid to daily livingnoun
An assistive electronic device helps someone control nearby features, such as lights, doors, or appliances, to support everyday independence.
electronic brainstormingnoun
People use digital tools to generate and build on ideas together while postponing judgment about their value.
electronic cigarette (e-cigarette)noun
A battery-powered device heats liquid into an aerosol that users inhale, often delivering nicotine.
electronic health record (EHR)phrase
A digital patient chart that authorized providers share and update to coordinate care and patient access.
electronic nosenoun
A device uses sensors to detect gases or recognize odor patterns, sometimes helping researchers model the sense of smell.
electronystagmographynoun
Electrodes near the eyes record movement-related electrical changes to assess involuntary eye movements and parts of the balance system.
electrooculography (EOG)noun
Electrodes record changes caused by eye movement in the voltage difference between the eye's front and back.
electroolfactography (EOG)noun
This method records electrical signals from smell receptors when different odor substances reach them.
electrophysiologic audiometrynoun
These hearing tests measure electrical signals produced in the ear or nervous system after sounds are presented.
electrophysiologynoun
This scientific field investigates how living cells and tissues generate, carry, and respond to electrical signals.
electroplethysmographynoun
This testing method uses electrical measurements to track blood volume or its changes within body regions.
electroretinographynoun
This method records how the retina, the eye's light-sensitive lining, responds electrically to light.
electroshock therapy (EST)noun
This older name describes electroconvulsive therapy, which uses controlled electrical stimulation under anesthesia to trigger therapeutic seizures.
electrosleep therapynoun
This historical treatment applied weak electrical currents across the head, aiming to promote relaxation or sleep and ease psychological symptoms.
electrostimulationnoun
In this behavioral treatment usage, electrical shocks serve as unpleasant events intended to change behavior.
electrostimulation of the brain (ESB)noun
Researchers apply electrical stimulation to a selected brain region to investigate what that region does.
electrostimulatornoun
An electrical device applies adjustable pulses to selected bodily tissues.
electrotactile aidnoun
This assistive device converts information, such as sound, into electrical patterns that a person feels on their skin.
electrotherapynoun
This broad category includes treatments that apply electrical current to the body for a therapeutic purpose.
electrotonic conductionnoun
An electrical disturbance spreads across nearby nerve or muscle cell membrane without renewing itself, losing strength over distance.
electrotonusnoun
Applied electrical current changes a nerve's or muscle's electrical condition, responsiveness, or ability to carry signals.
elegant solutionnoun
An answer solves a problem very effectively while requiring few steps, resources, or unsupported assumptions.
elementnoun
One basic part that makes up a larger whole, often not broken into simpler parts.
element-level compatibility effectnoun
Response speed and accuracy depend on how naturally each individual signal matches its assigned action within a set.
elementarismnoun
This approach explains complex experiences or behaviors by breaking them into basic parts, such as sensations or simple responses.
elementary cognitive task (ECT)noun
A simple laboratory activity measures how quickly someone responds while performing a task assumed to require basic mental processing.
Elephant Man’s diseasenoun
This outdated label describes Joseph Merrick's condition, thought more likely to have been Proteus syndrome than neurofibromatosis.
elevated mazenoun
A research maze uses raised, wall-free paths separated by gaps, with wrong turns ending at the edge of a path.
elevated moodphrase
An unusually high emotional state with strong happiness, excitement, and a sense that everything feels good.
elevated plus mazenoun
A raised, cross-shaped apparatus with two open and two enclosed arms helps researchers study anxiety-related behavior in rodents.
elevator phobiaphrase
A lasting, unreasonable fear of elevators, often tied to heights, closed spaces, or panic sensations.
eleventh cranial nervenoun
Also called the accessory nerve, this nerve controls muscles that help turn the head and raise the shoulders.
elicitationnoun
A particular stimulus reliably brings about a specific response, such as food causing the mouth to water.
elicited behaviornoun
A response occurs predictably when a particular stimulus triggers it, as in many reflexes.
elimination by aspectsnoun
This decision theory proposes choosing by repeatedly discarding options that lack a selected important feature until one remains.
elimination disorderphrase
A childhood condition involving repeated trouble controlling pee or poop, not caused by illness or substances.
elimination drivenoun
A bodily urge motivates a person to empty the bladder or bowels and can be influenced by psychological factors.
eliminativismnoun
This philosophical view proposes replacing everyday explanations involving beliefs, feelings, and intentions with scientific accounts of biological processes.
elisionnoun
Speakers leave out particular sounds in certain speech contexts, often when words are spoken together.
elite athletenoun
A highly skilled sports competitor typically participates in professional contests or events involving the best competitors nationally or internationally.
elite bilingualismnoun
A person learns a second language through formal education, including literacy, in circumstances where this learning carries social prestige.
ellipsisnoun
A speaker or writer leaves out words that the surrounding context allows someone to understand.
Ellis–van Creveld syndromenoun
An inherited recessive condition causes short stature, extra fingers or toes, changes in teeth and nails, and sometimes heart differences.
ELMabbreviation
The elaboration-likelihood model proposes that persuasion varies with how deeply people examine information, influencing the strength of resulting attitudes.
elopementnoun
In psychiatric care, a patient leaves a hospital or treatment unit without the required permission.
ELSI Programnoun
A Human Genome Project program studies how discoveries about genes affect people's rights, emotions, cultures, and healthcare.
EMAabbreviation
Ecological momentary assessment repeatedly measures people's current experiences or behavior during everyday life, often at randomly chosen times.
emancipated minorphrase
A person under 18 who lives independently and can make many legal decisions like an adult.
emancipation disordernoun
This clinical label describes distress in young people who want freedom from parents but struggle with independence and its responsibilities.
emasculationnoun
In psychological usage, a man feels that his masculinity has been diminished, often through culturally shaped expectations about male roles.
embalming fluidnoun
In drug slang, this label often means a liquid containing phencyclidine, or PCP, rather than chemicals used for preserving bodies.
embarrassmentnoun
Feeling awkward and flustered because other people are watching, noticing, or mildly disapproving.
embedded figurenoun
A recognizable image blends into a more complicated visual pattern, making it difficult to notice at first.
Embedded Figures Test (EFT)noun
This assessment asks people to locate simple shapes within complex drawings, helping evaluate how they separate details from surrounding patterns.
embedded sentencenoun
In transformational grammar, a smaller sentence appears as a dependent clause inside a larger sentence.
embeddedness of an attitudenoun
This describes how extensively an attitude connects in memory with other attitudes, beliefs, or values.
emblemnoun
A gesture communicates a specific message that people within a culture generally recognize without spoken words.
embodied cognitionnoun
This theoretical approach proposes that thinking is shaped by the body's structure, sensory experiences, movements, and interactions with surroundings.
embolic strokephrase
A stroke happens when traveling debris blocks a brain artery suddenly, cutting off blood flow.
embolismnoun
Blood circulation is blocked when material traveling from elsewhere lodges inside a blood vessel.
embolusnoun
A traveling piece of material, such as a clot or air bubble, can lodge in a vessel and block circulation.
embryonoun
In human pregnancy, the developing baby from conception until week eight is called an embryo.
embryo transfernoun
An embryo created through fertilization outside the body is placed into a uterus with the aim of establishing pregnancy.
embryologynoun
This branch of biology examines how organisms form and develop during their earliest stages of life.
embryonic stagephrase
During this prenatal period, the embryo forms major body parts between the germinal stage and the fetal stage.
embryonic stem cellnoun
An unspecialized cell from an early embryo can multiply and develop into nearly any specialized type of body cell.
EmCabbreviation
The abbreviation names the extreme capsule, a brain pathway connecting several regions and possibly carrying information used in language.
EMDRabbreviation
A therapy for trauma where people recall painful memories while following back-and-forth movements or taps.
emergencenoun
New, more complex abilities can arise from simpler parts without being fully predictable from those parts alone.
emergency call systemnoun
A portable or wearable device lets someone request urgent help when reaching a telephone may be difficult.
emergency interventionphrase
Immediate help after a sudden dangerous event to reduce harm, assess safety, and plan next care.
Emergency Medical Treatment and Active Labor Act (EMTALA)noun
This U.S. law requires Medicare-participating emergency departments to assess patients and stabilize emergencies, even when patients cannot afford care.
emergency psychotherapynoun
Urgent psychological treatment helps people manage severe distress, suicidal feelings, or overwhelming reactions following a traumatic experience.
emergency reactionnoun
The sympathetic nervous system prepares the body to confront or escape a perceived threat by making energy available quickly.
emergency servicesphrase
Immediate medical or mental health help given when someone seems to need urgent care.
emergency syndromenoun
A perceived threat activates bodily changes, such as faster breathing and heartbeat, that prepare someone for immediate action.
emergent evolutionnoun
This theory proposes that evolving species and adaptations develop new qualities that cannot be fully explained by their ancestral forms.
emergent featurenoun
A noticeable visual pattern arises when simpler elements combine, making the whole easier to recognize than its separate parts.
emergent leadernoun
Someone gradually becomes a group's accepted leader through members' responses, without being formally chosen or assigned the role.
emergent literacynoun
Early knowledge, skills, and attitudes prepare children for reading and writing before formal lessons begin.
emergent propertynoun
A quality appears in a complex whole that cannot be predicted simply by examining its separate parts.
emergent-norm theorynoun
This theory proposes that crowds act similarly because members follow shared expectations that develop during their interactions.
emergentismnoun
This view holds that interactions among basic processes create complex qualities that those processes alone cannot fully explain.
emerging adulthoodphrase
A stage from about 18 to 25 when people explore adult choices while not yet feeling fully grown up.
emetic therapynoun
An aversion treatment pairs targeted behaviors or cues with drug-induced nausea or vomiting to discourage those behaviors.
EMGabbreviation
Short for electromyography, this procedure uses electrodes to measure and record electrical signals generated by muscles.
emicadjective
Describing a way of studying behavior from inside a culture's own meanings and viewpoint.
emic–etic distinctionnoun
Researchers distinguish understanding behavior through a culture's own meanings from studying it with concepts intended for comparison across cultures.
emitted behaviornoun
An action occurs without being automatically triggered by a specific stimulus, unlike a reflex response.
Emmert’s lawnoun
An afterimage appears proportionally larger as the surface where it seems to appear is perceived as farther away.
emmetropianoun
An eye focuses light from distant objects directly onto the retina without needing extra focusing effort or optical correction.
Emory Dyssemia Index (EDI)noun
An observer-completed screening questionnaire checks how often someone has difficulty understanding or using nonverbal social signals.
emotionnoun
A whole-body response of feelings, actions, and body changes to something important happening.
emotion regulationphrase
Managing how strongly and how long feelings happen, either on purpose or automatically.
emotion-focused copingphrase
Managing stress by changing your feelings about a problem instead of changing the problem itself.
emotion-focused couples therapynoun
Partners work with a therapist to understand emotional needs, change recurring conflicts, and strengthen their emotional connection.
emotion-focused therapy (EFT)phrase
A therapy that helps people notice, accept, understand, and manage feelings to solve problems and grow.
emotional abusenoun
Repeated nonphysical mistreatment, such as threats, humiliation, or isolation, that harms a person's feelings, behavior, or mental health.
emotional adjustmentnoun
A person adapts to life circumstances by accepting feelings and adjusting attitudes or emotional expression to fit the situation.
emotional anesthesianoun
After trauma, a person may feel emotionally numb and struggle to express feelings or experience closeness with others.
emotional blockingnoun
Intense feelings, especially fear, interrupt a person's ability to think, speak, or respond.
emotional chargephrase
The felt strength and positive or negative pull of an emotion, especially when intense feelings build up.
emotional cognitionphrase
Correctly noticing and understanding feelings in yourself and other people from clues like faces and tone of voice.
emotional conflictnoun
Strong feelings pull a person in incompatible directions, creating distress or inner tension.
emotional contagionphrase
Feelings can quickly spread from one person to others in a group or community.
emotional contentphrase
Feeling-related themes in messages or situations that strongly stir people's emotions.
emotional dependencenoun
A person relies on other people for reassurance, comfort, and emotional care.
emotional deprivationnoun
Someone lacks close relationships that provide enough affection, attention, and acceptance, especially during childhood.
emotional deteriorationnoun
This descriptive label combines reduced self-care, little interest in people or surroundings, and emotional responses poorly matched to circumstances.
emotional developmentphrase
Growing ability to feel, show, understand, and manage emotions in ways that fit one's age and situation.
emotional disordernoun
A broad label describes psychological conditions mainly involving emotional responses whose intensity or fit with circumstances causes significant difficulties.
emotional dispositionnoun
A person has a usual tendency to experience certain kinds of feelings, such as cheerfulness or worry.
emotional dissemblancenoun
Someone's visible or spoken emotional expression differs from what they actually feel, sometimes because of social expectations.
emotional disturbancenoun
Emotional difficulties lead to behavior that substantially interferes with learning, relationships, or participation in everyday social life.
emotional divorcenoun
Married partners remain married but lead separate lives with little meaningful interaction or emotional connection.
emotional dysregulationphrase
Having trouble controlling feelings so reactions become too strong, too fast, or hard to calm down.
emotional engineeringnoun
Designers study people's feelings about product features and use those findings to guide how products are made.
emotional expressionphrase
Showing feelings through face, voice, posture, or actions, often shaping how other people respond.
emotional floodingnoun
A sudden rush of intense feelings overwhelms a person's ability to manage them.
emotional illnessnoun
This broad label describes mental health conditions in which difficult or disproportionate emotional reactions are a central feature.
emotional immaturityphrase
Showing feelings with poor control or with more intensity than a situation reasonably calls for.
emotional incestnoun
In this usage, a caregiver sexually abuses a child through sexualized comments or interactions without physical contact.
emotional inoculationnoun
Mentally practicing an anxiety-provoking situation may reduce worry by helping a person anticipate feelings and plan coping responses.
emotional insightnoun
A person recognizes their own or others' feelings and may understand emotional experiences underlying their difficulties.
emotional instabilityphrase
Having feelings that shift quickly and unpredictably from one emotion to another.
emotional insulationnoun
A proposed defense involves becoming emotionally detached or seemingly indifferent when facing frustration or disappointment.
emotional intelligencenoun
Skill in noticing, understanding, using, and managing emotions to guide thinking and behavior.
emotional intelligence quotientnoun
A score aims to summarize how well someone recognizes, understands, uses, or manages emotional information.
emotional isolationnoun
A person defensively distances themselves from feelings after frustration or disappointment, appearing detached or unconcerned.
emotional maturitynoun
A person can manage strong feelings and express them in thoughtful ways suited to the situation.
emotional memoryphrase
Memory for experiences that caused strong feelings, stored either consciously or outside awareness.
emotional processing theorynoun
This theory proposes that activating fear-related memories while encountering new, corrective information changes fear patterns and reduces distress.
emotional quotientnoun
A numerical result is intended to represent a person's emotional intelligence, including understanding and managing emotions.
emotional reeducationnoun
Psychotherapy helps someone understand emotional conflicts and change feelings, attitudes, and responses that contribute to ongoing difficulties.
emotional releasephrase
A sudden letting out of feelings that were held in or pushed down for a while.
emotional responsephrase
A feeling such as fear, sadness, or joy triggered by something that happens.
emotional securitynoun
A person feels emotionally safe and confident, without a persistent sense that something threatening is about to happen.
emotional stabilityphrase
Showing steady, predictable feelings without quick, strong mood shifts from one moment to the next.
emotional stressnoun
Psychological tension and unease arise from experiences such as perceived threats, grief, frustration, inner conflict, or shaken confidence.
emotional stupornoun
Profoundly limited responses to surroundings and an inability to speak accompany depression or extreme anxiety in this condition.
emotional supportphrase
Showing care through words or actions that give someone comfort, empathy, reassurance, and acceptance.
emotional tensionphrase
A feeling of inner strain or uneasiness caused by stress, conflict, or strong emotions.
emotional unconsciousnoun
This proposed aspect of mental life includes emotional or motivational states that influence thinking and behavior without conscious awareness.
emotional valencenoun
The pleasantness or unpleasantness of an emotion or experience describes its position along an emotional scale.
emotionalitynoun
How strongly and openly a person feels and shows emotions, whether pleasant or unpleasant.
emotionally based persuasionnoun
An attempt to change someone's attitude works mainly by changing their feelings about the subject.
emotiveadjective
Describing words or actions that stir up strong feelings.
emotive imageryphrase
Having a person picture upsetting scenes while staying relaxed to weaken fear responses.
emotive techniquenoun
A therapy exercise encourages vivid expression of thoughts and feelings so they become easier to explore together.
empathic failurenoun
Someone misses or misunderstands another person's feelings, thoughts, or point of view.
empathynoun
Understanding another person's viewpoint and feelings as if you were standing in their shoes.
empathy trainingphrase
A structured program that helps someone better understand others' feelings and respond with more caring communication.
empathy-altruism hypothesisphrase
Feeling another person's pain can create a selfless wish to help them for their sake.
empiric-risk figurenoun
A percentage estimates inherited disorder risk from family observations when the genetic pathway is unclear.
empiricaladjective
Based on careful observation or experiments rather than guesses, opinions, or pure theory.
empirical constructnoun
An explanatory concept is built from events or processes that researchers can observe, measure, and check.
empirical groundingnoun
Researchers connect a theory's concepts to events that can be observed or measured scientifically.
empirical knowledgenoun
Understanding comes from experience, careful observation, or experiments, giving claims a basis in evidence.
empirical methodnoun
An investigation gathers evidence through experiments or organized observations to answer a question.
empirical psychologynoun
An approach to psychology explains behavior and mental activity using evidence from careful observations and experiments.
empirical realitynoun
The parts of the world available to observation and measurement can be investigated using scientific evidence.
empirical selfnoun
In William James's theory, the self someone can know includes their belongings, social identity, and inner experience.
empirical testnoun
Researchers check a prediction or explanation by comparing it with experimental results or carefully collected observations.
empirical validitynoun
The strength of research findings supporting an assessment or model indicates how accurately it measures or explains its target.
empirical-criterion keyingnoun
Personality test developers keep questions whose answers distinguish people with a known characteristic from people without it.
empirical-rational strategynoun
A proposed approach to changing society assumes that factual information and logical arguments alone can persuade people to adopt different attitudes.
empirically keyed testnoun
An assessment assigns scores according to answer patterns observed in comparison groups whose relevant characteristics have already been established.
empiricismnoun
The belief that knowledge should come from direct experience, observation, and testing rather than inborn ideas.
employee appraisalnoun
An assessment judges someone's work performance and relevant qualities, such as cooperation with coworkers.
employee assistance program (EAP)phrase
A workplace service helps employees with personal problems hurting job performance through assessment, counseling, and referrals for treatment.
employee comparison techniquenoun
A workplace assessment judges employees' performance by comparing workers with one another.
employee engagementphrase
A worker's energetic emotional and mental connection to the job that drives effort, focus, and dedication.
employee evaluationnoun
A reviewer assesses how well someone performs their job, including personal qualities relevant to that work.
Employee Retirement Income Security Act (ERISA)noun
A United States federal law enacted in 1974 established protections and standards for many private workplace retirement and benefit plans.
employee trainingnoun
A planned learning program helps workers develop job knowledge, skills, or attitudes and adjust to workplace roles.
employment at willnoun
A legal arrangement generally allows either party to end employment without advance notice or explanation, subject to legal and contractual limits.
employment counselingnoun
Professional guidance helps people handle work concerns, including finding jobs, workplace difficulties, and losing employment.
employment discriminationnoun
An employer treats people unequally because of characteristics unrelated to their job qualifications or performance.
employment interviewnoun
An employer and job applicant discuss the position and the applicant's background to help assess suitability.
employment psychologynoun
A branch of psychology studies people at work and applies findings to improve organizations and workers' well-being.
employment testphrase
A hiring measure used to predict how well a person will perform at a job.
empowermentnoun
Building people's skills, knowledge, and confidence so they can make choices and control their lives.
empowerment evaluationnoun
Service providers, sometimes joined by clients, directly assess their program while an evaluator guides the process.
empty nestphrase
A stage when grown children leave home, often leaving parents lonely or without a clear role.
empty setnoun
In mathematics, a set contains no members at all.
empty speechphrase
Speaking smoothly and at length without giving useful or meaningful information.
empty wordnoun
A word such as “the” or “and” mainly serves grammar rather than naming things, actions, or qualities.
empty-chair techniquenoun
In therapy, someone addresses an imagined person or part of themselves in an unoccupied chair, sometimes switching seats to reply.
empyreumaticadjective
In Zwaardemaker's historical odor classification, this describes a roasted or smoky smell, such as roasted coffee or creosote.
EMRabbreviation
An outdated, offensive special-education abbreviation labeled students with intellectual disabilities according to assumed limits on academic learning.
EMSAMnoun
A brand name identifies a skin patch containing selegiline, a medicine used to treat depression.
emulationnoun
A learner understands another's goal and works toward that outcome without necessarily copying the person's exact actions.
enablingnoun
Helping or allowing another person's harmful behavior continue, often by protecting them from its consequences.
enacted social support (enacted support)noun
Help or comfort is actually provided through someone's relationships, rather than simply believed to be available.
enactionnoun
A plan or process is put into practice with guidance and support, without requiring complete automation.
enactive representationnoun
In Bruner's theory, knowledge is represented through actions and movements, especially in early childhood.
enactmentnoun
Recreating or acting out key relationship experiences in therapy can reveal feelings and patterns that words alone miss.
enantiodromianoun
In Jung's theory, psychological tendencies can develop opposing tendencies, reflecting a proposed movement between mental opposites.
enantiomersnoun
Two molecules share the same chemical makeup but have mirror-image arrangements that cannot be perfectly overlaid.
encapsulated end organnoun
A sensory nerve ending has a surrounding tissue capsule that helps it respond to signals such as touch or pressure.
encapsulationnoun
Some people keep a delusion, a fixed false belief, separate from daily thinking and behavior.
encéphale isolénoun
A historical animal research preparation separates the spinal cord from the medulla while preserving the brain's usual sleep and waking pattern.
encephalitisnoun
Brain swelling, usually from a virus, that can cause fever, confusion, seizures, and even coma.
encephalitis lethargicanoun
A brain inflammation illness associated with historical epidemics can cause extreme sleepiness, reduced motivation, and problems moving the eyes.
encephalizationnoun
A species has a larger brain than expected for its body size when compared with a relevant animal group.
encephalocelenoun
A condition present at birth allows brain tissue to extend outward through an opening in the skull.
encephalofacial angiomatosisnoun
A condition present at birth involves unusual blood vessels affecting the face and brain and sometimes the eyes.
encephalomalacianoun
Brain tissue softens as it deteriorates, often after an area receives too little blood.
encephalomyelitisnoun
Inflammation affects both the brain and the spinal cord, sometimes because of infection or an immune response.
encephalonnoun
Another name for the brain identifies the nervous system organ inside the skull that supports thought, sensation, and bodily control.
encephalopathynoun
A broad brain disease that changes brain function or structure, often causing confusion and other mental changes.
encephalopsynoun
A person associates colors with experiences such as seeing letters or numbers, noticing smells, or sensing other qualities.
encodingnoun
Turning sights, sounds, or ideas into a form the brain can store in memory.
encoding specificityphrase
Memory is easiest to recall when the setting or cues match what was present while learning it.
encoding strategyphrase
A way of using thoughts or actions to put new information into memory for later recall.
encoding variability theorynoun
One explanation proposes that spaced study stores information with different contexts, giving memory more ways to retrieve it.
encopresisnoun
A child developmentally aged four or older repeatedly passes stool somewhere other than a toilet, often with constipation.
encounternoun
A direct meeting or interaction between people, often involving face-to-face contact.
encounter groupnoun
A facilitated group encourages personal growth through open emotional exchanges and attention to how members relate in the present.
encounter movementnoun
A movement popular during the 1960s promoted small group exercises intended to increase awareness, personal growth, and connection.
enculturationnoun
People learn the values, customs, beliefs, and behaviors of their own cultural community, beginning early in life.
end brushnoun
The end of an axon, a nerve cell's outgoing extension, divides into many fine branches.
end feetnoun
These are the tips of extensions from axons or astrocytes, which are supporting cells in the nervous system.
end of lifenoun
The period when death approaches involves emotional, social, practical, and care concerns for a person and those around them.
end organnoun
A specialized structure at a nerve ending receives sensory information or helps transmit motor signals to muscle.
end platenoun
A specialized patch on a muscle cell's surface receives chemical signals from a nearby motor nerve ending.
end spurtnoun
Performance or productivity sometimes rises as someone approaches the finish of an activity or working period.
end-aversion biasnoun
People favor middle ratings and avoid a scale's endpoints, potentially hiding real differences in what they judge.
end-stage renal diseasenoun
Chronic kidney disease has progressed so far that dialysis or a transplant is needed to sustain life.
end-stopped cellnoun
A visual brain neuron responds best to certain line lengths or corners and responds less when they extend farther.
endarterectomynoun
Surgeons remove fatty plaque from inside an artery to widen the opening and improve blood flow.
endemicadjective
A disease or other condition is regularly present within a particular population or geographical area.
endo- (end-)prefix
This word part indicates that something lies inside or comes from within another structure or system.
endocannabinoidnoun
A natural brain chemical that binds cannabinoid receptors and helps control mood, pain, appetite, and memory.
endocarditisnoun
Inflammation affects the tissue lining the heart's interior, often including its valves, and commonly results from infection.
endocastnoun
A model of the space inside a skull helps researchers estimate the brain's size and outer shape.
endocochlear potentialnoun
A steady voltage of about positive 80 millivolts exists in the fluid inside the cochlea's middle chamber.
endocrineadjective
Describing glands or cells that send hormones through blood to affect faraway parts of the body.
endocrine disruptornoun
A natural or manufactured chemical interferes with hormone signals by copying, blocking, or changing their usual activity.
endocrine glandphrase
A ductless body organ that releases hormones into blood to affect distant parts.
endocrinologynoun
This scientific and medical field studies hormones, the glands that release them, and disorders affecting their functions.
endodermnoun
An embryo's innermost main cell layer develops into digestive and respiratory linings and parts of several glands.
endogamynoun
A marriage custom involves choosing a spouse from within one's own religious, social, or kinship group.
endogenousadjective
Describes a variable whose value is shaped by other variables inside the same model or system.
endogenous attentionnoun
A person deliberately directs and maintains their focus according to their own goals or intentions.
endogenous cannabinoid (eCB)noun
A substance made by the body activates cannabinoid receptors and helps regulate nerve signaling and other bodily processes.
endogenous cuenoun
A signal guides someone to deliberately focus on a location, often by using a symbol such as an arrow.
endogenous depressionnoun
A historical label describes depression without an obvious outside stressor and suggests a biological or inherited cause.
endogenous opioidphrase
A body-made brain chemical that reduces pain and can create feelings of pleasure.
endogenous oscillatornoun
An internal network of nerve cells generates repeating patterns of activity that can organize bodily functions or behavior.
endogenous researchnoun
An investigation relies on information from within the system being studied while leaving independent outside information out of account.
endogenous rhythmnoun
A repeating pattern in bodily or psychological activity arises within an organism and may be adjusted by environmental signals.
endogenous smilenoun
A young infant spontaneously lifts the mouth's corners during rapid eye movement sleep, without a social trigger.
endogenous thyrotoxicosisnoun
Excess thyroid hormone originating inside the body causes a condition that can include nervousness, trembling, and a racing heart.
endogenous variablephrase
An outcome variable whose value is explained by other variables inside the model being studied.
endolymphnoun
A fluid fills the inner ear's membranous chambers and supports the sensory processes involved in hearing and balance.
endolymphatic potentialnoun
Fluid in the cochlea's middle chamber maintains an electrical voltage roughly 80 millivolts above the surrounding fluid.
endometriosisnoun
Tissue resembling the uterine lining grows elsewhere in the body and can cause inflammation, pain, and fertility difficulties.
endometriumnoun
The uterus has an inner tissue lining that changes during menstrual cycles and can support an implanted embryo.
endomorphnoun
Sheldon's historical personality theory used this category for a rounded, soft body build, proposing links with comfort seeking and sociability.
endomorphinnoun
A member of a small opioid peptide group acts at mu opioid receptors and is involved in reducing pain signals.
endomusianoun
A person mentally recreates music, such as a tune, without needing to hear it played aloud.
endophasianoun
A person mentally produces or recreates spoken words without saying them out loud.
endophenotypenoun
A measurable, heritable characteristic may help researchers connect genetic differences with vulnerability to psychological or neurological disorders.
endoplasmnoun
The inner, relatively fluid portion of a cell's cytoplasm occupies much of its interior but excludes the nucleus.
endoplasmic reticulum (ER)noun
A membrane network inside cells helps make and process proteins and fats for use within or beyond the cell.
endopsychicadjective
Something described this way occurs within the mind, including processes or contents outside conscious awareness.
endopsychic structurenoun
Psychoanalytic theories propose an internal organization of mental functions, such as Freud's id, ego, and superego.
endoradiosondenoun
A tiny recording device placed inside a nonhuman animal transmits radio signals for research on internal processes or behavior.
endorphinnoun
A natural brain chemical that lowers pain and can create pleasure during stress or hard exercise.
endosomatic currentnoun
An electrical current originates within a living organism through its own biological activity.
endothermnoun
An animal relies mainly on heat generated by its own metabolism to regulate its body temperature.
endowment effectnoun
People tend to value something more highly when they own it or feel it belongs to them.
endurance activitynoun
Sustained physical effort relies mainly on oxygen use to supply muscles with energy over an extended period.
enemanoun
Liquid is introduced through the anus into the rectum for bowel emptying, testing, or medicine delivery.
enema addictionnoun
A person becomes reliant on enemas for bowel emptying, sometimes as part of an eating disorder.
energization theorynoun
This theory proposes that effort toward a goal depends on how valuable and achievable the person thinks it is.
energy drinknoun
A beverage marketed to boost alertness or stamina usually contains caffeine and may include sugar or other ingredients.
energy-flow systemnoun
Connected parts transform energy into forms other parts can use, allowing energy to move through the whole system.
enervateverb
To weaken someone or something is to reduce their strength or available energy.
engendering psychologynoun
This approach develops psychology with attention to gender and its influence on people's experiences.
engineering anthropometrynoun
Measuring body size, movement, and balance helps designers create and evaluate equipment that fits human users.
engineering controlsnoun
Physical changes to equipment or workplaces prevent hazards or reduce people's exposure to them.
engineering modelnoun
This view proposes that living beings can be understood as machines whose interacting parts produce their actions.
engineering psychologynoun
This field applies knowledge about human thinking and behavior to designing products, systems, and spaces people use.
English as a second language (ESL)phrase
Classes that teach English to students whose first language is different, so they can later learn other subjects.
engramnoun
A proposed physical trace in the brain represents information retained from an experience.
engulfmentnoun
Intense anxiety involves feeling overtaken by an outside force or fearing that closeness will erase one's independence and identity.
enhancementnoun
A change that makes something better, stronger, or more valuable than it was before.
enjoymentnoun
A feeling of strong pleasure and happiness during or after something satisfying or successful.
enkephalinnoun
A naturally produced opioid peptide attaches to opioid receptors and helps reduce pain signals.
Enlonnoun
This brand name identifies edrophonium, a briefly acting drug that slows acetylcholine breakdown and strengthens nerve signaling to muscles.
enmeshmentnoun
A family pattern where people are too involved in each other's lives, weakening personal boundaries and independence.
enrichmentnoun
Adding helpful, challenging features to a job or setting so people feel more interested and work better.
enrichment programnoun
Additional learning activities broaden children's education, supporting those facing learning barriers or offering greater depth for gifted learners.
entelechynoun
In philosophy, this concept describes the realization of a being's potential as its actual, fulfilled nature.
enteric virus infectionnoun
An illness is caused by enteroviruses, which reproduce in the digestive tract but may affect other body systems.
enterogastronenoun
An intestinal hormone reduces stomach juice release when food leaving the stomach reaches the small intestine.
enthusiasmnoun
Strong excitement and eager interest in something can boost attention, effort, and persistence.
entitativitynoun
The degree to which observers see a collection of people as one organized, connected group varies with its apparent unity.
entitlementnoun
An unfair belief that you deserve special treatment or rewards without earning them.
entitlement programnoun
A U.S. government program guarantees specified benefits to people who satisfy eligibility conditions established by law.
entity theorynoun
A person believes that psychological qualities, such as intelligence or personality, are fixed and cannot be developed through effort.
entopticadjective
A visual experience described this way arises from processes inside the eye rather than from an outside object.
entorhinal cortexnoun
A temporal-lobe brain area that helps the hippocampus form memories and guides spatial navigation.
entrainmentnoun
An outside timing cue adjusts a biological rhythm so that it follows a recurring environmental pattern.
entrapmentnoun
Someone feels unable to stop investing in a failing effort because stopping would make earlier investments seem wasted.
entrepreneurshipnoun
Starting and running a business while taking financial risks in hopes of later profit.
entropynoun
Increasing disorder or loss of structure in a closed system that is cut off from new input.
enucleationnoun
A whole organ or distinct tissue mass is surgically removed while surrounding structures are preserved.
enuresisnoun
Repeated peeing in clothes or bed after age 5, not caused by illness or medicine.
envelopenoun
A smooth overall pattern of how a sound's loudness changes over time or across frequencies.
environmentnoun
All the outside physical, social, and cultural conditions that affect how a person or animal functions.
environmental aestheticsnoun
This area studies how features of natural settings and other surroundings influence judgments of beauty and visual appeal.
environmental agnosianoun
Following certain brain injuries, a person cannot recognize places or surroundings that were previously familiar.
environmental approachnoun
Therapy addresses outside pressures or changes everyday surroundings to reduce emotional difficulties and improve daily functioning.
environmental assessmentnoun
An evaluation examines how someone's surroundings and social circumstances influence behavior, difficulties, or well-being.
environmental attitudesnoun
People's beliefs, feelings, and values about nature and ecological issues shape how they judge environmental concerns.
environmental attributionnoun
An explanation assigns behavior or an outcome to outside circumstances, such as chance or social pressure.
environmental cognitionnoun
People process information about everyday surroundings, including remembering places and figuring out routes.
environmental constraintnoun
A feature of someone's circumstances limits opportunities to develop abilities, act independently, or use skills they already have.
environmental control devicenoun
An assistive device lets someone operate features of their surroundings, such as lighting, doors, or household appliances.
environmental deprivationnoun
A lack of opportunities for learning, play, and social connection can limit mental and behavioral development.
environmental designnoun
Planning spaces for living, working, and recreation aims to make them comfortable, usable, and suited to people's needs.
environmental determinismnoun
This view claims that surroundings and experience explain most or all psychological traits and behavior, with little biological influence.
environmental educationnoun
Teaching and learning activities build understanding of ecological problems and encourage actions that protect the natural world.
environmental enrichmentnoun
Adding opportunities for exploration, activity, and social contact makes surroundings more stimulating and can support learning and natural behavior.
environmental fieldnoun
In Gestalt psychology, an event belongs to a whole surrounding context whose elements interact with it.
environmental hazardsnoun
Conditions in the surroundings can threaten health or safety and contribute to physical or psychological stress.
environmental interventionnoun
A planned change to surroundings aims to influence what people do.
environmental justicenoun
Fair treatment means no population group carries an unfair share of environmental dangers or unhealthy surroundings.
environmental load theorynoun
This theory proposes that people filter out some surrounding information when incoming stimulation exceeds their processing capacity.
environmental manipulationnoun
Changing a person's living conditions aims to improve well-being, sometimes by arranging a more supportive residence.
environmental modificationsnoun
Changes to a home accommodate a person's disability and make independent daily activities easier.
environmental noisenoun
Incidental information in the surroundings can obscure important sensory patterns and may be filtered out as perception develops.
environmental press–competence modelnoun
This model proposes that adaptation depends on the fit between environmental demands and a person's abilities to meet them.
environmental psychologyphrase
Studies how physical surroundings like noise, crowding, lighting, and nature affect behavior and well-being.
environmental psychophysicsnoun
Researchers measure how physical conditions in everyday surroundings relate to what people notice and how intense sensations feel.
environmental sounds agnosianoun
A person has difficulty identifying everyday nonverbal sounds despite being able to hear them.
environmental stressphrase
Stress caused by things in a person's physical and social surroundings.
environmental stress theorynoun
This theory proposes that automatic bodily responses and thinking jointly shape whether surroundings seem threatening and trigger stress or coping.
environmental therapynoun
Treatment improves mental well-being by changing how someone interacts with their physical surroundings, social surroundings, or both.
environmental tobacco smokenoun
People nearby can inhale tobacco smoke released from burning tobacco or breathed out by someone smoking.
environmentalismnoun
This view gives surroundings and learning the main role in shaping behavior and differences between people.
envynoun
A painful feeling of wanting someone else's qualities or success and resenting that they have them.
enzymenoun
A protein speeds body chemical reactions without being used up or permanently changed.
enzyme inductionnoun
A substance increases enzyme production or activity, often speeding the body's breakdown of certain medicines.
enzyme inhibitionnoun
A substance reduces an enzyme's activity, sometimes slowing medicine breakdown and increasing the amount remaining in the body.
EOGabbreviation
The abbreviation commonly means electrooculography, which tracks eye movement through electrical measurements, or electrooculogram, the resulting record.
eonismnoun
An obsolete label described expressing gender through dress or roles that society assigned to another gender.
EPabbreviation
An evoked potential is a measurable electrical response within the nervous system following a sensory stimulus.
epenanoun
A hallucinogenic powder made from Virola tree bark is traditionally taken as snuff in parts of South America.
ependymanoun
A thin cellular lining covers the brain's fluid-filled chambers and the spinal cord's central channel.
ependymal cellnoun
This supporting nervous system cell forms part of the lining around internal fluid spaces and helps move cerebrospinal fluid.
ependymomanoun
A tumor develops from cells associated with the fluid-space lining inside the brain or spinal cord.
ephebophilianoun
This describes sexual attraction focused on people in middle to late adolescence.
ephedranoun
A plant used in herbal preparations contains stimulants that can increase alertness, anxiety, and cardiovascular activity.
ephemeraladjective
Something lasts for only a brief time before fading or disappearing.
EPIabbreviation
A questionnaire that measures Eysenck's personality traits, especially extraversion and neuroticism.
epi-prefix
This word beginning can indicate something above, upon, nearby, following, or added to something else.
epicriticadjective
This describes skin sensation that distinguishes fine differences in touch or temperature.
epidemicadjective
A disease or disorder affects more people than expected within a particular community, region, or period.
epidemic catalepsynoun
A historical concept describes several people developing prolonged immobility and fixed postures, attributed to imitation or identification with others.
epidemic hysterianoun
An older label describes unusual feelings, beliefs, symptoms, or behavior spreading through a group under social influence.
Epidemiologic Catchment Area Survey (ECA Survey)noun
This major American study from the 1980s measured mental disorder frequency, service use, and unmet needs in selected communities.
epidemiologynoun
Examines how often disorders happen in groups and what factors are linked with them.
epidermisnoun
The body's outer skin layer provides a protective covering and contains no blood vessels.
epididymisnoun
A coiled tube beside each testis stores sperm and allows them to mature before entering the sperm duct.
epidural hematomanoun
Bleeding between the skull and dura mater, the brain's outer covering, usually caused by head injury.
epidural hemorrhagenoun
Bleeding occurs between the skull and the brain's tough outer protective membrane, often following a head injury.
epigastric reflexnoun
A spinal reflex pulls the upper middle belly wall inward when skin below the nipple receives a quick downward stroke.
epigenesisnoun
Development builds increasingly specialized structures and abilities through successive changes involving interacting genetic and environmental influences.
epigenetic landscapenoun
Waddington's visual model presents development as branching routes, with some outcomes more likely and pathways shaped by genes and surroundings.
epigenetic theorynoun
This philosophical proposal holds that mind and consciousness emerged as living systems became sufficiently complex.
epigeneticsnoun
Studies chemical tags on DNA that change gene activity without changing the DNA code itself.
epilepsynoun
A chronic brain disorder causes repeated seizures from unusual electrical activity, sometimes with confusion or loss of consciousness.
epilepsy surgerynoun
A brain operation aims to reduce or stop difficult-to-control seizures by removing tissue responsible for starting them.
epileptic crynoun
A brief involuntary sound can occur when chest and voice-box muscles suddenly tighten as a tonic–clonic seizure begins.
epileptic furornoun
A historical label described rare episodes of intense rage or agitation that were attributed to epilepsy.
epileptiformadjective
A symptom or electrical pattern resembles features associated with epileptic seizures.
epileptiform seizurenoun
An episode looks like an epileptic seizure, although its appearance alone does not establish its cause.
epileptogenicadjective
A factor, substance, or brain condition can cause or help generate epileptic seizures.
epileptogenic focusnoun
A localized brain region generates abnormal electrical activity that starts a seizure.
epileptogenic lesionnoun
An area of damaged or abnormal brain tissue causes epileptic seizures, sometimes long after the damage occurs.
epimenorrhagianoun
In the supplied usage, this describes menstrual blood loss that exceeds the usual amount.
epinephrinenoun
A stress chemical and messenger that prepares the body for quick action during fear or excitement.
epiphanynoun
A sudden insight brings a meaningful new understanding of yourself, another person, or the world.
epiphenomenalismnoun
This philosophical view proposes that physical processes produce mental experiences, while those experiences cannot cause physical changes.
epiphenomenonnoun
A secondary result of a process is considered unable to influence the process that produces it.
epiphoranoun
Tears overflow onto the face because drainage is insufficient or tear production exceeds what the eyes can drain.
episodenoun
A distinct period when symptoms appear and form a separate spell of illness.
episodic amnesianoun
Memory for particular personal events is lost or becomes inaccessible, sometimes with recall returning and disappearing again.
episodic buffernoun
A short-term mental workspace that joins sights, sounds, and order into one event-like memory.
episodic disordernoun
A condition produces symptoms during separate periods, with intervals between episodes.
episodic memorynoun
Memory for events you personally lived, including what happened, where, when, and that it happened to you.
epistemicadjective
Describing something related to knowledge, especially how people know or justify what they believe.
epistemic valuenoun
The worth of an idea or thinking process depends on how well it supports accurate knowledge.
epistemologynoun
This area of philosophy examines what knowledge is, how we obtain it, and what justifies believing something.
epistemophilianoun
A strong love of knowing motivates someone to explore, investigate, and ask questions.
epithalamusnoun
A small brain region containing the pineal gland and habenula helps regulate daily rhythms and responses to outcomes.
epitheliomanoun
A tumor arises from epithelial cells, which cover body surfaces and line many internal spaces.
epitheliumnoun
A layer of closely packed cells covers body surfaces and lines internal spaces and organs.
EPPabbreviation
An end-plate potential is an electrical change in a muscle cell triggered by a nearby motor neuron's chemical signal.
EPPSabbreviation
A personality test called the Edwards Personal Preference Schedule measures a person's needs and preferences.
EPQabbreviation
The Eysenck Personality Questionnaire measures self-reported extraversion, emotional instability, and a historically named personality dimension called psychoticism.
EPSabbreviation
Extrapyramidal symptoms are medication-related movement problems, such as stiffness, shaking, muscle spasms, or a strong need to move.
EPSDTabbreviation
This Medicaid benefit covers preventive checks, evaluation, and needed treatment for eligible people under 21, including mental health care.
epsilon alcoholismnoun
Jellinek's historical category describes repeated heavy drinking episodes separated by weeks or months without alcohol.
epsilon movementnoun
Apparent motion can occur when a pale line against darkness switches to a dark line against light.
EPSPabbreviation
An excitatory postsynaptic potential is a brief electrical change caused by incoming neural signals that makes a neuron likelier to fire.
Epstein–Barr virus (EBV)noun
A common herpesvirus often causes mild childhood infections and can cause mononucleosis, especially in teenagers and young adults.
EQabbreviation
An educational quotient compares educational age with actual age, while an emotional intelligence quotient summarizes measured emotional abilities.
Equal Employment Opportunity Commission (EEOC)noun
A United States government agency enforces federal protections against discrimination in hiring and employment.
equal loudness contournoun
A graph connects sound pressure levels at different frequencies that listeners judge equally loud relative to a fixed 1,000-hertz tone.
equal opportunitynoun
A fairness principle supports access to jobs, education, and services without discrimination based on protected personal characteristics.
equal rights amendment (ERA)noun
A proposed change to the United States Constitution would guarantee legal equality regardless of sex.
equal sense-difference methodnoun
Researchers adjust pairs of sights, sounds, or other sensations until people judge the differences within each pair equally large.
equal weightingnoun
Each component receives the same multiplier when several measurements are combined into a total score.
equal-and-unequal-cases methodnoun
Participants repeatedly compare paired stimuli from a fixed set and decide whether they seem equal or different.
equal-appearing-intervals methodnoun
People adjust stimulus pairs so the perceived difference within every pair seems the same size.
equality lawnoun
A Gestalt principle proposes that visual parts judged equal tend to be perceived together as one group.
equality of variancenoun
Different groups have the same average squared spread of scores around their own means.
equality stagenoun
Piaget proposed a childhood stage, roughly ages eight to ten, when fairness means treating everyone alike.
equated scorenoun
A test result is converted so its score distribution matches selected features of another test's distribution.
equationnoun
A math statement showing two amounts or expressions are equal, often used to model relationships between variables.
equilibrationnoun
Children regain mental balance by fitting new experiences into old ideas or changing those ideas.
equilibratory sensenoun
The ability to sense balance helps maintain body position and depends partly on motion detectors inside the ears.
equilibriumnoun
A stable balance where a person or system stays steady unless something pushes it to change.
equilibrium model of group developmentnoun
A theory proposes that groups change over time while repeatedly returning toward balance between competing needs or forces.
equilibrium potentialnoun
A membrane voltage exactly balances a particular ion's concentration-driven movement, leaving no net flow of that ion.
equilibrium-point modelnoun
A movement theory proposes that the nervous system sets a limb's destination by specifying a balance between opposing muscles.
equine-assisted psychotherapy (EAP)noun
A mental health professional and horse specialist include guided activities with horses in psychological treatment.
equipercentile methodnoun
Researchers link scores on two measures by matching positions with the same percentage of scores falling below them.
equipment automationnoun
The degree of independent machine operation indicates how little direct human involvement its tasks require.
equipment designnoun
Designers shape tools, machines, displays, and controls around human abilities and needs for safe, comfortable, efficient use.
equipotentialitynoun
Lashley's historical hypothesis proposed that broad brain regions share abilities, allowing remaining areas to take over lost functions.
equity stagenoun
Piaget proposed a stage, beginning around eleven, when children judge fairness by considering people's circumstances and intentions.
equity theoryphrase
People judge fairness by comparing what they get from work with what they put in, and with others.
equivalencenoun
Two measures are interchangeable when they give the same meaning or result.
equivalence classnoun
A learned stimulus group allows self-matching, reversed matching, and matching through linked members, supporting substitution among them.
equivalence paradoxnoun
Different methods can produce surprisingly similar results despite starting from different assumptions or using different procedures.
equivalency testnoun
An assessment checks whether someone's knowledge meets an educational standard, even without completing the usual courses.
equivalent formnoun
A different version of a test uses other questions designed to match its content and measurement properties.
equivalent stimulusnoun
A cue can substitute for another within learned relationships that support self-matching, reversed matching, and matching through linked cues.
equivalent-forms reliabilitynoun
The correlation between scores on comparable test versions indicates how consistently those versions measure the same ability or characteristic.
equivalents methodnoun
A participant changes a comparison stimulus until it seems to match a fixed reference stimulus.
equivocal death analysisnoun
Investigators reconstruct someone's mental state before death to help understand unclear circumstances surrounding how the person died.
equivocal signnoun
A subtle observation may suggest a neurological problem but also occurs in people without such problems.
ERabbreviation
A brain signal measured after a specific stimulus, showing how the nervous system reacted.
ERAabbreviation
A proposed U.S. constitutional change to guarantee equal legal rights regardless of sex.
erectadjective
Something stands upright or vertical, especially when describing body posture or the position of hairs.
erectile dysfunctionnoun
Trouble getting or keeping an erection firm enough for sex, often from body or stress causes.
eremophilianoun
An older clinical label describes a desire for solitude considered extreme enough to disrupt a person's life.
erethismnoun
Unusually strong sensitivity or excitability makes sensory input or emotional events provoke heightened reactions, sometimes including irritability.
ERFabbreviation
An event-related magnetic field is a measurable change in brain magnetism linked to a specific mental event.
ERGnoun
An inborn motive that pushes a person toward certain goals and supplies the energy to pursue them.
ERG theoryphrase
A work motivation idea that groups needs into survival, relationships, and personal growth.
ergasiologynoun
Adolf Meyer's historical approach explains behavior through interacting biological, psychological, and social influences on the whole person.
ergativenoun
A verb allows the same affected thing to appear as its object or subject, as with melting butter.
ergic traitnoun
A motivational personality trait drives a person to work toward a particular goal.
ergodicitynoun
A process has this property when averages across individuals match averages from one individual observed over a sufficiently long time.
ergographnoun
An instrument records muscular work across repeated efforts, allowing researchers to examine work capacity and fatigue.
ergomanianoun
A compulsive drive to work excessively makes stopping difficult and can strain health and relationships.
ergometrynoun
The amount of physical work muscles perform is measured while task demands vary.
ergonomic trapsnoun
Design features that conflict with human habits or abilities make mistakes and accidents more likely.
ergonomicsnoun
This field designs tools, tasks, and systems around human strengths and limits to support safe, effective use.
ergonovinenoun
An ergot-derived medicine stimulates uterine contractions and is used to help control bleeding after childbirth.
ergot alkaloidnoun
A biologically active chemical from grain-infecting ergot fungi can affect circulation, muscle activity, or mental functioning.
ergot derivativenoun
A substance obtained from or developed using ergot alkaloids can affect nerve signaling, blood vessels, or uterine muscles.
ergotaminenoun
An ergot-based medicine treats migraine attacks and can narrow blood vessels.
ergotherapynoun
In this usage, treatment uses muscular exercise to help manage illness or restore functioning.
ergotropicadjective
This describes a capacity or tendency to spend energy on activity, effort, or work.
Erhard Seminar Training (est; EST)noun
A controversial group training program introduced by Werner Erhard in 1971 claimed to expand awareness and encourage personal change.
Erichsen’s diseasenoun
A historical diagnosis described back pain and other symptoms following railway accidents, with debated physical and psychological explanations.
Ericksonian psychotherapynoun
A therapy developed by Milton Erickson uses hypnosis, indirect suggestions, and stories to help people access personal resources.
Eriksen flankers tasknoun
An attention test asks people to choose a response to a target while nearby distractors suggest matching or conflicting responses.
Erikson’s eight stages of psychosocial developmentnoun
Erik Erikson proposed that identity develops through eight life stages, each involving a central challenge in relating to oneself and others.
ERISAabbreviation
A 1974 United States federal law established protections for participants in private employer pension and benefit plans.
erogenous zonenoun
A body area can produce sexual feelings or pleasure when stimulated.
Erosnoun
Freud proposed a life-oriented drive supporting survival, sexuality, connection, and growth.
erosionnoun
Gradual wearing away of a body surface or other material from repeated use, pressure, or irritation.
erotic asphyxiationnoun
Sexual pleasure or arousal is linked to restricted breathing during sexual activity, a practice that can be fatal.
erotic delusionnoun
A firmly held false belief says another person loves you or has shared a sexual relationship with you, despite contrary evidence.
erotic feminismnoun
A feminist perspective views women’s sexual expression as a way to challenge exploitation and male control.
erotic instinctnoun
Psychoanalytic theories propose a drive toward sexual satisfaction, sometimes broadened to include survival, love, and growth.
erotic lovenoun
Some classifications describe a form of love marked by strong sexual excitement.
erotic paranoianoun
An older diagnostic label describes persistent delusions that someone loves the person or has shared a sexual relationship with them.
erotic plasticitynoun
Sexual desires and behaviors differ in how much they are influenced by culture, social experiences, and circumstances.
erotic pyromanianoun
Sexual excitement is associated with watching large fires or setting them.
erotic typenoun
Freud’s historical personality classification proposed a type focused on giving and receiving love, with sexual energy centered in the id.
eroticanoun
Art, writing, or other creative material explores sexuality and sexual love in ways that can stir feeling or arousal.
eroticismnoun
Sexual excitement or pleasure can be experienced personally or expressed through qualities, themes, and images in art.
eroticizationnoun
A body area, bodily function, object, or activity becomes associated with sexual pleasure or meaning.
erotismnoun
Sexual pleasure and arousal, or their expression in artistic material, are described by this alternative name for eroticism.
erotizationnoun
Sexual pleasure or significance becomes attached to a bodily region, function, sensation, or activity.
erotogenesisnoun
Classical psychoanalysis proposed that sexual impulses arise from bodily sources, including the mouth, anus, and genitals.
erotogenicadjective
This describes something that can bring about sexual feelings or bodily sexual responses.
erotogenic masochismnoun
Freud’s theory proposed that some aggressive or death-directed energy remains aimed inward after becoming bound with sexual energy.
erotographomanianoun
An older term describes a difficult-to-control urge to repeatedly write sexual material or create sexual drawings.
erotolalianoun
Sexually explicit or obscene speech is used especially to increase pleasure during sexual activity.
erotomanianoun
Someone holds a fixed, false conviction that another individual romantically loves them or previously shared sexual intimacy with them.
erotomanic delusionnoun
An unshakable false belief involves another person’s love or an imagined sexual relationship, even when evidence contradicts it.
erotophonophilianoun
Sexual arousal is associated with murdering another person, particularly a sexual partner.
ERPabbreviation
A therapy for OCD that exposes feared triggers while stopping the usual ritual response.
ERP measure of attitudesnoun
An event-related potential measure estimates attitudes from brain electrical responses when something appears among positively or negatively evaluated items.
ERP measures of intelligencenoun
Event-related potential measures examine brain electrical responses to tasks or stimuli for patterns associated with intelligence test performance.
errornoun
A mismatch between what was observed, remembered, or measured and what is actually true or expected.
error analysisnoun
A systematic investigation examines how human abilities, actions, and equipment design contribute to mistakes during work or system operation.
error methodnoun
A perception research method lets participants adjust a changing stimulus until it seems to match a fixed comparison.
error of anticipationnoun
During gradually increasing sensory tests, someone reports detecting a stimulus because they expect it, before actually sensing it.
error of commissionnoun
A mistake occurs when someone takes an incorrect action or adds an unnecessary one.
error of habituationnoun
During stepwise sensory testing, someone keeps giving the same detection answer after the changing stimulus should prompt a different answer.
error of omissionnoun
A mistake occurs because someone leaves out an action needed to complete a task correctly.
error of refractionnoun
The eye bends incoming light so that it fails to focus accurately on the retina, making vision less clear.
error ratephrase
How often mistakes happen in a set of measurements, recordings, or statistical decisions.
error scorenoun
The gap between a person's obtained test score and the score predicted for them.
error sum of squaresnoun
A statistical total adds squared differences between observed values and their model predictions, measuring variation the model leaves unexplained.
error termnoun
A statistical equation includes this part to represent variation in an outcome that its predictors cannot explain.
error variancenoun
The part of a score caused by random influences and measurement mistakes, not the trait being measured.
error-choice techniquenoun
An indirect attitude test uses guesses on difficult factual questions, assuming people favor answers that match their views.
errorless learningnoun
A teaching method guides learners toward correct responses while preventing mistakes that might interfere with remembering.
erythema multiforme majornoun
An immune reaction, often following infection, causes a skin rash and affects moist linings such as the mouth.
erythro- (erythr-)prefix
This word part adds the meaning red to scientific and medical words.
erythropoietinnoun
A protein hormone made mainly by the kidneys signals bone marrow to produce more red blood cells.
erythropsianoun
A change in color vision makes things look unusually red or covered by a reddish tint.
Esalen Institutenoun
An educational center established in California in 1962 offers experiential workshops exploring personal growth, relationships, and well-being.
ESBabbreviation
Short for brain electrostimulation, this method applies electrical stimulation to selected brain regions to investigate their functions.
escalating aggressionphrase
Hostile behavior that grows more intense over time, sometimes ending in physical violence.
escalating commitmentnoun
People keep investing more resources in a failing plan, often hoping to recover what they already spent.
escape behaviorphrase
Actions or thoughts used to stop something unpleasant that is already happening right now.
escape conditioningphrase
Learning happens when a behavior ends something unpleasant right after it starts.
escape from freedomphrase
Erich Fromm proposed that people may seek relief from isolation by surrendering individuality and conforming to others.
escape from realityphrase
A person uses fantasy as a psychological defense against everyday difficulties or inner conflicts.
escape into illnessphrase
A historical psychoanalytic explanation proposes that symptoms or attention to physical complaints can unconsciously help someone avoid emotional conflict.
escape mechanismnoun
A psychological defense automatically reduces anxiety from conflict or stress, often without the person realizing it.
escape titrationnoun
In an experiment, an animal's response lowers a steadily intensifying unpleasant stimulus by a fixed amount.
escapismnoun
People turn toward enjoyable or comforting imagined experiences to take a break from real life.
Eskalithnoun
A brand name identifies lithium medication, a mood stabilizer used in treating bipolar disorder.
ESLabbreviation
This abbreviation names English instruction for learners whose first language is different, emphasizing practical language skills.
ESMabbreviation
The experience-sampling method collects reports of people's current thoughts and feelings at selected moments during everyday life.
esophageal speechnoun
Speech uses air released from the food pipe to vibrate nearby throat tissue instead of relying on the voice box.
esophorianoun
An eye tends to drift inward when the two eyes are prevented from combining their views into one image.
esotropianoun
An eye points inward toward the nose during viewing, leaving the eyes visibly out of alignment.
ESPabbreviation
Extrasensory perception is the proposed ability to learn about events without using known senses; its existence remains unestablished.
ESP cardsnoun
A deck of 25 cards, with five repeating symbols, is used to investigate claims of extrasensory perception.
ESP forced-choice testnoun
An experiment investigating extrasensory perception restricts guesses to listed options so accuracy can be compared with chance.
ESP free-response testnoun
An experiment investigating extrasensory perception allows unrestricted guesses, which judges compare with possible targets for similarity.
espantonoun
Some Latin American cultural traditions describe distress after a fright through the belief that a person's soul has departed.
esprit de corpsnoun
Group members share strong belonging, enthusiasm, commitment, and confidence in what they can accomplish together.
ESSabbreviation
An evolutionarily stable strategy resists replacement by rare alternatives and can involve a lasting mix of behaviors within a population.
ESSBabbreviation
Electrical brain self-stimulation lets an individual activate current through implanted electrodes, often to study the brain's reward systems.
essencenoun
The deepest qualities believed to make a person or thing what it truly is.
essential amino acidnoun
A protein building block must come from food because the body cannot make enough to meet its needs.
essential fatty acidnoun
A fat building block must be supplied by food because the body cannot produce it itself.
essential hypertensionphrase
High blood pressure with no clear medical cause, shaped by genes, habits, and stress.
essential propertynoun
A defining feature is necessary for something to be the kind of thing it is.
essential tremorphrase
An inherited shaking problem often affecting arms, head movements, or speech, usually without other serious brain signs.
essentialismnoun
A philosophical view holds that certain things have necessary core features that determine what they are.
ESTabbreviation
A shortened form for electroconvulsive therapy, a treatment that uses controlled electric current to trigger a seizure.
establishing operationnoun
An event increases a consequence's power to reinforce or punish behavior, changing the likelihood of related actions.
estazolamnoun
A benzodiazepine medicine helps treat insomnia over brief periods by slowing activity in the central nervous system.
esteem neednoun
In Maslow's theory, people seek achievement, competence, and respect to support their sense of personal worth.
Estes–Skinner procedurenoun
An experiment measures how a cue predicting something unpleasant reduces an ongoing behavior that normally earns a reward.
esthesiometry (aesthesiometry)noun
Researchers measure touch sensitivity by testing how light a contact someone notices or how closely spaced contacts remain distinguishable.
estimatenoun
A best guess about a group's true value based on the data you collected.
estimating functionnoun
A mathematical rule combines sample observations with an unknown population value to help estimate that value.
estimationnoun
Using sample data to roughly figure out a population value, while showing how uncertain the estimate is.
estimatornoun
A number computed from sample data to approximate the matching value in the whole population.
estimatorsnoun
Mental processes help a person judge how many items a collection contains.
estradiolnoun
A powerful naturally occurring estrogen hormone is produced chiefly in the ovaries, with other tissues also contributing.
estrangementnoun
Someone becomes emotionally distant from others, sometimes greatly reducing or ending contact with people who were once close.
estrogennoun
A member of this steroid hormone family helps regulate reproduction and sexual development, with additional effects throughout the body.
estrogen antagonistnoun
A substance weakens or blocks estrogen's effects in tissues that normally respond to this hormone.
estrogen replacement therapynoun
Treatment supplies estrogen to ease symptoms caused by reduced hormone production, including symptoms occurring around menopause.
estronenoun
A naturally occurring estrogen hormone is made in the ovaries and elsewhere and can be used medically.
estrous cyclenoun
Many female mammals undergo a repeating reproductive cycle that includes a period of increased readiness to mate.
estrusnoun
During this reproductive phase, a female mammal becomes sexually receptive and more likely to accept mating.
eszopiclonenoun
A nonbenzodiazepine sleep medicine treats insomnia by strengthening GABA's slowing effect on brain activity.
etanoun
A statistic showing how strongly two variables are related, even when the pattern is curved.
eta squarednoun
This effect size measures the share of total outcome variation associated with a factor or set of factors.
ethanolnoun
The alcohol in alcoholic drinks slows brain activity and can change mood, judgment, memory, and movement.
ethchlorvynolnoun
This older, fast-acting sleep medicine fell out of medical use because of serious safety problems and misuse potential.
ethernoun
This older anesthetic drug was used to produce unconsciousness during surgery and can alter perception as its effects develop.
etherealadjective
In historical smell classifications, this describes an odor category associated with fruity or wine-like smells.
ethical codephrase
A set of rules that guides psychologists to act responsibly and protect clients and research participants.
ethical conflictnoun
A situation where a psychologist faces competing duties or values and any choice may risk doing harm.
ethical consumerismnoun
People practice this by choosing what to buy and use according to their moral or social values.
ethical determinismnoun
This philosophical position proposes that truly knowing what is morally good necessarily leads a person to do it.
ethical dilemmaphrase
A person must choose between actions when two important moral rules point in different directions.
ethical imperativenoun
A moral rule or action is regarded as something a person must follow or carry out.
ethical judgmentnoun
A person decides what is morally right or wrong, often when competing values make the choice difficult.
ethical nihilismnoun
This philosophical position holds that no moral principles are valid.
ethical principle orientationnoun
In Kohlberg's proposed sixth stage, people judge actions using ethical principles they choose independently of group rules.
ethicsnoun
Shared rules about right and wrong behavior that guide decisions in research, practice, and everyday life.
ethics committeephrase
A mixed-profession group in an institution that advises on hard moral choices in patient care and policy.
ethics of animal researchnoun
These moral questions concern whether and how nonhuman animals should be studied, including their care and treatment.
ethinamatenoun
This older alcohol-derived sleep medicine has serious toxicity and misuse risks that limit its medical use.
ethmocephalynoun
This rare condition present at birth affects nasal development, often producing a tube-shaped nose with absent nostril openings.
ethmoid fossanoun
This small hollow in the skull base accommodates the olfactory bulb, a brain structure involved in smell.
ethnicadjective
Describing people who share a common culture, language, ancestry, and sometimes religion.
ethnic biasnoun
Unfair treatment based on ethnicity, or a test's unequal measurement across ethnic groups, can disadvantage people.
ethnic cleansingnoun
An organized campaign forcibly removes an ethnic population from an area, often through intimidation, detention, or killing.
ethnic driftnoun
A person's connection to an ethnic minority identity gradually changes or weakens, often through contact with a dominant culture.
ethnic groupnoun
People identify with shared cultural roots, which may include ancestry, language, traditions, or a common history.
ethnic identityphrase
A person's sense of who they are based partly on belonging to a particular ethnic group and its culture.
ethnic psychologynoun
This field examines how ethnic groups' cultural and social circumstances shape members' thoughts, experiences, and behavior within a society.
ethnic researchnoun
These studies investigate the backgrounds of people belonging to different ethnic, racial, and cultural groups.
ethnic socializationphrase
Parents and caregivers teach children about their ethnic group's values, pride, and ways to handle bias.
ethnicitynoun
A person's group membership based on shared culture, ancestry, and history, such as language, values, and traditions.
ethnocentrismnoun
Seeing your own cultural group as normal and better, then judging other groups by those standards.
ethnographic approachnoun
Researchers understand a community's way of living through extended residence, learning its language, observation, and participation.
ethnographynoun
Studying a culture by watching people in their real setting and often joining daily activities.
ethnolinguisticsnoun
This field explores how language connects with a community's culture, social life, and ways of understanding the world.
ethnologynoun
This field compares and analyzes human societies and cultures, including how they have developed through history.
ethnomethodologynoun
This approach studies the everyday rules and shared understandings people use to make social situations meaningful and orderly.
ethnopsychologynoun
This branch of psychology examines how ethnic communities' cultural, linguistic, and social settings influence members' experiences and behavior.
ethnopsychopharmacologynoun
This field investigates ethnic and cultural differences in how people use and respond to mind-affecting drugs, and why.
ethogramnoun
A detailed catalog describes an animal's observable actions, usually in its natural setting, without guessing their meaning.
ethologically oriented universalnoun
In Lonner's proposed classification, this is a psychological feature shared across cultures and linked to human evolutionary history.
ethologynoun
This science investigates animal behavior, especially in natural surroundings, using observation, comparison, and experiments.
ethosnoun
The characteristic values and attitudes of a person, group, place, or era give it a recognizable spirit.
ethosuximidenoun
This medicine belongs to the succinimide family and treats absence seizures, which briefly interrupt awareness.
ethotoinnoun
This medicine belongs to the hydantoin family and was developed to help control epileptic seizures.
ethyl alcoholnoun
Another name for ethanol, this drink ingredient slows brain activity and affects feelings, thinking, and coordination.
eticadjective
Using the same culture ideas across all groups, assuming they apply everywhere.
etiologynoun
The causes and course of a disorder over time.
Etrafonnoun
This medication name identifies a combination of amitriptyline and perphenazine historically used for depression occurring alongside anxiety.
ETSabbreviation
A major nonprofit organization that develops and gives many educational and professional tests.
etymologynoun
This study traces where words and meaningful word parts came from and how they changed over time.
eu-prefix
This word beginning contributes a meaning of good or well to the word it forms.
eudaimonic well-beingnoun
A sense of living well grows from meaningful purpose and developing one's abilities and potential.
eudemonia (eudaemonia)noun
Happiness or human flourishing serves as a guide to morality and a reason for acting in certain ways.
eudemonism (eudaemonism)noun
This philosophical view grounds morality in happiness or flourishing, treating actions that promote it as good.
euergasianoun
Adolf Meyer used this historical label for mental functioning, or combined mental and biological functioning, considered normal.
eugenicadjective
In historical heredity theories, this described an influence claimed to improve the inherited traits of future generations.
eugenicsnoun
This discredited ideology sought to reshape human inheritance by controlling reproduction according to biased judgments about desirable traits.
Euler diagramnoun
This drawing uses regions to show relationships among sets, displaying relevant overlaps without requiring every possible combination.
eumorphicadjective
In historical body-type classifications, this described a build judged to have typical proportions and structure, roughly resembling an athletic build.
eunuchnoun
This historical designation describes a person whose testes were removed, especially before puberty, affecting later physical development.
euphenicsnoun
These interventions change environmental conditions, such as diet, to reduce a genetic condition's effects without changing the underlying genes.
euphorianoun
An unusually intense feeling of happiness and well-being, often seen in mania or caused by drugs.
euphoriantnoun
A substance with this effect can produce intense happiness or a powerful feeling that everything is going well.
euphorogenicadjective
An event or medication with this property brings about unusually intense happiness and feelings of well-being.
eureka tasknoun
Researchers use this kind of problem to study sudden insight, with solutions that usually require an unexpected shift in thinking.
European Federation of Professional Psychologists’ Associations (EFPPA)noun
Founded in 1981, this federation brought national psychology organizations together to support European cooperation in training, practice, and research.
European Federation of the Psychology of Sport and Physical Activitynoun
A European organization, commonly called FEPSAC, connects national groups studying psychology in sports and exercise.
eurymorphnoun
In Eysenck’s proposed system, a broadly built person has a body-build index at least one standard deviation below average.
euryplasticadjective
In historical body classifications, this adjective describes a short, stocky build resembling Kretschmer’s pyknic category.
eusocialitynoun
An animal society combines shared care of young, overlapping generations, and division between breeding members and helpers.
eustachian tubenoun
An air passage connects the throat with the middle ear, helping keep pressure balanced across the eardrum.
eusthenicadjective
An older constitutional classification uses this adjective for a physique considered close to the athletic body type.
eustressnoun
A helpful kind of stress that comes from meaningful challenges and can improve growth, learning, and performance.
euthanasianoun
A deliberate action ends another person’s or animal’s life, usually with the intention of relieving severe suffering.
euthymianoun
A relatively steady, comfortable mood falls outside a manic or depressive episode.
evaluability assessmentphrase
A preevaluation review that clarifies a program's goals, key questions, and workable ways to measure results.
evaluationnoun
A careful judgment of how good, useful, or successful something is.
evaluation apprehensionphrase
Feeling nervous when others are watching may change behavior to seem better to them.
evaluation interviewnoun
A workplace discussion reviews an employee’s performance and may include feedback or goals for improvement.
evaluation objectivenoun
A specific purpose guides a program review, such as improving delivery or judging results.
evaluation researchnoun
Scientific studies examine how well programs or interventions address real-world problems.
evaluation utilizationnoun
People use findings from a program review to guide decisions, address problems, and apply useful solutions.
evaluative priming measurenoun
An indirect attitude test compares positive and negative judgment speeds after a brief cue to estimate feelings toward that cue.
evaluative ratingsnoun
Scores express how people judge objects on qualities such as beauty, pleasantness, or complexity.
evaluative reasoningnoun
Critical thinking judges how effective, meaningful, well-supported, or relevant something is.
evaluatornoun
A person who judges how well a group, project, institution, or person is doing and gives advice.
evaluator credibilitynoun
People affected by a program trust its reviewer’s knowledge, skills, fairness, and responsibility to varying degrees.
evasionnoun
In descriptions of illogical thinking, an expected next idea is replaced by a related idea that does not logically fit.
evenly hovering attentionnoun
A psychodynamic therapist listens openly to the client’s words and feelings without deliberately favoring particular details.
eventnoun
A happening with a clear start and finish that causes or marks some kind of change.
event history analysisnoun
Statistical methods examine how long events take to happen and which factors relate to their timing.
event memorynoun
Remembering happenings from your daily life draws on episodic memory, bringing back experiences tied to particular places and times.
event samplingnoun
An observer records each occurrence of a clearly defined behavior during a chosen observation period.
event spacenoun
In the supplied probability sense, this is the collection of possible outcomes that count as a particular event.
everyday creativitynoun
People develop fresh ideas and flexible solutions while handling ordinary tasks and situations.
everyday intelligencenoun
Practical thinking skills help people handle ordinary challenges, such as comparing prices or finding their way.
everyday racismnoun
Routine interactions and practices treat people unfairly because of their actual or perceived racial group.
evidence-based practice (EBP)phrase
Using the best research, therapist skill, and a client's culture and wishes to choose care most likely to help.
evil eyenoun
A cultural belief holds that an unfriendly or envious look can bring misfortune or illness.
evirationnoun
An outdated clinical label described a man’s delusional belief that his body had become female.
evocative therapynoun
Jerome Frank’s approach sought to change unwanted behavior by identifying and modifying the personal and environmental factors behind it.
evoked potential (EP)noun
A measurable electrical response arises in nervous tissue after a sensory stimulus, such as light or sound.
evolutionnoun
Over many generations, living things slowly change, helping explain how different species developed from earlier ancestors.
evolution of consciousnessnoun
Scientific accounts examine how the capacity for subjective experience emerged and changed across animal lineages over generations.
evolution of intelligencenoun
Thinking and problem-solving abilities change across generations as evolutionary processes shape how organisms meet environmental challenges.
evolution of the brainnoun
Brains emerged and diversified through inherited changes in animal nervous systems across many generations.
evolutionarily stable strategy (ESS)noun
A strategy, once common in a population, resists replacement by rare alternatives because they gain no lasting reproductive advantage.
evolutionary aestheticsnoun
In this theoretical sense, art develops through forces within artistic practice rather than through outside influences.
evolutionary developmental psychologynoun
This field uses evolutionary principles to explain human development, including how inherited tendencies interact with childhood environments.
evolutionary epistemologynoun
Philosophical approaches explain knowledge through biological evolution or through comparisons between how ideas and organisms survive.
evolutionary psychologynoun
This approach studies how natural selection may have shaped mental processes and behavior through challenges faced by ancestors.
evolutionary theoryphrase
Explains behavior and mental traits as shaped over generations because they helped ancestors survive and reproduce.
evolved mechanismnoun
A brain or mental system was shaped by natural selection because it helped ancestors survive or reproduce.
ex post facto designnoun
Researchers examine existing differences or past events to understand outcomes without assigning or controlling the earlier conditions.
ex post facto evaluationnoun
A review judges how well an established program has achieved its intended goals.
ex vivoadjective
Procedures occur outside the body using living tissue or cells recently removed from an organism.
ex-prefix
Placed before a word, it means outside, outward, or on the outer side.
ex-patient clubnoun
A support group offers social activities and recovery support to people after discharge from psychiatric hospital care.
EX/RPabbreviation
Exposure and response prevention helps people approach obsession triggers while practicing not performing compulsions, usually with therapist support.
exacerbationnoun
An existing illness, disorder, or symptom becomes more severe than it was before.
exact replicationnoun
Researchers repeat a study using procedures matched as closely as possible to check whether its findings occur again.
exact testphrase
Gives the exact chance of results this extreme if no real effect exists.
exaggerationnoun
Overstating traits or events, often to defend yourself or justify questionable behavior.
exaltationnoun
Intense elation occurs alongside restless activity and reduced restraint, sometimes during mania.
examinationnoun
A careful check of a person's body or mind to find health problems or symptoms.
exaptationnoun
An existing trait takes on a useful function different from the role for which it originally evolved.
exceptional childnoun
An educational label describes a child whose abilities or support needs differ substantially from those typical for their age.
exceptional creativitynoun
An ability to produce unusually original work makes important contributions to society.
exchange relationshipphrase
A relationship where each person gives benefits expecting something back, rather than helping with no strings attached.
exchange theorynoun
A view that relationships develop partly through people's comparisons of rewards, costs, and possible alternatives.
exchangeabilitynoun
A quality allows items, methods, or measures to work appropriately across different situations.
excitabilitynoun
How easily a neuron or muscle cell responds to stimulation by producing an electrical change.
excitantnoun
An agent, such as a substance or stimulus, can bring about a response.
excitationnoun
A nerve or muscle cell's electrical response to stimulation, especially when an action potential travels along it.
excitation patternnoun
Sound produces a distribution of activity across locations in hearing structures, especially the inner ear and auditory nerve.
excitation-transfer theorynoun
A theory proposes that leftover bodily arousal can strengthen a later emotion when its original source goes unrecognized.
excitatory conditioningnoun
Learning through pairing makes a cue predict an upcoming stimulus that naturally produces a response.
excitatory fieldnoun
A brain region around an activated sensory area participates in that area's response.
excitatory gradient (excitation gradient)noun
A graph shows how a learned tendency to respond varies with a stimulus's resemblance to the trained stimulus.
excitatory neurotransmitterphrase
A chemical messenger that makes the next neuron more likely to fire an electrical signal.
excitatory postsynaptic potential (EPSP)noun
A brief voltage change caused by incoming communication makes a receiving neuron more likely to fire.
excitatory synapsenoun
A junction between neurons passes signals that make the receiving neuron more likely to fire.
excitatory thresholdnoun
The minimum strength of stimulation needed to start a nerve impulse marks this threshold.
excitatory–inhibitory processesnoun
Nervous system processes increase or decrease the likelihood of neural activity, influencing perception, thought, learning, and movement.
excitementnoun
A feeling of eager, happy anticipation along with increased mental and body arousal.
excitement phasenoun
An initial stage in Masters and Johnson's sexual response model involves increasing sexual arousal and bodily changes.
excitotoxic lesionnoun
Damage to nervous tissue occurs when excessive stimulation injures or kills neurons.
excitotoxicitynoun
Damage and death of nerve cells caused by too much stimulation, often from excess glutamate, a brain chemical.
exclusion designnoun
Tools or systems are designed to make particular human errors nearly impossible by removing features that invite mistakes.
exclusiveadjective
Keeping categories fully separate so something cannot fit into both at once.
excoriation (skin-picking) disordernoun
Repeated skin picking causes wounds and significant distress or disruption, despite repeated efforts to reduce or stop it.
excrementnoun
Solid or partly solid digestive waste leaves the body through bowel movements.
exculpatory evidencenoun
Information supports the claim that an accused person did not commit the alleged wrongdoing.
executivenoun
A higher-level control system that starts, guides, and checks other mental activities.
executive areanoun
A brain region, often within the frontal lobe, is thought to support complex thinking and control of behavior.
executive attentionnoun
A person focuses on relevant information while setting aside competing or less useful input.
executive coachingphrase
Personalized one-on-one guidance from an outside coach helps managers improve leadership, people skills, and goal achievement at work.
executive control structurenoun
In Robbie Case's theory, a mental system represents problems, goals, and possible strategies to guide children's thinking.
executive dysfunctionphrase
Trouble planning, organizing, problem solving, and controlling actions, often linked to frontal brain system problems.
executive functionsphrase
Mental skills for planning, staying organized, controlling impulses, shifting strategies, and reaching goals, largely managed by the frontal lobes.
executive leadershipnoun
People at an organization's highest levels guide, organize, and motivate others to achieve shared goals.
executive organnoun
A body organ takes the leading role in carrying out a response to stimulation.
executive selfnoun
The experienced self is regarded as the source that directs and carries out voluntary actions.
executive stagenoun
Schaie's theory proposes that some middle-aged adults use advanced thinking to manage wider social responsibilities and competing priorities.
executive stressnoun
Managers experience strain from responsibility for major choices, employees' performance, and their organization's success.
Exelonnoun
A brand name identifies rivastigmine, a medicine used to help manage symptoms of dementia, including Alzheimer's dementia.
exemplar theorynoun
A theory proposes that people classify things by comparing them with particular examples stored in memory.
exemplary damagesnoun
A court orders an additional payment in a civil case to punish serious wrongdoing and discourage similar behavior.
exemplificationnoun
A person presents their behavior to encourage others to see them as especially moral and guided by shared values.
exercisenoun
Planned, repeated physical activity done to improve fitness and sometimes support mental health treatment.
exercise addictionnoun
Dependence on exercise leads someone to continue despite negative effects and experience withdrawal symptoms when stopping.
exercise adherencenoun
A person follows an exercise program consistently, including its planned effort level and session length.
exercise highnoun
A strong feeling of happiness or well-being occurs during physical activity or soon afterward.
exercise intolerancenoun
Physical symptoms limit a person's ability to exercise at a level expected for their age and condition.
exercise obsessionnoun
An overpowering focus on or dependence on exercise interferes with physical health, emotional well-being, or social life.
exercise playnoun
Play involves energetic whole-body movements, such as running and jumping, either alone or with others.
exercise psychologynoun
A field studies how thoughts, feelings, and behavior influence exercise participation and how exercise affects psychological well-being.
exercise stress testnoun
A medical examination monitors heart function and other bodily responses while a person performs physical exercise.
exercise therapynoun
Planned, repeated physical activity is used to prevent or manage health problems and improve functioning.
exercise–behavior modelnoun
A proposed model links exercise participation to personal tendencies, social background, expected costs and benefits, confidence, and perceived control.
exhaustionnoun
Being so extremely tired that thinking, working, or studying becomes much harder.
exhaustion deathnoun
A historical name for lethal catatonia described severe agitation that could end in death without an understood cause.
exhaustion deliriumnoun
Severe confusion and disrupted awareness occur during extreme exhaustion, often alongside sleep loss, environmental stress, or illness.
exhaustion stagephrase
The final stress phase, when the body's resources are used up and coping starts to fail.
exhaustiveadjective
Including every possible option or case, with nothing important left out.
exhibitionismnoun
A tendency to attract notice through conspicuous behavior involves making oneself especially visible to others.
existencenoun
The state of being real or present rather than absent or imaginary.
existence, relatedness, and growth theory (ERG theory)noun
Alderfer's theory groups work motivation into needs for basic material support, relationships, and personal development.
existential analysisnoun
A therapeutic approach explores conscious experience, personal meaning, and choices to help people make more deliberate decisions.
existential anxietynoun
A painful feeling that comes from realizing you are free, responsible, and will die without guaranteed meaning.
existential crisisnoun
A period of deep questioning challenges a person's sense of life's meaning, purpose, or responsibility for choices.
existential dreadphrase
A deep fear and sadness about life's meaning and the fact of being human.
existential intelligencenoun
A proposed type of intelligence involves considering fundamental questions about existence and humanity's place in the universe.
existential judgmentnoun
A philosophical judgment concerns whether something exists, where it comes from, or what it is like.
existential livingnoun
In Rogers's theory, a person engages fully with present experience and responds openly and flexibly to new situations.
existential neurosisnoun
A historical concept links anxiety and despair to avoiding personal choices, responsibility, and the creation of meaning.
existential phenomenologynoun
A philosophical approach examines lived experiences closely to understand what existing in the world means to a person.
existential psychoanalysisnoun
A therapeutic approach explores conscious experiences and choices to help people build meaning and take responsibility for their lives.
existential psychologynoun
An approach to psychology emphasizes each person's unique experience, personal meaning, freedom to choose, and responsibility for choices.
existential psychotherapynoun
A therapy approach helps people explore present experiences, create personal meaning, and accept responsibility for their choices.
existential vacuumnoun
In Frankl's theory, difficulty discovering personal meaning leaves someone feeling empty, disconnected, or without direction.
existential–humanistic therapynoun
A therapy approach considers the whole person, emphasizing personal experience, freedom, growth, and choices about life's direction.
existentialismnoun
A philosophical movement explores individual existence, freedom, responsibility, and the challenge of creating meaning amid uncertainty.
exit interviewphrase
A final meeting with a departing worker to learn why they are leaving and improve the workplace.
exo- (ex-)prefix
This word beginning indicates that something lies outside or has an outward or external relationship.
exocrine glandnoun
A gland releases substances through a duct onto a body surface or into a body cavity.
exogamynoun
A marriage practice involves choosing a spouse beyond one's family network, religious community, or other social group.
exogenousadjective
Coming from outside the body or caused by outside influences rather than internal ones.
exogenous attentionnoun
Attention shifts automatically when something noticeable in the surroundings captures it without a deliberate decision.
exogenous cuenoun
An external signal automatically pulls attention toward its location, often through a sudden appearance outside the center of vision.
exogenous depressionnoun
An older label describes an episode of major depression thought to begin in response to stressful life events.
exogenous variablenoun
A model uses this variable as an input whose value comes from influences the model does not explain.
exonnoun
A section of a gene corresponds to RNA that remains after processing, sometimes carrying instructions for making protein.
exophorianoun
An eye tends to drift outward when the two eyes cannot combine their views to maintain alignment.
exophthalmosnoun
An eyeball protrudes unusually far forward from its socket, sometimes in connection with thyroid disease.
exopsychicadjective
This describes mental activity proposed to have effects beyond the person experiencing it.
exorcismnoun
A religious ritual aims to remove spirits believed to occupy a person or place.
exosomatic methodnoun
Researchers apply a small external electrical current to measure skin resistance as an indicator of physiological arousal.
exosystemnoun
In ecological development theory, settings outside a person's direct participation influence development by changing their immediate surroundings.
exotropianoun
One or both eyes turn outward instead of staying aligned on the same target.
expabbreviation
This abbreviation denotes the exponential function, with exp(x) usually meaning e raised to the power x.
expanded consciousnessnoun
A person feels their awareness has become broader or newly opened, sometimes during meditation, mystical experiences, or drug effects.
expansionnoun
Writing a math or statistics function as a series of added parts.
expansion of morbiditynoun
A proposed population pattern involves illness or disability lasting longer because death is postponed more than their onset.
expansive delusionnoun
A firmly held false belief gives someone an exaggerated sense of their own power, importance, identity, or abilities.
expansive moodphrase
A person feels unusually powerful, important, or limitless, showing inflated self-confidence.
expansivenessnoun
A personality tendency combines unusually abundant talk, excessive friendliness, high activity, and limited restraint.
expectancynoun
A learned belief that certain actions or cues will likely lead to a certain result.
expectancy effectphrase
What someone expects can change how another person, or even they themselves, actually behaves.
expectancy theoryphrase
Work effort grows when people expect performance will lead to valued rewards.
expectancy wavenoun
A slow negative electrical brain signal develops between a warning and an action signal, reflecting anticipation or readiness.
expectancy-value modelnoun
A theory proposes that motivation depends on how much an outcome matters and how likely success seems.
expectationnoun
A feeling of tense anticipation about what you think is about to happen.
expectation-states theorynoun
A theory explains group status through expectations of competence shaped by relevant abilities and unrelated social stereotypes.
expected frequencyphrase
The number of cases a theory predicts should fall in each group.
expected valuenoun
A calculated average weights each possible value of a random quantity by its probability.
experiencenoun
Something a person actually lives through, rather than only imagining or thinking about.
experience-dependent processnoun
The brain changes in response to a person's particular experiences, supporting learning and adaptation throughout life.
experience-expectant processnoun
Developing brain circuits depend on common experiences, such as visual input, during particular periods to develop typically.
experience-sampling method (ESM)noun
Researchers repeatedly ask participants about their current thoughts, feelings, or activities at selected moments during everyday life.
experiencernoun
In grammar, this meaning role identifies the being who senses or feels what a sentence describes.
experiential family therapynoun
A family therapy approach uses immediate feelings, intuition, and genuine interaction to explore relationships and encourage change.
experiential historynoun
A person's background includes the relationships, surroundings, actions, and events they encounter across their lifetime.
experiential knowledgenoun
Understanding and practical skill develop from personally living through situations, beyond what formal teaching provides.
experiential learningnoun
People gain knowledge or skills through directly taking part in activities and working with their experiences.
experiential psychotherapynoun
A family of therapies encourages directly engaging with feelings and experiences during sessions to support change and self-understanding.
experiential subtheorynoun
Sternberg's intelligence theory proposes that creative ability involves handling unfamiliar tasks and making familiar task steps automatic.
experimentnoun
A controlled study changes one factor and measures another to test whether the first truly causes the second.
experiment-wise alpha levelnoun
Researchers set this limit for the probability of any false positive across a study's collection of statistical tests.
experiment-wise error ratenoun
This probability measures whether one or more false positives occur anywhere among a study's statistical tests.
experimental aestheticsnoun
Researchers use experiments to investigate how people respond to beauty, art, natural objects, and features such as color.
experimental analysis of behaviornoun
An experimental approach studies how environmental experiences, especially reinforcement arrangements, change an individual's behavior.
experimental attritionnoun
Participants leave or become unavailable during a study, reducing the sample and potentially changing what its results represent.
experimental conditionnoun
A specific treatment or situation is deliberately arranged by researchers to examine its effects on a measured outcome.
experimental controlphrase
Keeping all factors except the one being tested as constant as possible.
experimental designphrase
A study plan that sets procedures so researchers can test variables fairly and draw trustworthy conclusions.
experimental epilepsynoun
Researchers induce repeated seizures in nonhuman animals using electrical, chemical, or sensory stimulation to study seizure activity.
experimental ethicsnoun
Values and standards guide responsible study design, treatment of participants, research conduct, and reporting of results.
experimental groupphrase
In a study, these participants get the treatment being tested so researchers can compare their results.
experimental hypothesisnoun
A testable prediction states what a researcher expects to happen when particular conditions are changed in an experiment.
experimental manipulationphrase
Changing a cause being tested, called an independent variable, to see how it changes results.
experimental methodnoun
Researchers deliberately change one factor while controlling others to test predictions and investigate cause and effect.
experimental neuropsychologynoun
This research field investigates how nervous system structures and activities relate to thinking and behavior, including differences associated with impairment.
experimental neurosisphrase
Severe stress and disorganized behavior caused in animals by impossible or punishing conditioning tasks.
experimental philosophynoun
One philosophical approach proposes that brain science can ultimately explain knowledge and thought in biological terms.
experimental psychologynoun
This field uses controlled studies to investigate behavior, motivation, and thinking and develop explanations supported by measurements.
experimental realismnoun
A study has this quality when participants find it engaging and meaningful enough to respond naturally.
experimental researchphrase
A study method that randomly places people into groups and changes one factor to test cause and effect.
experimental treatmentnoun
The condition given to a research group to see whether it changes the outcome being measured.
experimental unitnoun
The person, group, or object independently assigned an experimental condition is the basic unit receiving that condition.
experimental variablenoun
A researcher deliberately changes this factor to investigate whether it affects a measured outcome.
experimenter biasphrase
A researcher's expectations can unintentionally influence participants or data, causing systematic errors in study results.
experimenter driftnoun
A researcher's methods or interpretations gradually shift without awareness, introducing a consistent bias into study results.
experimenter effectnoun
A researcher influences findings through interactions with participants or unintended mistakes in gathering, analyzing, or interpreting information.
experimenter expectancy effectnoun
A researcher's expectations unintentionally shape participants' responses through subtle signals, such as facial expressions or tone.
expert authoritynoun
A person's relevant knowledge or skills give them influence because others trust their ability to help achieve shared goals.
expert fallacynoun
This reasoning error treats someone's expertise in one field as a reason to trust their judgments in an unrelated field.
expert performancenoun
In this perceptual sense, a person detects very slight differences between two things they see, hear, or otherwise sense.
expert powerphrase
The ability to influence others because they believe you have special skill or knowledge.
expert systemnoun
A computer program uses explicitly stored human knowledge, often organized as rules, to solve problems requiring specialized judgment.
expert testimonyphrase
A qualified witness's court evidence may include opinions to help judge or jury decide facts.
expert witnessnoun
A court-approved specialist who explains evidence and gives opinions to help judges or juries decide.
expert–novice differencesnoun
Experienced specialists and beginners typically differ in how they approach tasks and how well they perform within a particular field.
expertisenoun
Deep skill and knowledge in one area built through long experience and practice.
expiatory punishmentnoun
A penalty imposes suffering according to how serious wrongdoing seems, without necessarily connecting the penalty's form to the wrongdoing.
explained variancephrase
The share of differences in an outcome that other measured variables can account for or predict.
explanationnoun
A reasoned account that makes an event or behavior understandable by pointing to causes, beliefs, or helpful comparisons.
explanatory modelphrase
A person's way of explaining an illness, including its causes, expected path, and best treatments.
explanatory researchnoun
A study investigates why an observed result or pattern occurs by examining possible reasons and mechanisms.
explanatory stylephrase
A person's usual way of explaining why events happen, especially good or bad experiences.
explanatory variablephrase
The factor a researcher changes or compares to see if it affects results.
explantnoun
A tissue sample removed from an organism is kept growing outside it in a specially prepared setting, often for research.
explicit attitudenoun
A person consciously recognizes a fairly lasting positive or negative evaluation of someone or something.
explicit attitude measurenoun
An assessment evaluates a person's attitudes while they know those attitudes are being examined, usually through direct questions.
explicit behaviornoun
An action can be directly noticed by other people without special equipment or expert knowledge.
explicit emotion regulationnoun
A person consciously monitors and deliberately adjusts their emotional responses, including through changing how they interpret a situation.
explicit memoryphrase
Stored facts and events you can purposely bring to mind when asked or when needed.
explicit memory testnoun
An assessment directly asks someone to consciously remember earlier experiences or identify material they previously encountered.
explicit prejudicenoun
A person knowingly holds a negative attitude toward a social group, whether or not they share it openly.
explicit processnoun
A mental activity is open to conscious examination, allowing a person to describe accurately how it unfolds.
exploitative orientationnoun
Erich Fromm proposed a character pattern of obtaining desired things from others through deception or coercion rather than personal creation.
exploratory behaviornoun
People or other animals investigate unfamiliar surroundings through movement and inspection, sometimes without any obvious biological reward.
exploratory data analysis (EDA)noun
Researchers examine data for unexpected patterns and possible explanations to develop fresh questions and insights.
exploratory drivenoun
An organism feels motivated to investigate its surroundings, possibly from other needs or from an independent urge to explore.
exploratory factor analysis (EFA)noun
A statistical method searches related measurements for fewer hidden dimensions that could account for their shared patterns.
exploratory procedurenoun
A person uses particular touching movements to discover an object's properties, such as pressing for hardness or rubbing for texture.
exploratory researchnoun
Researchers investigate a poorly understood topic to identify possible patterns, relationships, and questions for further study.
explosive disorderphrase
A condition marked by repeated sudden anger outbursts that are much stronger than the situation calls for.
explosive personalitynoun
An older descriptive label describes repeated, poorly controlled anger and hostility that greatly exceed what the situation would usually provoke.
exponentnoun
A small raised number tells how often a base number is used in repeated multiplication.
exponential curvenoun
A graph shows a quantity changing by the same multiplicative factor for each equal step along the horizontal axis.
exponential distributionnoun
A probability model describes waiting times when an event's instantaneous chance of occurring stays constant while one waits.
exponential function (exp)noun
A mathematical rule raises a fixed positive base other than one to a variable power, producing growth or decay.
exposure and response prevention (ERP; EX/RP)phrase
A therapy for OCD that has people face triggers and resist rituals until the anxiety gradually drops.
exposure deafnessnoun
Hearing decreases after extended contact with loud sound, with temporary or lasting effects depending on the exposure.
exposure therapyphrase
A treatment that repeatedly and safely faces feared situations or thoughts so anxiety drops and confidence grows.
expressed emotion (EE)phrase
Family criticism, hostility, or overinvolvement toward a person with mental illness, often linked to relapse.
expressionnoun
The outward showing of an inner feeling, thought, trait, or state.
expressionism factornoun
In psychological studies of art, this style dimension captures how strongly a work emphasizes the artist's intense emotional experience.
expressive amimianoun
A person cannot produce appropriate gestures to communicate meaning, even when they intend to convey a message.
expressive amusianoun
A person loses the ability to reproduce melodies, usually in association with damage to brain regions involved in music.
expressive aphasiaphrase
A brain-language problem that makes speech slow and hard to form, while understanding is often better.
expressive languagephrase
The words a person speaks or writes, rather than the words they understand.
expressive language disordernoun
A former developmental diagnosis described difficulty learning to communicate through language despite age-appropriate understanding, including trouble with vocabulary and sentences.
expressive suppressionnoun
A person deliberately holds back outward signs of an emotion after the emotional response has already begun.
expressive therapynoun
Psychotherapy encourages people to explore and express feelings through open discussion or creative activities such as art and movement.
expressive writingnoun
Writing exercises help people explore and express personal thoughts and feelings as part of therapeutic work.
extended carenoun
A residential service provides nursing around the clock and rehabilitation, often after a hospital stay for an acute health problem.
extended Cox regression modelnoun
A statistical model examines time until an event while allowing predictors or their effects on the event rate to change.
extended familynoun
Family that includes relatives beyond parents and children, such as grandparents, aunts, uncles, and cousins.
extended suicidenoun
A proposed interpretation of murder–suicide links both acts to suicidal intent, with victims perceived by the perpetrator as extensions of self.
extended-family therapynoun
Therapy brings immediate family together with additional relatives, such as grandparents or cousins, to work on shared concerns.
extended-release preparationnoun
A medicine is specially formulated to release its active substance gradually over a longer period.
extended-stay reviewnoun
A hospital care assessment checks whether someone still needs inpatient treatment after their stay reaches a previously set length.
extensionnoun
A follow-up study that changes part of an earlier study to see if the findings still hold.
extension reflexnoun
An automatic muscle response straightens a limb or extends one of its parts.
extensional meaningnoun
A word's meaning is specified by naming the individual things that it includes.
extensornoun
A muscle straightens or extends a body part when it tightens.
extensor motor neuronnoun
A nerve cell sends signals directly to muscles that straighten or extend a body part.
extensor posturingnoun
Severe brain dysfunction can cause a rigid posture with both arms and legs extended and turned inward.
extensor rigiditynoun
Muscles that straighten body parts remain unusually tight, sometimes because of damage to movement control systems.
extensor thrustnoun
Pressure or stimulation beneath the foot triggers automatic leg straightening that helps support the body during stepping.
exteriorizationnoun
A person connects private feelings and attitudes with outside reality or expresses personal ideas outwardly.
external aimnoun
In classical psychoanalytic theory, a person, thing, or action is sought as a way to satisfy an instinct.
external attributionphrase
Explaining someone's behavior by causes outside the person, such as the situation or other people's actions.
external auditory meatusnoun
A passage in the outer ear carries incoming sound toward the eardrum.
external boundarynoun
Psychoanalytic theory proposes a dividing line separating the ego, which handles practical demands, from the outside world.
external capsulenoun
A thin sheet of insulated nerve fibers lies between two brain structures called the claustrum and putamen.
external chemical messenger (ECM)noun
A substance released by one organism affects other organisms, as pheromones do.
external controlphrase
Believing that what happens to you is mostly caused by luck, fate, or other people.
external earnoun
The ear's outer section includes its visible flap, its canal, and the outward-facing eardrum surface.
external evaluatornoun
Someone assesses a program without belonging to its regular staff as a full-time employee.
external fertilizationnoun
Sperm joins an egg outside the egg-producing parent's body, forming the first cell of a new organism.
external genitaliaphrase
The visible sex organs on the outside of the body, such as the penis or vulva.
external granular layernoun
The neocortex's second layer contains small neurons, including granule cells and pyramid-shaped cells.
external inequitynoun
Employees receive compensation that is unfair compared with what similar employers would offer for comparable work.
external locus of controlphrase
Believing that luck, fate, or other people mostly control what happens to you.
external pyramidal layernoun
The neocortex's third layer contains pyramid-shaped neurons, with medium-sized cells nearer its top and larger cells deeper down.
external rectusnoun
An eye muscle pulls the eyeball outward, turning the gaze toward the side of the head.
external reliabilitynoun
A measurement gives consistent results when repeated at different times or scored by different evaluators.
external respirationnoun
An animal exchanges gases with its surroundings by taking in oxygen and releasing carbon dioxide.
external validityphrase
Shows whether study findings apply to other people, settings, and times beyond those actually tested.
external worldphrase
Everything that exists outside a person's mind and does not depend on their awareness.
externality effectnoun
Very young babies tend to examine a shape's outer edges more than its inner details.
externalizationnoun
In psychodynamic theory, people may experience their own thoughts or feelings as belonging to the outside world.
externalizing–internalizingnoun
A broad classification groups children's difficulties by outward behavior, such as aggression, or inward distress, such as anxiety.
exteroceptionnoun
Specialized sensory cells allow a person or animal to detect events and objects in the surrounding environment.
exteroceptive stimulusnoun
An event or substance outside an organism activates its senses, such as a ringing bell or a food's flavor.
exteroceptornoun
A specialized sensory cell or nerve ending detects input from the surrounding world, such as light or touch.
extinctionnoun
A learned behavior or reaction weakens when it no longer gets the expected pairing or reward.
extinction burstphrase
When a reward stops, a behavior briefly becomes stronger or more frequent before fading away.
extirpationnoun
A procedure removes an entire tissue or biological structure, sometimes to treat a condition or investigate its function.
extra- (extr-)prefix
This word beginning adds the meaning of being outside something or beyond its limits.
extracellular depositnoun
Material builds up between or around cells and may disrupt nearby tissue, as some protein deposits do in Alzheimer's disease.
extracellular spacenoun
The fluid-filled area outside cells' outer membrane, where substances move around the body.
extradural hemorrhagenoun
Bleeding occurs beyond the brain's tough outer covering, typically between that covering and the skull after an injury.
extrafusal fibernoun
A muscle cell outside the muscle's stretch sensors generates much of the force needed for movement.
extraneous variablephrase
Any factor not being studied that can still change the dependent variable, the measured outcome.
extrapair matingnoun
In species that form social pairs, an individual mates with someone other than its established partner.
extrapolationnoun
Known observations are used to estimate unknown results beyond the conditions, people, or times directly studied.
extrapsychicadjective
Something originates beyond a person's mind or involves exchanges between their mind and the surrounding environment.
extrapsychic conflictnoun
A person's wishes or needs clash with demands or conditions in their surroundings.
extrapunitiveadjective
Someone responds to frustration by directing blame, anger, or hostility toward other people or outside circumstances.
extrapyramidal dyskinesianoun
Disrupted movement control circuits cause unwanted or impaired movements, sometimes because of neurological illness or antipsychotic medication.
extrapyramidal symptoms (EPS)noun
Some medicines disrupt movement control, producing effects such as muscle stiffness, shaking, sustained contractions, or intense restlessness.
extrapyramidal tractnoun
A network including the basal ganglia and related nerve pathways helps coordinate movement, posture, and muscle tension.
extrasensory perception (ESP)noun
A proposed ability to gain information without using recognized senses remains unsupported by reliable, repeatable scientific evidence.
extraspective perspectivenoun
Researchers study observable actions and responses using evidence that can be checked by others.
extraspectral huenoun
A perceived hue, such as purple, requires combined wavelengths because no single wavelength of visible light produces it.
extrastriate cortexnoun
Brain surface regions beyond the primary visual area process visual information, including color, form, and motion.
extrastriate visual areanoun
A cortical brain region beyond the primary visual processing area helps interpret features such as shape, color, or motion.
extraterrestrial kidnappingnoun
A person reports being taken by alien beings, although scientific evidence has not established that such events occur.
extrauterine pregnancynoun
A pregnancy develops somewhere beyond the uterus, usually within a fallopian tube.
extraversion (extroversion)noun
A personality trait marked by seeking people, activity, and the outside world more than solitude.
extreme capsule (EmC)noun
A bundle of insulated brain fibers links frontal, temporal, and parietal regions and may carry information used in language.
extreme environmentsnoun
Places with unusually demanding living conditions can challenge people's health, comfort, social relationships, and ability to cope.
extremely low birth weight (ELBW)noun
A baby weighing under 1,000 grams when born falls into this birth weight category.
extremity of an attitudenoun
The degree to which someone's judgment is positive or negative measures its distance from a neutral position.
extrinsic eye musclesnoun
Six muscles attached outside each eyeball work together to turn it within its socket.
extrinsic motivationphrase
Doing something because of outside rewards or to avoid punishment, rather than for personal interest.
extrinsic reinforcementnoun
An external reward makes a behavior more likely to happen again, beyond any enjoyment the activity itself provides.
extrinsic religionnoun
A religious orientation treats religious involvement mainly as a way to gain other benefits, such as belonging or comfort.
extrinsic rewardphrase
A benefit given from outside, like money or praise, to increase a behavior.
extroversionnoun
A personality trait marked by being outgoing, talkative, and energized by other people.
eyenoun
The organ that detects light and sends visual information to the brain.
eye banknoun
A specialized facility collects, checks, preserves, and supplies donated eye tissue for suitable transplant recipients.
eye contactphrase
Looking directly at another person's eyes during interaction, a social cue that varies across cultures and conditions.
eye dominancenoun
A person tends to rely more on one eye for certain visual tasks or when combining both eyes' information.
eye movementsphrase
Shifts in where the eyes point, made by muscles around the eyes to track or fix on things.
eye musclesphrase
Muscles around and inside the eye move the eyeball and adjust the lens and pupil.
eye preferencenoun
One eye is favored over its partner when looking or when the brain weighs incoming visual information.
eye spannoun
The amount of text a reader takes in while their eyes pause at one location is their reading eye span.
eye structurenoun
The arrangement of the eye's layers, fluids, lens, and other parts allows it to collect light and support vision.
eye trackernoun
An instrument measures where someone looks and how their gaze shifts across a scene or display.
eye-movement cameranoun
A camera records eye motion so researchers can study where and when the eyes pause during different tasks.
eye-movement desensitization and reprocessing (EMDR)noun
A structured therapy helps people process distressing memories while using guided eye movements or other alternating stimulation.
eye-roll signnoun
Upward eye movement during falling asleep or hypnosis has been proposed as a clue to responsiveness to hypnotic suggestions.
eye–hand coordinationnoun
The brain combines what the eyes see with hand movements to guide actions such as reaching, drawing, and catching.
eye–voice spannoun
During reading aloud, this distance counts the characters separating the spoken word from the word currently being viewed.
eyelash signnoun
Touching the eyelashes can trigger an eyelid movement that clinicians may observe when assessing a person's responsiveness.
eyelid conditioningnoun
Researchers pair a cue with something that naturally causes blinking until the cue alone brings about a learned blink.
eyewitness memoryphrase
A person's memory of an event they saw firsthand, which can be important but mistaken.
eyewitness testimonyphrase
A witness's sworn court statement about what they remember seeing during the event being questioned.
EYM Projectabbreviation
This long-term research project followed married Americans from Black and White backgrounds to examine relationship satisfaction, stability, and divorce.
Eysenck Personality Inventory (EPI)noun
A self-report questionnaire measures outgoing tendencies and emotional instability, with an additional scale checking potentially distorted answers.
Eysenck’s dimensionsnoun
Eysenck's personality model describes differences using three proposed traits: extraversion, neuroticism, and psychoticism.

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