Vocabulary

Absolute threshold: The smallest amount of stimulation needed for detection by a sense.
Acceptance and commitment therapy: A therapeutic approach designed to foster nonjudgmental observation of one’s own mental processes.
Action Potential: A transient all-or-nothing electrical current that is conducted down the axon when the membrane potential reaches the threshold of excitation.
Action-Oriented Research: Research that generates knowledge through participatory university/community partnerships in the hope of bringing about social change.
Adaptation: Focuses on interactions between persons and their environments to better understand why behavior that is effective in one setting may not be useful in others.
Adaptation: The fact that after people first react to good or bad events, sometimes in a strong way, their feelings and reactions tend to dampen down over time and they return toward their original level of subjective well-being.
Adaptations: Evolved solutions to problems that historically contributed to reproductive success.
Adherence: In health, it is the ability of a patient to maintain a health behavior prescribed by a physician. This might include taking medication as prescribed, exercising more, or eating less high-fat food.
Adoption: To take in and raise a child of other parents legally as one’s own.
Adoption study: A behavior genetic research method that involves comparison of adopted children to their adoptive and biological parents.
Affective forecasting: Predicting how one will feel in the future after some event or decision.
Age in place: The trend toward making accommodations to ensure that aging people can stay in their homes and live independently.
Agender: An individual who may have no gender or may describe themselves as having a neutral gender.
Aggression: Any behavior intended to harm another person who does not want to be harmed.
Agnosia: Loss of the ability to perceive stimuli.
Agoraphobia: A sort of anxiety disorder distinguished by feelings that a place is uncomfortable or may be unsafe because it is significantly open or crowded.
Agreeableness: A core personality trait that includes such dispositional characteristics as being sympathetic, generous, forgiving, and helpful, and behavioral tendencies toward harmonious social relations and likeability.
Agreeableness: A personality trait that reflects a person’s tendency to be compassionate, cooperative, warm, and caring to others. People low in agreeableness tend to be rude, hostile, and to pursue their own interests over those of others.
Alogia: A reduction in the amount of speech and/or increased pausing before the initiation of speech.
Altruism: A motivation for helping that has the improvement of another’s welfare as its ultimate goal, with no expectation of any benefits for the helper.
Ambivalent sexism: A concept of gender attitudes that encompasses both positive and negative qualities.
Anchoring: The bias to be affected by an initial anchor, even if the anchor is arbitrary, and to insufficiently adjust our judgments away from that anchor.
Anecdotal evidence: A piece of biased evidence, usually drawn from personal experience, used to support a conclusion that may or may not be correct.
Anhedonia: Loss of interest or pleasure in activities one previously found enjoyable or rewarding.
Anhedonia/amotivation: A reduction in the drive or ability to take the steps or engage in actions necessary to obtain the potentially positive outcome.
Anosmia: Loss of the ability to smell.
Anxiety: A mood state characterized by negative affect, muscle tension, and physical arousal in which a person apprehensively anticipates future danger or misfortune.
Anxious-avoidant: Attachment style that involves suppressing one’s own feelings and desires, and a difficulty depending on others.
Anxious-resistant: Attachment style that is self-critical, insecure, and fearful of rejection.
Arousal: cost–reward model: An egoistic theory proposed by Piliavin et al. (1981) that claims that seeing a person in need leads to the arousal of unpleasant feelings, and observers are motivated to eliminate that aversive state, often by helping the victim. A cost–reward analysis may lead observers to react in ways other than offering direct assistance, including indirect help, reinterpretation of the situation, or fleeing the scene.
Attachment theory: Theory that describes the enduring patterns of relationships from birth to death.
Attitude: A psychological tendency that is expressed by evaluating a particular entity with some degree of favor or disfavor.
Attributional style: The tendency by which a person infers the cause or meaning of behaviors or events.
Audition: Ability to process auditory stimuli. Also called hearing.
Auditory canal: Tube running from the outer ear to the middle ear.
Auditory hair cells: Receptors in the cochlea that transduce sound into electrical potentials.
Authoritarian parenting: Parenting style that is high is demandingness and low in support.
Authoritative: A parenting style characterized by high (but reasonable) expectations for children’s behavior, good communication, warmth and nurturance, and the use of reasoning (rather than coercion) as preferred responses to children’s misbehavior.
Authoritative parenting: A parenting style that is high in demandingness and high in support.
Autobiographical memory: Memory for the events of one’s life.
Autobiographical reasoning: The ability, typically developed in adolescence, to derive substantive conclusions about the self from analyzing one’s own personal experiences.
Automatic: A behavior or process has one or more of the following features: unintentional, uncontrollable, occurring outside of conscious awareness, and cognitively efficient.
Automatic: Automatic biases are unintended, immediate, and irresistible.
Automatic thoughts: Thoughts that occur spontaneously; often used to describe problematic thoughts that maintain mental disorders.
Availability heuristic: A heuristic in which the frequency or likelihood of an event is evaluated based on how easily instances of it come to mind.
Availability heuristic: The tendency to judge the frequency or likelihood of an event by the ease with which relevant instances come to mind.
Aversive racism: Aversive racism is unexamined racial bias that the person does not intend and would reject, but that avoids inter-racial contact.
Axon: Part of the neuron that extends off the soma, splitting several times to connect with other neurons; main output of the neuron.
Balancing between goals: Shifting between a focal goal and other goals or temptations by putting less effort into the focal goal—usually with the intention of coming back to the focal goal at a later point in time.
Behavioral genetics: The empirical science of how genes and environments combine to generate behavior.
Behavioral medicine: A field similar to health psychology that integrates psychological factors (e.g., emotion, behavior, cognition, and social factors) in the treatment of disease. This applied field includes clinical areas of study, such as occupational therapy, hypnosis, rehabilitation or medicine, and preventative medicine.
Behaviorism: The study of behavior.
Benevolent sexism: The “positive” element of ambivalent sexism, which recognizes that women are perceived as needing to be protected, supported, and adored by men.
Biases: The systematic and predictable mistakes that influence the judgment of even very talented human beings.
Big Five: A broad taxonomy of personality trait domains repeatedly derived from studies of trait ratings in adulthood and encompassing the categories of (1) extraversion vs. introversion, (2) neuroticism vs. emotional stability, (3) agreeable vs. disagreeableness, (4) conscientiousness vs. nonconscientiousness, and (5) openness to experience vs. conventionality. By late childhood and early adolescence, people’s self-attributions of personality traits, as well as the trait attributions made about them by others, show patterns of intercorrelations that confirm with the five-factor structure obtained in studies of adults.
Bigender: An individual who identifies as two genders.
Binary: The idea that gender has two separate and distinct categories (male and female) and that a person must be either one or the other.
Binocular disparity: Difference is images processed by the left and right eyes.
Binocular vision: Our ability to perceive 3D and depth because of the difference between the images on each of our retinas.
Biofeedback: The process by which physiological signals, not normally available to human perception, are transformed into easy-to-understand graphs or numbers. Individuals can then use this information to try to change bodily functioning (e.g., lower blood pressure, reduce muscle tension).
Biological vulnerability: A specific genetic and neurobiological factor that might predispose someone to develop anxiety disorders.
Biomedical Model of Health: A reductionist model that posits that ill health is a result of a deviation from normal function, which is explained by the presence of pathogens, injury, or genetic abnormality.
Biopsychosocial Model of Health: An approach to studying health and human function that posits the importance of biological, psychological, and social (or environmental) processes.
Blatant biases: Blatant biases are conscious beliefs, feelings, and behavior that people are perfectly willing to admit, are mostly hostile, and openly favor their own group.
Blended family: A family consisting of an adult couple and their children from previous relationships.
Blocking: In classical conditioning, the finding that no conditioning occurs to a stimulus if it is combined with a previously conditioned stimulus during conditioning trials. Suggests that information, surprise value, or prediction error is important in conditioning.
Blood Alcohol Content (BAC): Blood Alcohol Content (BAC): a measure of the percentage of alcohol found in a person’s blood. This measure is typically the standard used to determine the extent to which a person is intoxicated, as in the case of being too impaired to drive a vehicle.
Boomerang generation: Term used to describe young adults, primarily between the ages of 25 and 34, who return home after previously living on their own.
“Bottom-up” or external causes of happiness: Situational factors outside the person that influence his or her subjective well-being, such as good and bad events and circumstances such as health and wealth.
Bottom-up processing: Building up to perceptual experience from individual pieces.
Bounded awareness: The systematic ways in which we fail to notice obvious and important information that is available to us.
Bounded ethicality: The systematic ways in which our ethics are limited in ways we are not even aware of ourselves.
Bounded rationality: Model of human behavior that suggests that humans try to make rational decisions but are bounded due to cognitive limitations.
Bounded self-interest: The systematic and predictable ways in which we care about the outcomes of others.
Bounded willpower: The tendency to place greater weight on present concerns rather than future concerns.
Brain Stem: The “trunk” of the brain comprised of the medulla, pons, midbrain, and diencephalon.
Broca’s Area: An area in the frontal lobe of the left hemisphere. Implicated in language production.
Bystander intervention: The phenomenon whereby people intervene to help others in need even if the other is a complete stranger and the intervention puts the helper at risk.
Catatonia: Behaviors that seem to reflect a reduction in responsiveness to the external environment. This can include holding unusual postures for long periods of time, failing to respond to verbal or motor prompts from another person, or excessive and seemingly purposeless motor activity.
Categorize: To sort or arrange different items into classes or categories.
Catharsis: Greek term that means to cleanse or purge. Applied to aggression, catharsis is the belief that acting aggressively or even viewing aggression purges angry feelings and aggressive impulses into harmless channels.
Causality: In research, the determination that one variable causes—is responsible for—an effect.
Cause-and-effect: Related to whether we say one variable is causing changes in the other variable, versus other variables that may be related to these two variables.
Central Nervous System: The portion of the nervous system that includes the brain and spinal cord.
Cerebellum: The distinctive structure at the back of the brain, Latin for “small brain.”
Cerebrum: Usually refers to the cerebral cortex and associated white matter, but in some texts includes the subcortical structures.
Chameleon effect: The tendency for individuals to nonconsciously mimic the postures, mannerisms, facial expressions, and other behaviors of one’s interaction partners.
Chemical senses: Our ability to process the environmental stimuli of smell and taste.
Child abuse: Injury, death, or emotional harm to a child caused by a parent or caregiver, either intentionally or unintentionally.
Childfree: Term used to describe people who purposefully choose not to have children.
Childless: Term used to describe people who would like to have children but are unable to conceive.
Chronic disease: A health condition that persists over time, typically for periods longer than three months (e.g., HIV, asthma, diabetes).
Chronic stress: Discrete or related problematic events and conditions which persist over time and result in prolonged activation of the biological and/or psychological stress response (e.g., unemployment, ongoing health difficulties, marital discord).
Circadian Rhythm: Circadian Rhythm: The physiological sleep-wake cycle. It is influenced by exposure to sunlight as well as daily schedule and activity. Biologically, it includes changes in body temperature, blood pressure and blood sugar.
Cisgender: A term used to describe individuals whose gender matches their biological sex.
Classical conditioning: The procedure in which an initially neutral stimulus (the conditioned stimulus, or CS) is paired with an unconditioned stimulus (or US). The result is that the conditioned stimulus begins to elicit a conditioned response (CR). Classical conditioning is nowadays considered important as both a behavioral phenomenon and as a method to study simple associative learning. Same as Pavlovian conditioning.
Cochlea: Spiral bone structure in the inner ear containing auditory hair cells.
Cognitive bias modification: Using exercises (e.g., computer games) to change problematic thinking habits.
Cognitive psychology: The study of mental processes.
Cognitive-behavioral therapy (CBT): A family of approaches with the goal of changing the thoughts and behaviors that influence psychopathology.
Cohabitation: Arrangement where two unmarried adults live together.
Coherence: Within attachment theory, the gaining of insight into and reconciling one’s childhood experiences.
Collective efficacy: The shared beliefs among members of a group about the group’s ability to effectively perform the tasks needed to attain a valued goal.
Collective self-esteem: Feelings of self-worth that are based on evaluation of relationships with others and membership in social groups.
Collectivism: Belief system that emphasizes the duties and obligations that each person has toward others.
Collectivism: The cultural trend in which the primary unit of measurement is the group. Collectivists are likely to emphasize duty and obligation over personal aspirations.
Commitment: The sense that a goal is both valuable and attainable
Common knowledge effect: The tendency for groups to spend more time discussing information that all members know (shared information) and less time examining information that only a few members know (unshared).
Community Psychology: A field that goes beyond an individual focus and integrates social, cultural, economic, political, and environmental influences to promote system level, second order change.
Community-Based Participatory Research: Research that involves power sharing between researchers and the community members as issues for action are defined and change interventions launched.
Comorbidity: Describes a state of having more than one psychological or physical disorder at a given time.
Conceptual Replication: A scientific attempt to copy the scientific hypothesis used in an earlier study in an effort to determine whether the results will generalize to different samples, times, or situations. The same—or similar—results are an indication that the findings are generalizable.
Conditioned compensatory response: In classical conditioning, a conditioned response that opposes, rather than is the same as, the unconditioned response. It functions to reduce the strength of the unconditioned response. Often seen in conditioning when drugs are used as unconditioned stimuli.
Conditioned response: A learned reaction following classical conditioning, or the process by which an event that automatically elicits a response is repeatedly paired with another neutral stimulus (conditioned stimulus), resulting in the ability of the neutral stimulus to elicit the same response on its own.
Conditioned response (CR): The response that is elicited by the conditioned stimulus after classical conditioning has taken place.
Conditioned stimulus (CS): An initially neutral stimulus (like a bell, light, or tone) that elicits a conditioned response after it has been associated with an unconditioned stimulus.
Cones: Photoreceptors of the retina sensitive to color. Located primarily in the fovea.
Confederate: An actor working with the researcher. Most often, this individual is used to deceive unsuspecting research participants. Also known as a “stooge.”
Confidence interval: An interval of plausible values for a population parameter; the interval of values within the margin of error of a statistic.
Confounds: Factors that undermine the ability to draw causal inferences from an experiment.
Conscience: The cognitive, emotional, and social influences that cause young children to create and act consistently with internal standards of conduct.
Conscientiousness: A personality trait that reflects a person’s tendency to be careful, organized, hardworking, and to follow rules.
Conscious goal activation: When a person is fully aware of contextual influences and resulting goal-directed behavior.
Consciousness: Consciousness: the awareness or deliberate perception of a stimulus
Consciousness: Awareness of ourselves and our environment.
Consolidation: The process occurring after encoding that is believed to stabilize memory traces.
Context: Stimuli that are in the background whenever learning occurs. For instance, the Skinner box or room in which learning takes place is the classic example of a context. However, “context” can also be provided by internal stimuli, such as the sensory effects of drugs (e.g., being under the influence of alcohol has stimulus properties that provide a context) and mood states (e.g., being happy or sad). It can also be provided by a specific period in time—the passage of time is sometimes said to change the “temporal context.”
Contingency management: A reward or punishment that systematically follows a behavior. Parents can use contingencies to modify their children’s behavior.
Continuous distributions: Characteristics can go from low to high, with all different intermediate values possible. One does not simply have the trait or not have it, but can possess varying amounts of it.
Contralateral: Literally “opposite side”; used to refer to the fact that the two hemispheres of the brain process sensory information and motor commands for the opposite side of the body (e.g., the left hemisphere controls the right side of the body).
Control: Feeling like you have the power to change your environment or behavior if you need or want to.
Corpus Callosum: The thick bundle of nerve cells that connect the two hemispheres of the brain and allow them to communicate.
Correlation: In statistics, the measure of relatedness of two or more variables.
Correlation: Measures the association between two variables, or how they go together.
Cost–benefit analysis: A decision-making process that compares the cost of an action or thing against the expected benefit to help determine the best course of action.
Cross-cultural psychology (or cross-cultural studies): An approach to researching culture that emphasizes the use of standard scales as a means of making meaningful comparisons across groups.
Cross-cultural studies (or cross-cultural psychology): An approach to researching culture that emphasizes the use of standard scales as a means of making meaningful comparisons across groups.
Crowds: Adolescent peer groups characterized by shared reputations or images.
Cue overload principle: The principle stating that the more memories that are associated to a particular retrieval cue, the less effective the cue will be in prompting retrieval of any one memory.
Cues: Cues: a stimulus that has a particular significance to the perceiver (e.g., a sight or a sound that has special relevance to the person who saw or heard it)
Cultural differences: An approach to understanding culture primarily by paying attention to unique and distinctive features that set them apart from other cultures.
Cultural display rules: These are rules that are learned early in life that specify the management and modification of emotional expressions according to social circumstances. Cultural display rules can work in a number of different ways. For example, they can require individuals to express emotions “as is” (i.e., as they feel them), to exaggerate their expressions to show more than what is actually felt, to tone down their expressions to show less than what is actually felt, to conceal their feelings by expressing something else, or to show nothing at all.
Cultural intelligence: The ability and willingness to apply cultural awareness to practical uses.
Cultural psychology: An approach to researching culture that emphasizes the use of interviews and observation as a means of understanding culture from its own point of view.
Cultural relativism: The principled objection to passing overly culture-bound (i.e., “ethnocentric”) judgements on aspects of other cultures.
Cultural script: Learned guides for how to behave appropriately in a given social situation. These reflect cultural norms and widely accepted values.
Cultural similarities: An approach to understanding culture primarily by paying attention to common features that are the same as or similar to those of other cultures
Culture: A pattern of shared meaning and behavior among a group of people that is passed from one generation to the next.
Daily hassles: Irritations in daily life that are not necessarily traumatic, but that cause difficulties and repeated stress.
Dark adaptation: Adjustment of eye to low levels of light.
Data (also called observations): In research, information systematically collected for analysis and interpretation.
Deductive reasoning: A form of reasoning in which a given premise determines the interpretation of specific observations (e.g., All birds have feathers; since a duck is a bird, it has feathers).
Deliberative phase: The first of the two basic stages of self-regulation in which individuals decide which of many potential goals to pursue at a given point in time.
Delusions: False beliefs that are often fixed, hard to change even in the presence of conflicting information, and often culturally influenced in their content.
Dendrites: Part of a neuron that extends away from the cell body and is the main input to the neuron.
Dependent variable: The variable the researcher measures but does not manipulate in an experiment.
Depressants: Depressants: a class of drugs that slow down the body’s physiological and mental processes.
Developmental intergroup theory: A theory that postulates that adults’ focus on gender leads children to pay attention to gender as a key source of information about themselves and others, to seek out possible gender differences, and to form rigid stereotypes based on gender.
Deviant peer contagion: The spread of problem behaviors within groups of adolescents.
Diagnostic criteria: The specific criteria used to determine whether an individual has a specific type of psychiatric disorder. Commonly used diagnostic criteria are included in the Diagnostic and Statistical Manual of Mental Disorder, 5th Edition (DSM-5) and the Internal Classification of Disorders, Version 9 (ICD-9).
Dialectical behavior therapy (DBT): A treatment often used for borderline personality disorder that incorporates both cognitive-behavioral and mindfulness elements.
Dialectical worldview: A perspective in DBT that emphasizes the joint importance of change and acceptance.
Dichotic listening: An experimental task in which two messages are presented to different ears.
Differential susceptibility: Genetic factors that make individuals more or less responsive to environmental experiences.
Differential threshold (or difference threshold): The smallest difference needed in order to differentiate two stimuli. (See Just Noticeable Difference (JND))
Diffuse Optical Imaging (DOI): A neuroimaging technique that infers brain activity by measuring changes in light as it is passed through the skull and surface of the brain.
Diffusion of responsibility: When deciding whether to help a person in need, knowing that there are others who could also provide assistance relieves bystanders of some measure of personal responsibility, reducing the likelihood that bystanders will intervene.
Directional goals: The motivation to reach a particular outcome or judgment.
Discrimination: Discrimination is behavior that advantages or disadvantages people merely based on their group membership.
Discriminative stimulus: In operant conditioning, a stimulus that signals whether the response will be reinforced. It is said to “set the occasion” for the operant response.
Disorganized behavior: Behavior or dress that is outside the norm for almost all subcultures. This would include odd dress, odd makeup (e.g., lipstick outlining a mouth for 1 inch), or unusual rituals (e.g., repetitive hand gestures).
Disorganized speech: Speech that is difficult to follow, either because answers do not clearly follow questions or because one sentence does not logically follow from another.
Dissociation: Dissociation: the heightened focus on one stimulus or thought such that many other things around you are ignored; a disconnect between one’s awareness of their environment and the one object the person is focusing on
Distinctiveness: The principle that unusual events (in a context of similar events) will be recalled and recognized better than uniform (nondistinctive) events.
Distribution: The pattern of variation in data.
Distribution: In statistics, the relative frequency that a particular value occurs for each possible value of a given variable.
Divided attention: The ability to flexibly allocate attentional resources between two or more concurrent tasks.
DNA methylation: Covalent modifications of mammalian DNA occurring via the methylation of cytosine, typically in the context of the CpG dinucleotide.
DNA methyltransferases (DNMTs): Enzymes that establish and maintain DNA methylation using methyl-group donor compounds or cofactors. The main mammalian DNMTs are DNMT1, which maintains methylation state across DNA replication, and DNMT3a and DNMT3b, which perform de novo methylation.
Dopamine: A neurotransmitter in the brain that is thought to play an important role in regulating the function of other neurotransmitters.
Dorsal pathway: Pathway of visual processing. The “where” pathway.
Drug diversion: When a drug that is prescribed to treat a medical condition is given to another individual who seeks to use the drug illicitly.
Durability bias: A bias in affective forecasting in which one overestimates for how long one will feel an emotion (positive or negative) after some event.
Early adversity: Single or multiple acute or chronic stressful events, which may be biological or psychological in nature (e.g., poverty, abuse, childhood illness or injury), occurring during childhood and resulting in a biological and/or psychological stress response.
Ecological: Understanding the relationships between people and their social environments (e.g., families, groups, communities, and societies).
Ecological Perspective: A consideration of individual, group, community, and ecological contextual factors when examining phenomena of interest.
Effortful control: A temperament quality that enables children to be more successful in motivated self-regulation.
Ego: Sigmund Freud’s conception of an executive self in the personality. Akin to this module’s notion of “the I,” Freud imagined the ego as observing outside reality, engaging in rational though, and coping with the competing demands of inner desires and moral standards.
Ego-depletion: The exhaustion of physiological and/or psychological resources following the completion of effortful self-control tasks, which subsequently leads to reduction in the capacity to exert more self-control.
Egoism: A motivation for helping that has the improvement of the helper’s own circumstances as its primary goal.
Elder abuse: Any form of mistreatment that results in harm to an elder person, often caused by his/her adult child.
Electroencephalography (EEG): A neuroimaging technique that measures electrical brain activity via multiple electrodes on the scalp.
Emerging adulthood: A new life stage extending from approximately ages 18 to 25, during which the foundation of an adult life is gradually constructed in love and work. Primary features include identity explorations, instability, focus on self-development, feeling incompletely adult, and a broad sense of possibilities.
Emotion: An experiential, physiological, and behavioral response to a personally meaningful stimulus.
Emotion coherence: The degree to which emotional responses (subjective experience, behavior, physiology, etc.) converge with one another.
Emotion fluctuation: The degree to which emotions vary or change in intensity over time.
Emotion-focused coping: Coping strategy aimed at reducing the negative emotions associated with a stressful event.
Empathic concern: According to Batson’s empathy–altruism hypothesis, observers who empathize with a person in need (that is, put themselves in the shoes of the victim and imagine how that person feels) will experience empathic concern and have an altruistic motivation for helping.
Empathy–altruism model: An altruistic theory proposed by Batson (2011) that claims that people who put themselves in the shoes of a victim and imagining how the victim feel will experience empathic concern that evokes an altruistic motivation for helping.
Empirical: Concerned with observation and/or the ability to verify a claim.
Empirical methods: Approaches to inquiry that are tied to actual measurement and observation.
Empiricism: The belief that knowledge comes from experience.
Empty Nest: Feelings of sadness and loneliness that parents may feel when their adult children leave the home for the first time.
Encoding: The initial experience of perceiving and learning events.
Encoding specificity principle: The hypothesis that a retrieval cue will be effective to the extent that information encoded from the cue overlaps or matches information in the engram or memory trace.
Enculturation: The uniquely human form of learning that is taught by one generation to another.
Endophenotypes: A characteristic that reflects a genetic liability for disease and a more basic component of a complex clinical presentation. Endophenotypes are less developmentally malleable than overt behavior.
Engagement: Formal agreement to get married.
Engrams: A term indicating the change in the nervous system representing an event; also, memory trace.
Epigenetics: The study of heritable changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence. Epigenetic marks include covalent DNA modifications and posttranslational histone modifications.
Epigenome: The genome-wide distribution of epigenetic marks.
Episodic memory: The ability to learn and retrieve new information or episodes in one’s life.
Episodic memory: Memory for events in a particular time and place.
Error management theory (EMT): A theory of selection under conditions of uncertainty in which recurrent cost asymmetries of judgment or inference favor the evolution of adaptive cognitive biases that function to minimize the more costly errors.
Ethics: Professional guidelines that offer researchers a template for making decisions that protect research participants from potential harm and that help steer scientists away from conflicts of interest or other situations that might compromise the integrity of their research.
Ethnocentric bias (or ethnocentrism): Being unduly guided by the beliefs of the culture you’ve grown up in, especially when this results in a misunderstanding or disparagement of unfamiliar cultures.
Ethnographic studies: Research that emphasizes field data collection and that examines questions that attempt to understand culture from it's own context and point of view.
Eugenics: The practice of selective breeding to promote desired traits.
Euphoria: Euphoria: an intense feeling of pleasure, excitement or happiness.
Evaluative priming task: An implicit attitude task that assesses the extent to which an attitude object is associated with a positive or negative valence by measuring the time it takes a person to label an adjective as good or bad after being presented with an attitude object.
Event-related potentials (ERP): Measures the firing of groups of neurons in the cortex. As a person views or listens to specific types of information, neuronal activity creates small electrical currents that can be recorded from non-invasive sensors placed on the scalp. ERP provides excellent information about the timing of processing, clarifying brain activity at the millisecond pace at which it unfolds.
Evolution: Change over time. Is the definition changing?
Exact Replication (also called Direct Replication): A scientific attempt to exactly copy the scientific methods used in an earlier study in an effort to determine whether the results are consistent. The same—or similar—results are an indication that the findings are accurate.
Experimenter expectations: When the experimenter’s expectations influence the outcome of a study.
Explicit attitude: An attitude that is consciously held and can be reported on by the person holding the attitude.
Exposure therapy: A form of intervention in which the patient engages with a problematic (usually feared) situation without avoidance or escape.
External cues: Stimuli in the outside world that serve as triggers for anxiety or as reminders of past traumatic events.
Extinction: Decrease in the strength of a learned behavior that occurs when the conditioned stimulus is presented without the unconditioned stimulus (in classical conditioning) or when the behavior is no longer reinforced (in instrumental conditioning). The term describes both the procedure (the US or reinforcer is no longer presented) as well as the result of the procedure (the learned response declines). Behaviors that have been reduced in strength through extinction are said to be “extinguished.”
Extraversion: A personality trait that reflects a person’s tendency to be sociable, outgoing, active, and assertive.
Extrinsic motivation: Motivation stemming from the benefits associated with achieving a goal such as obtaining a monetary reward.
Facets: Broad personality traits can be broken down into narrower facets or aspects of the trait. For example, extraversion has several facets, such as sociability, dominance, risk-taking and so forth.
Fact: Objective information about the world.
Factor analysis: A statistical technique for grouping similar things together according to how highly they are associated.
False memories: Memory for an event that never actually occurred, implanted by experimental manipulation or other means.
Falsified data (faked data): Data that are fabricated, or made up, by researchers intentionally trying to pass off research results that are inaccurate. This is a serious ethical breach and can even be a criminal offense.
Falsify: In science, the ability of a claim to be tested and—possibly—refuted; a defining feature of science.
Family of orientation: The family one is born into.
Family of procreation: The family one creates, usually through marriage.
Family Stress Model: A description of the negative effects of family financial difficulty on child adjustment through the effects of economic stress on parents’ depressed mood, increased marital problems, and poor parenting.
Family systems theory: Theory that says a person cannot be understood on their own, but as a member of a unit.
Fear conditioning: A type of classical or Pavlovian conditioning in which the conditioned stimulus (CS) is associated with an aversive unconditioned stimulus (US), such as a foot shock. As a consequence of learning, the CS comes to evoke fear. The phenomenon is thought to be involved in the development of anxiety disorders in humans.
Fight or flight response: A biological reaction to alarming stressors that prepares the body to resist or escape a threat.
First-Order Change: Involves minor changes that lead to small, short-term improvements by focusing exclusively on the individuals.
Five-Factor Model: (also called the Big Five) The Five-Factor Model is a widely accepted model of personality traits. Advocates of the model believe that much of the variability in people’s thoughts, feelings, and behaviors can be summarized with five broad traits. These five traits are Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism.
Flashback: Sudden, intense re-experiencing of a previous event, usually trauma-related.
Flashbulb memory: Vivid personal memories of receiving the news of some momentous (and usually emotional) event.
Flashbulb memory: A highly detailed and vivid memory of an emotionally significant event.
Flat affect: A reduction in the display of emotions through facial expressions, gestures, and speech intonation.
Flavor: The combination of smell and taste.
Flexible Correction Model: Flexible Correction Model: the ability for people to correct or change their beliefs and evaluations if they believe these judgments have been biased (e.g., if someone realizes they only thought their day was great because it was sunny, they may revise their evaluation of the day to account for this “biasing” influence of the weather)
Foils: Any member of a lineup (whether live or photograph) other than the suspect.
Foreclosure: Individuals commit to an identity without exploration of options.
Foster care: Care provided by alternative families to children whose families of orientation cannot adequately care for them; often arranged through the government or a social service agency.
Framing: The bias to be systematically affected by the way in which information is presented, while holding the objective information constant.
Free association: In psychodynamic therapy, a process in which the patient reports all thoughts that come to mind without censorship, and these thoughts are interpreted by the therapist.
Frontal Lobe: The front most (anterior) part of the cerebrum; anterior to the central sulcus and responsible for motor output and planning, language, judgment, and decision-making.
Functional capacity: The ability to engage in self-care (cook, clean, bathe), work, attend school, and/or engage in social relationships.
Functional distance: The frequency with which we cross paths with others.
Functional magnetic resonance imaging (fMRI): Entails the use of powerful magnets to measure the levels of oxygen within the brain that vary with changes in neural activity. That is, as the neurons in specific brain regions “work harder” when performing a specific task, they require more oxygen. By having people listen to or view social percepts in an MRI scanner, fMRI specifies the brain regions that evidence a relative increase in blood flow. In this way, fMRI provides excellent spatial information, pinpointing with millimeter accuracy, the brain regions most critical for different social processes.
Functional Magnetic Resonance Imaging (fMRI): Functional magnetic resonance imaging (fMRI): A neuroimaging technique that infers brain activity by measuring changes in oxygen levels in the blood.
Functionalism: A school of American psychology that focused on the utility of consciousness.
Gender: The cultural, social, and psychological meanings that are associated with masculinity and femininity.
Gender constancy: The awareness that gender is constant and does not change simply by changing external attributes; develops between 3 and 6 years of age.
Gender discrimination: Differential treatment on the basis of gender.
Gender identity: A person’s psychological sense of being male or female.
Gender roles: The behaviors, attitudes, and personality traits that are designated as either masculine or feminine in a given culture.
Gender schema theory: This theory of how children form their own gender roles argues that children actively organize others’ behavior, activities, and attributes into gender categories or schemas.
Gender schemas: Organized beliefs and expectations about maleness and femaleness that guide children’s thinking about gender.
Gender stereotypes: The beliefs and expectations people hold about the typical characteristics, preferences, and behaviors of men and women.
Genderfluid: An individual who may identify as male, female, both, or neither at different times and in different circumstances.
Genderqueer or gender nonbinary: An umbrella term used to describe a wide range of individuals who do not identify with and/or conform to the gender binary.
Gene: A specific deoxyribonucleic acid (DNA) sequence that codes for a specific polypeptide or protein or an observable inherited trait.
Gene Selection Theory: The modern theory of evolution by selection by which differential gene replication is the defining process of evolutionary change.
General Adaptation Syndrome: A three-phase model of stress, which includes a mobilization of physiological resources phase, a coping phase, and an exhaustion phase (i.e., when an organism fails to cope with the stress adequately and depletes its resources).
Generalizability: Related to whether the results from the sample can be generalized to a larger population.
Generalize: In research, the degree to which one can extend conclusions drawn from the findings of a study to other groups or situations not included in the study.
Generalized anxiety disorder (GAD): Excessive worry about everyday things that is at a level that is out of proportion to the specific causes of worry.
Genome-wide association study (GWAS): A study that maps DNA polymorphisms in affected individuals and controls matched for age, sex, and ethnic background with the aim of identifying causal genetic variants.
Genotype: The DNA content of a cell’s nucleus, whether a trait is externally observable or not.
Gestalt psychology: An attempt to study the unity of experience.
Goal: The cognitive representation of a desired state (outcome).
Goal-directed behavior: Instrumental behavior that is influenced by the animal’s knowledge of the association between the behavior and its consequence and the current value of the consequence. Sensitive to the reinforcer devaluation effect.
Goodness of fit: The match or synchrony between a child’s temperament and characteristics of parental care that contributes to positive or negative personality development. A good “fit” means that parents have accommodated to the child’s temperamental attributes, and this contributes to positive personality growth and better adjustment.
Grandiosity: Inflated self-esteem or an exaggerated sense of self-importance and self-worth (e.g., believing one has special powers or superior abilities).
Group cohesion: The solidarity or unity of a group resulting from the development of strong and mutual interpersonal bonds among members and group-level forces that unify the group, such as shared commitment to group goals.
Group polarization: The tendency for members of a deliberating group to move to a more extreme position, with the direction of the shift determined by the majority or average of the members’ predeliberation preferences.
Groupthink: A set of negative group-level processes, including illusions of invulnerability, self-censorship, and pressures to conform, that occur when highly cohesive groups seek concurrence when making a decision.
Gustation: Ability to process gustatory stimuli. Also called taste.
Habit: Instrumental behavior that occurs automatically in the presence of a stimulus and is no longer influenced by the animal’s knowledge of the value of the reinforcer. Insensitive to the reinforcer devaluation effect.
Hallucinations: Perceptual experiences that occur even when there is no stimulus in the outside world generating the experiences. They can be auditory, visual, olfactory (smell), gustatory (taste), or somatic (touch).
Hallucinogens: Hallucinogens: substances that, when ingested, alter a person’s perceptions, often by creating hallucinations that are not real or distorting their perceptions of time.
Happiness: The popular word for subjective well-being. Scientists sometimes avoid using this term because it can refer to different things, such as feeling good, being satisfied, or even the causes of high subjective well-being.
Health: According to the World Health Organization, it is a complete state of physical, mental, and social well-being and not merely the absence of disease or infirmity.
Health behavior: Any behavior that is related to health—either good or bad.
Helpfulness: A component of the prosocial personality orientation; describes individuals who have been helpful in the past and, because they believe they can be effective with the help they give, are more likely to be helpful in the future.
Helping: Prosocial acts that typically involve situations in which one person is in need and another provides the necessary assistance to eliminate the other’s need.
Heritability coefficient: An easily misinterpreted statistical construct that purports to measure the role of genetics in the explanation of differences among individuals.
Heterogamy: Partnering with someone who is unlike you in a meaningful way.
Heuristics: A mental shortcut or rule of thumb that reduces complex mental problems to more simple rule-based decisions.
Heuristics: cognitive (or thinking) strategies that simplify decision making by using mental short-cuts
HEXACO model: The HEXACO model is an alternative to the Five-Factor Model. The HEXACO model includes six traits, five of which are variants of the traits included in the Big Five (Emotionality [E], Extraversion [X], Agreeableness [A], Conscientiousness [C], and Openness [O]). The sixth factor, Honesty-Humility [H], is unique to this model.
Highlighting a goal: Prioritizing a focal goal over other goals or temptations by putting more effort into the focal goal.
Histone acetyltransferases (HATs) and histone deacetylases (HDACs): HATs are enzymes that transfer acetyl groups to specific positions on histone tails, promoting an “open” chromatin state and transcriptional activation. HDACs remove these acetyl groups, resulting in a “closed” chromatin state and transcriptional repression.
Histone modifications: Posttranslational modifications of the N-terminal “tails” of histone proteins that serve as a major mode of epigenetic regulation. These modifications include acetylation, phosphorylation, methylation, sumoylation, ubiquitination, and ADP-ribosylation.
Homogamy: Partnering with someone who is like you in a meaningful way.
Homophily: Adolescents tend to associate with peers who are similar to themselves.
Hostile attribution bias: The tendency to perceive ambiguous actions by others as aggressive.
Hostile expectation bias: The tendency to assume that people will react to potential conflicts with aggression.
Hostile perception bias: The tendency to perceive social interactions in general as being aggressive.
Hostile sexism: The negative element of ambivalent sexism, which includes the attitudes that women are inferior and incompetent relative to men.
Hostility: An experience or trait with cognitive, behavioral, and emotional components. It often includes cynical thoughts, feelings of emotion, and aggressive behavior.
Hot cognition: The mental processes that are influenced by desires and feelings.
Hypersomnia: Excessive daytime sleepiness, including difficulty staying awake or napping, or prolonged sleep episodes.
Hypnosis: Hypnosis: the state of consciousness whereby a person is highly responsive to the suggestions of another; this state usually involves a dissociation with one’s environment and an intense focus on a single stimulus, which is usually accompanied by a sense of relaxation
Hypnotherapy: Hypnotherapy: The use of hypnotic techniques such as relaxation and suggestion to help engineer desirable change such as lower pain or quitting smoking.
Hypotheses: A logical idea that can be tested.
Hypothesis: A tentative explanation that is subject to testing.
Identical twins: Two individual organisms that originated from the same zygote and therefore are genetically identical or very similar. The epigenetic profiling of identical twins discordant for disease is a unique experimental design as it eliminates the DNA sequence-, age-, and sex-differences from consideration.
Identity: Sometimes used synonymously with the term “self,” identity means many different things in psychological science and in other fields (e.g., sociology). In this module, I adopt Erik Erikson’s conception of identity as a developmental task for late adolescence and young adulthood. Forming an identity in adolescence and young adulthood involves exploring alternative roles, values, goals, and relationships and eventually committing to a realistic agenda for life that productively situates a person in the adult world of work and love. In addition, identity formation entails commitments to new social roles and reevaluation of old traits, and importantly, it brings with it a sense of temporal continuity in life, achieved though the construction of an integrative life story.
Identity achievement: Individuals have explored different options and then made commitments.
Identity diffusion: Adolescents neither explore nor commit to any roles or ideologies.
Imaginal performances: When imagining yourself doing well increases self-efficacy.
Impact bias: A bias in affective forecasting in which one overestimates the strength or intensity of emotion one will experience after some event.
Implemental phase: The second of the two basic stages of self-regulation in which individuals plan specific actions related to their selected goal.
Implicit Association Test: Implicit Association Test (IAT) measures relatively automatic biases that favor own group relative to other groups.
Implicit Association Test: An implicit attitude task that assesses a person’s automatic associations between concepts by measuring the response times in pairing the concepts.
Implicit Associations Test: Implicit Associations Test (IAT): A computer reaction time test that measures a person’s automatic associations with concepts. For instance, the IAT could be used to measure how quickly a person makes positive or negative evaluations of members of various ethnic groups.
Implicit attitude: An attitude that a person cannot verbally or overtly state.
Implicit measures of attitudes: Measures of attitudes in which researchers infer the participant’s attitude rather than having the participant explicitly report it.
Inattentional blindness: The failure to notice a fully visible object when attention is devoted to something else.
Independent: Two characteristics or traits are separate from one another-- a person can be high on one and low on the other, or vice-versa. Some correlated traits are relatively independent in that although there is a tendency for a person high on one to also be high on the other, this is not always the case.
Independent self: The tendency to define the self in terms of stable traits that guide behavior.
Independent variable: The variable the researcher manipulates and controls in an experiment.
Individual differences: Ways in which people differ in terms of their behavior, emotion, cognition, and development.
Individualism: The cultural trend in which the primary unit of measurement is the individual. Individualists are likely to emphasize uniqueness and personal aspirations over social duty.
Individualism: Belief system that exalts freedom, independence, and individual choice as high values.
Individualistic Perspective: A focus on the individual where the influence of larger environmental or societal factors is ignored.
Induction: To draw general conclusions from specific observations.
Inductive reasoning: A form of reasoning in which a general conclusion is inferred from a set of observations (e.g., noting that “the driver in that car was texting; he just cut me off then ran a red light!” (a specific observation), which leads to the general conclusion that texting while driving is dangerous).
Industrialized countries: The economically advanced countries of the world, in which most of the world’s wealth is concentrated.
Instrumental conditioning: Process in which animals learn about the relationship between their behaviors and their consequences. Also known as operant conditioning.
Integrative or eclectic psychotherapy: Also called integrative psychotherapy, this term refers to approaches combining multiple orientations (e.g., CBT with psychoanalytic elements).
Integrative or eclectic psychotherapy: Also called integrative psychotherapy, this term refers to approaches combining multiple orientations (e.g., CBT with psychoanalytic elements).
Interdependence: Because everything is connected, changing one aspect of an environment will have many ripple effects.
Interdependent self: The tendency to define the self in terms of social contexts that guide behavior.
Internal bodily or somatic cues: Physical sensations that serve as triggers for anxiety or as reminders of past traumatic events.
Interoceptive avoidance: Avoidance of situations or activities that produce sensations of physical arousal similar to those occurring during a panic attack or intense fear response.
Interpersonal: This refers to the relationship or interaction between two or more individuals in a group. Thus, the interpersonal functions of emotion refer to the effects of one’s emotion on others, or to the relationship between oneself and others.
Intersexual selection: A process of sexual selection by which evolution (change) occurs as a consequences of the mate preferences of one sex exerting selection pressure on members of the opposite sex.
Intimate partner violence: Physical, sexual, or psychological abuse inflicted by a partner.
Intrapersonal: This refers to what occurs within oneself. Thus, the intrapersonal functions of emotion refer to the effects of emotion to individuals that occur physically inside their bodies and psychologically inside their minds.
Intrasexual competition: A process of sexual selection by which members of one sex compete with each other, and the victors gain preferential mating access to members of the opposite sex.
Intrinsic motivation: Motivation stemming from the benefits associated with the process of pursuing a goal such as having a fulfilling experience.
Introspection: A method of focusing on internal processes.
Jet Lag: Jet Lag: The state of being fatigued and/or having difficulty adjusting to a new time zone after traveling a long distance (across multiple time zones).
Joint family: A family comprised of at least three generations living together. Joint families often include many members of the extended family.
Just noticeable difference (JND): The smallest difference needed in order to differentiate two stimuli. (see Differential Threshold)
Kin selection: According to evolutionary psychology, the favoritism shown for helping our blood relatives, with the goals of increasing the likelihood that some portion of our DNA will be passed on to future generations.
Law of effect: The idea that instrumental or operant responses are influenced by their effects. Responses that are followed by a pleasant state of affairs will be strengthened and those that are followed by discomfort will be weakened. Nowadays, the term refers to the idea that operant or instrumental behaviors are lawfully controlled by their consequences.
Learned helplessness: The belief, as someone who is abused, that one has no control over his or her situation.
Levels of analysis: In science, there are complementary understandings and explanations of phenomena.
Levels of Analysis: Complementary frameworks for analyzing and understanding a phenomenon.
Lexical hypothesis: The lexical hypothesis is the idea that the most important differences between people will be encoded in the language that we use to describe people. Therefore, if we want to know which personality traits are most important, we can look to the language that people use to describe themselves and others.
Life satisfaction: A person reflects on their life and judges to what degree it is going well, by whatever standards that person thinks are most important for a good life.
Light adaptation: Adjustment of eye to high levels of light.
Limbic System: Includes the subcortical structures of the amygdala and hippocampal formation as well as some cortical structures; responsible for aversion and gratification.
Limited capacity: The notion that humans have limited mental resources that can be used at a given time.
Longitudinal study: A study that follows the same group of individuals over time.
Magnetic resonance imaging: A set of techniques that uses strong magnets to measure either the structure of the brain (e.g., gray matter and white matter) or how the brain functions when a person performs cognitive tasks (e.g., working memory or episodic memory) or other types of tasks.
Malingering: Fabrication or exaggeration of medical symptoms to achieve secondary gain (e.g., receive medication, avoid school).
Margin of error: The expected amount of random variation in a statistic; often defined for 95% confidence level.
Marriage market: The process through which prospective spouses compare assets and liabilities of available partners and choose the best available mate.
Mechanoreceptors: Mechanical sensory receptors in the skin that response to tactile stimulation.
Melatonin: Melatonin: A hormone associated with increased drowsiness and sleep.
Memory traces: A term indicating the change in the nervous system representing an event.
Mere-exposure effect: The notion that people like people/places/things merely because they are familiar with them.
Mind–body connection: The idea that our emotions and thoughts can affect how our body functions.
Mindfulness: Mindfulness: a state of heightened focus on the thoughts passing through one’s head, as well as a more controlled evaluation of those thoughts (e.g., do you reject or support the thoughts you’re having?)
Mindfulness: A process that reflects a nonjudgmental, yet attentive, mental state.
Mindfulness-based therapy: A form of psychotherapy grounded in mindfulness theory and practice, often involving meditation, yoga, body scan, and other features of mindfulness exercises.
Misinformation effect: A memory error caused by exposure to incorrect information between the original event (e.g., a crime) and later memory test (e.g., an interview, lineup, or day in court).
Misinformation effect: When erroneous information occurring after an event is remembered as having been part of the original event.
Mixed-Methods Research: Thoughtful combining of qualitative and quantitative data collection methods.
Mnemonic devices: A strategy for remembering large amounts of information, usually involving imaging events occurring on a journey or with some other set of memorized cues.
Mock witnesses: A research subject who plays the part of a witness in a study.
Model minority: A minority group whose members are perceived as achieving a higher degree of socioeconomic success than the population average.
Modern family: A family based on commitment, caring, and close emotional ties.
Mood-congruent memory: The tendency to be better able to recall memories that have a mood similar to our current mood.
Moratorium: State in which adolescents are actively exploring options but have not yet made identity commitments.
Motivated skepticism: A form of bias that can result from having a directional goal in which one is skeptical of evidence despite its strength because it goes against what one wants to believe.
Motivation: The psychological driving force that enables action in the course of goal pursuit.
Multigenerational homes: Homes with more than one adult generation.
Multimodal perception: The effects that concurrent stimulation in more than one sensory modality has on the perception of events and objects in the world.
Myelin Sheath: Fatty tissue, that insulates the axons of the neurons; myelin is necessary for normal conduction of electrical impulses among neurons.
Narrative identity: An internalized and evolving story of the self designed to provide life with some measure of temporal unity and purpose. Beginning in late adolescence, people craft self-defining stories that reconstruct the past and imagine the future to explain how the person came to be the person that he or she is becoming.
Natural selection: Differential reproductive success as a consequence of differences in heritable attributes.
Need for closure: The desire to come to a decision that will resolve ambiguity and conclude an issue.
Negative feelings: Undesirable and unpleasant feelings that people tend to avoid if they can. Moods and emotions such as depression, anger, and worry are examples.
Negative state relief model: An egoistic theory proposed by Cialdini et al. (1982) that claims that people have learned through socialization that helping can serve as a secondary reinforcement that will relieve negative moods such as sadness.
Neglect: Failure to care for someone properly.
Nervous System: The body’s network for electrochemical communication. This system includes all the nerves cells in the body.
Neural impulse: An electro-chemical signal that enables neurons to communicate.
Neurodevelopmental: Processes that influence how the brain develops either in utero or as the child is growing up.
Neurons: Individual brain cells
Neuroticism: A personality trait that reflects the tendency to be interpersonally sensitive and the tendency to experience negative emotions like anxiety, fear, sadness, and anger.
Neurotransmitters: Chemical substance released by the presynaptic terminal button that acts on the postsynaptic cell.
Nociception: Our ability to sense pain.
Nonconscious goal activation: When activation occurs outside a person’s awareness, such that the person is unaware of the reasons behind her goal-directed thoughts and behaviors.
Non-industrialized countries: The less economically advanced countries that comprise the majority of the world’s population. Most are currently developing at a rapid rate.
Nuclear families: A core family unit comprised of only the parents and children.
Null-hypothesis significance testing (NHST): In statistics, a test created to determine the chances that an alternative hypothesis would produce a result as extreme as the one observed if the null hypothesis were actually true.
Objective: Being free of personal bias.
Observational learning: Learning by observing the behavior of others.
Observational learning: Learning by observing the behavior of others.
Obsessive-compulsive disorder (OCD): A disorder characterized by the desire to engage in certain behaviors excessively or compulsively in hopes of reducing anxiety. Behaviors include things such as cleaning, repeatedly opening and closing doors, hoarding, and obsessing over certain thoughts.
Occipital Lobe: The back most (posterior) part of the cerebrum; involved in vision.
Odorants: Chemicals transduced by olfactory receptors.
OECD countries: Members of the Organization for Economic Co-operation and Development, comprised of the world’s wealthiest countries.
Olfaction: Ability to process olfactory stimuli. Also called smell.
Olfactory epithelium: Organ containing olfactory receptors.
Open ended questions: Research questions that ask participants to answer in their own words.
Openness to Experience: A personality trait that reflects a person’s tendency to seek out and to appreciate new things, including thoughts, feelings, values, and experiences.
Operant: A behavior that is controlled by its consequences. The simplest example is the rat’s lever-pressing, which is controlled by the presentation of the reinforcer.
Operant conditioning: See instrumental conditioning.
Operational definitions: How researchers specifically measure a concept.
Opponent-process theory: Theory proposing color vision as influenced by cells responsive to pairs of colors.
Oppositional defiant disorder: A childhood behavior disorder that is characterized by stubbornness, hostility, and behavioral defiance. This disorder is highly comorbid with ADHD.
Ossicles: A collection of three small bones in the middle ear that vibrate against the tympanic membrane.
Ostracism: Excluding one or more individuals from a group by reducing or eliminating contact with the person, usually by ignoring, shunning, or explicitly banishing them.
Other-oriented empathy: A component of the prosocial personality orientation; describes individuals who have a strong sense of social responsibility, empathize with and feel emotionally tied to those in need, understand the problems the victim is experiencing, and have a heightened sense of moral obligations to be helpful.
Overconfident: The bias to have greater confidence in your judgment than is warranted based on a rational assessment.
Panic disorder (PD): A condition marked by regular strong panic attacks, and which may include significant levels of worry about future attacks.
Parameter: A numerical result summarizing a population (e.g., mean, proportion).
Parent management training: A treatment for childhood behavior problems that teaches parents how to use contingencies to more effectively manage their children’s behavior.
Parietal Lobe: The part of the cerebrum between the frontal and occipital lobes; involved in bodily sensations, visual attention, and integrating the senses.
Participant demand: When participants behave in a way that they think the experimenter wants them to behave.
Pathologizes: To define a trait or collection of traits as medically or psychologically unhealthy or abnormal.
Pavlovian conditioning: See classical conditioning.
Perceived social support: A person’s perception that others are there to help them in times of need.
Perception: The psychological process of interpreting sensory information.
Performance experiences: When past successes or failures lead to changes in self-efficacy.
Peripheral Nervous System: All of the nerve cells that connect the central nervous system to all the other parts of the body.
Permissive parenting: Parenting that is low in demandingness and high in support.
Personal distress: According to Batson’s empathy–altruism hypothesis, observers who take a detached view of a person in need will experience feelings of being “worried” and “upset” and will have an egoistic motivation for helping to relieve that distress.
Personality: Enduring predispositions that characterize a person, such as styles of thought, feelings and behavior.
Personality traits: Enduring dispositions in behavior that show differences across individuals, and which tend to characterize the person across varying types of situations.
Person-centered therapy: A therapeutic approach focused on creating a supportive environment for self-discovery.
Person-situation debate: The person-situation debate is a historical debate about the relative power of personality traits as compared to situational influences on behavior. The situationist critique, which started the person-situation debate, suggested that people overestimate the extent to which personality traits are consistent across situations.
Phantom limb: The perception that a missing limb still exists.
Phantom limb pain: Pain in a limb that no longer exists.
Phenotype: The pattern of expression of the genotype or the magnitude or extent to which it is observably expressed—an observable characteristic or trait of an organism, such as its morphology, development, biochemical or physiological properties, or behavior.
Photo spreads: A selection of normally small photographs of faces given to a witness for the purpose of identifying a perpetrator.
Physical abuse: The use of intentional physical force to cause harm.
Pinna: Outermost portion of the ear.
Placebo effect: When receiving special treatment or something new affects human behavior.
Planning fallacy: A cognitive bias in which one underestimates how long it will take to complete a task.
Pluralistic ignorance: Relying on the actions of others to define an ambiguous need situation and to then erroneously conclude that no help or intervention is necessary.
Population: A larger collection of individuals that we would like to generalize our results to.
Population: In research, all the people belonging to a particular group (e.g., the population of left handed people).
Positive feelings: Desirable and pleasant feelings. Moods and emotions such as enjoyment and love are examples.
Positron emission tomography: A technique that uses radio-labelled ligands to measure the distribution of different neurotransmitter receptors in the brain or to measure how much of a certain type of neurotransmitter is released when a person is given a specific type of drug or does a particularly cognitive task.
Positron Emission Tomography (PET): A neuroimaging technique that measures brain activity by detecting the presence of a radioactive substance in the brain that is initially injected into the bloodstream and then pulled in by active brain tissue.
Posttraumatic stress disorder (PTSD): A sense of intense fear, triggered by memories of a past traumatic event, that another traumatic event might occur. PTSD may include feelings of isolation and emotional numbing.
Practitioner-Scholar Model: A model of training of professional psychologists that emphasizes clinical practice.
Prediction error: When the outcome of a conditioning trial is different from that which is predicted by the conditioned stimuli that are present on the trial (i.e., when the US is surprising). Prediction error is necessary to create Pavlovian conditioning (and associative learning generally). As learning occurs over repeated conditioning trials, the conditioned stimulus increasingly predicts the unconditioned stimulus, and prediction error declines. Conditioning works to correct or reduce prediction error.
Prejudice: Prejudice is an evaluation or emotion toward people merely based on their group membership.
Preparedness: The idea that an organism’s evolutionary history can make it easy to learn a particular association. Because of preparedness, you are more likely to associate the taste of tequila, and not the circumstances surrounding drinking it, with getting sick. Similarly, humans are more likely to associate images of spiders and snakes than flowers and mushrooms with aversive outcomes like shocks.
Prevention: The focus on actions that stop problems before they happen by engaging in environmental change.
Prevention focus: One of two self-regulatory orientations emphasizing safety, responsibility, and security needs, and viewing goals as “oughts.” This self-regulatory focus seeks to avoid losses (the presence of negatives) and approach non-losses (the absence of negatives).
Primary auditory cortex: Area of the cortex involved in processing auditory stimuli.
Primary somatosensory cortex: Area of the cortex involved in processing somatosensory stimuli.
Primary visual cortex: Area of the cortex involved in processing visual stimuli.
Primed: A process by which a concept or behavior is made more cognitively accessible or likely to occur through the presentation of an associated concept.
Priming: Priming: the activation of certain thoughts or feelings that make them easier to think of and act upon
Priming: The process by which exposing people to one stimulus makes certain thoughts, feelings or behaviors more salient.
Principle of inverse effectiveness: The finding that, in general, for a multimodal stimulus, if the response to each unimodal component (on its own) is weak, then the opportunity for multisensory enhancement is very large. However, if one component—by itself—is sufficient to evoke a strong response, then the effect on the response gained by simultaneously processing the other components of the stimulus will be relatively small.
Probability: A measure of the degree of certainty of the occurrence of an event.
Probability values: In statistics, the established threshold for determining whether a given value occurs by chance.
Problem-focused coping: A set of coping strategies aimed at improving or changing stressful situations.
Processing speed: The speed with which an individual can perceive auditory or visual information and respond to it.
Progress: The perception of reducing the discrepancy between one’s current state and one’s desired state in goal pursuit.
Promotion focus: One of two self-regulatory orientations emphasizing hopes, accomplishments, and advancement needs, and viewing goals as “ideals.” This self-regulatory focus seeks to approach gains (the presence of positives) and avoid non-gains (the absence of positives).
Prosocial behavior: Social behavior that benefits another person.
Prosocial personality orientation: A measure of individual differences that identifies two sets of personality characteristics (other-oriented empathy, helpfulness) that are highly correlated with prosocial behavior.
Proximity: Physical nearness.
Pseudoscience: Beliefs or practices that are presented as being scientific, or which are mistaken for being scientific, but which are not scientific (e.g., astrology, the use of celestial bodies to make predictions about human behaviors, and which presents itself as founded in astronomy, the actual scientific study of celestial objects. Astrology is a pseudoscience unable to be falsified, whereas astronomy is a legitimate scientific discipline).
Psychoanalytic therapy: Sigmund Freud’s therapeutic approach focusing on resolving unconscious conflicts.
Psychodynamic therapy: Treatment applying psychoanalytic principles in a briefer, more individualized format.
Psychological abuse: Aggressive behavior intended to control a partner.
Psychological adaptations: Mechanisms of the mind that evolved to solve specific problems of survival or reproduction; conceptualized as information processing devices.
Psychological control: Parents’ manipulation of and intrusion into adolescents’ emotional and cognitive world through invalidating adolescents’ feelings and pressuring them to think in particular ways.
Psychological vulnerabilities: Influences that our early experiences have on how we view the world.
Psychomotor agitation: Increased motor activity associated with restlessness, including physical actions (e.g., fidgeting, pacing, feet tapping, handwringing).
Psychomotor retardation: A slowing of physical activities in which routine activities (e.g., eating, brushing teeth) are performed in an unusually slow manner.
Psychoneuroimmunology: A field of study examining the relationship among psychology, brain function, and immune function.
Psychopathology: Illnesses or disorders that involve psychological or psychiatric symptoms.
Psychophysics: Study of the relationships between physical stimuli and the perception of those stimuli.
Psychosomatic medicine: An interdisciplinary field of study that focuses on how biological, psychological, and social processes contribute to physiological changes in the body and health over time.
Punisher: A stimulus that decreases the strength of an operant behavior when it is made a consequence of the behavior.
Punishment: Inflicting pain or removing pleasure for a misdeed. Punishment decreases the likelihood that a behavior will be repeated.
P-value: The probability of observing a particular outcome in a sample, or more extreme, under a conjecture about the larger population or process.
Qualitative Methods: Methods involving collecting data that typically consists of words that provide comprehensive descriptions of participants’ experiences.
Quantitative genetics: Scientific and mathematical methods for inferring genetic and environmental processes based on the degree of genetic and environmental similarity among organisms.
Quantitative law of effect: A mathematical rule that states that the effectiveness of a reinforcer at strengthening an operant response depends on the amount of reinforcement earned for all alternative behaviors. A reinforcer is less effective if there is a lot of reinforcement in the environment for other behaviors.
Quantitative Methods: Methods involving collecting data in the form of numbers using standardized measures in an attempt to produce generalizable findings.
Quasi-experimental design: An experiment that does not require random assignment to conditions.
Random assignment: Assigning participants to receive different conditions of an experiment by chance.
Random assignment: Using a probability-based method to divide a sample into treatment groups.
Random sampling: Using a probability-based method to select a subset of individuals for the sample from the population.
Realism: A point of view that emphasizes the importance of the senses in providing knowledge of the external world.
Reappraisal, or Cognitive restructuring: The process of identifying, evaluating, and changing maladaptive thoughts in psychotherapy.
Received social support: The actual act of receiving support (e.g., informational, functional).
Reciprocal altruism: According to evolutionary psychology, a genetic predisposition for people to help those who have previously helped them.
Recoding: The ubiquitous process during learning of taking information in one form and converting it to another form, usually one more easily remembered.
Redemptive narratives: Life stories that affirm the transformation from suffering to an enhanced status or state. In American culture, redemptive life stories are highly prized as models for the good self, as in classic narratives of atonement, upward mobility, liberation, and recovery.
Reflexivity: The idea that the self reflects back upon itself; that the I (the knower, the subject) encounters the Me (the known, the object). Reflexivity is a fundamental property of human selfhood.
Reinforced response: Following the process of operant conditioning, the strengthening of a response following either the delivery of a desired consequence (positive reinforcement) or escape from an aversive consequence.
Reinforcer: Any consequence of a behavior that strengthens the behavior or increases the likelihood that it will be performed it again.
Reinforcer devaluation effect: The finding that an animal will stop performing an instrumental response that once led to a reinforcer if the reinforcer is separately made aversive or undesirable.
Relational aggression: Intentionally harming another person’s social relationships, feelings of acceptance, or inclusion within a group.
Renewal effect: Recovery of an extinguished response that occurs when the context is changed after extinction. Especially strong when the change of context involves return to the context in which conditioning originally occurred. Can occur after extinction in either classical or instrumental conditioning.
Representative: In research, the degree to which a sample is a typical example of the population from which it is drawn.
Representativeness heuristic: A heuristic in which the likelihood of an object belonging to a category is evaluated based on the extent to which the object appears similar to one’s mental representation of the category.
Resilience: The ability to “bounce back” from negative situations (e.g., illness, stress) to normal functioning or to simply not show poor outcomes in the face of adversity. In some cases, resilience may lead to better functioning following the negative experience (e.g., post-traumatic growth).
Retina: Cell layer in the back of the eye containing photoreceptors.
Retrieval: The process of accessing stored information.
Retroactive interference: The phenomenon whereby events that occur after some particular event of interest will usually cause forgetting of the original event.
Right-wing authoritarianism: Right-wing authoritarianism (RWA) focuses on value conflicts but endorses respect for obedience and authority in the service of group conformity.
Ritual: Rites or actions performed in a systematic or prescribed way often for an intended purpose. Example: The exchange of wedding rings during a marriage ceremony in many cultures.
Rods: Photoreceptors of the retina sensitive to low levels of light. Located around the fovea.
SAD performance only: Social anxiety disorder which is limited to certain situations that the sufferer perceives as requiring some type of performance.
Sample: The collection of individuals on which we collect data.
Sample: In research, a number of people selected from a population to serve as an example of that population.
Sample Size: The number of participants in a study. Sample size is important because it can influence the confidence scientists have in the accuracy and generalizability of their results.
Sandwich generation: Generation of people responsible for taking care of their own children as well as their aging parents.
Schema: A mental model or representation that organizes the important information about a thing, person, or event (also known as a script).
Schema: A mental representation or set of beliefs about something.
Schema (plural: schemata): A memory template, created through repeated exposure to a particular class of objects or events.
Schemas: The gender categories into which, according to gender schema theory, children actively organize others’ behavior, activities, and attributes.
Scientific theory: An explanation for observed phenomena that is empirically well-supported, consistent, and fruitful (predictive).
Scientist-practitioner model: A model of training of professional psychologists that emphasizes the development of both research and clinical skills.
Second shift: Term used to describe the unpaid work a parent, usually a mother, does in the home in terms of housekeeping and childrearing.
Second-Order Change: Involves initiating more structural, long-term, and sustainable transformational changes.
Secure attachments: Attachment style that involves being comfortable with depending on your partner and having your partner depend on you.
Security of attachment: An infant’s confidence in the sensitivity and responsiveness of a caregiver, especially when he or she is needed. Infants can be securely attached or insecurely attached.
Selective attention: The ability to select certain stimuli in the environment to process, while ignoring distracting information.
Self as autobiographical author: The sense of the self as a storyteller who reconstructs the past and imagines the future in order to articulate an integrative narrative that provides life with some measure of temporal continuity and purpose.
Self as motivated agent: The sense of the self as an intentional force that strives to achieve goals, plans, values, projects, and the like.
Self as social actor: The sense of the self as an embodied actor whose social performances may be construed in terms of more or less consistent self-ascribed traits and social roles.
Self-categorization theory: Self-categorization theory develops social identity theory’s point that people categorize themselves, along with each other into groups, favoring their own group.
Self-construal: The extent to which the self is defined as independent or as relating to others.
Self-control: The capacity to control impulses, emotions, desires, and actions in order to resist a temptation and adhere to a valued goal.
Self-efficacy: The belief that one can perform adequately in a specific situation.
Self-efficacy: The belief that you are able to effectively perform the tasks needed to attain a valued goal.
Self-esteem: The extent to which a person feels that he or she is worthy and good. The success or failure that the motivated agent experiences in pursuit of valued goals is a strong determinant of self-esteem.
Self-regulation: The processes through which individuals alter their emotions, desires, and actions in the course of pursuing a goal.
Self-regulation: The complex process through which people control their thoughts, emotions, and actions.
Self-report measure: A type of questionnaire in which participants answer questions whose answers correspond to numerical values that can be added to create an overall index of some construct.
Semantic memory: The more or less permanent store of knowledge that people have.
Sensation: The physical processing of environmental stimuli by the sense organs.
Sensory adaptation: Decrease in sensitivity of a receptor to a stimulus after constant stimulation.
Sex: Biological category of male or female as defined by physical differences in genetic composition and in reproductive anatomy and function.
Sexual abuse: The act of forcing a partner to take part in a sex act against his or her will.
Sexual harassment: A form of gender discrimination based on unwanted treatment related to sexual behaviors or appearance.
Sexual orientation: Refers to the direction of emotional and erotic attraction toward members of the opposite sex, the same sex, or both sexes.
Sexual selection: The evolution of characteristics because of the mating advantage they give organisms.
Sexual strategies theory: A comprehensive evolutionary theory of human mating that defines the menu of mating strategies humans pursue (e.g., short-term casual sex, long-term committed mating), the adaptive problems women and men face when pursuing these strategies, and the evolved solutions to these mating problems.
Shadowing: A task in which the individual is asked to repeat an auditory message as it is presented.
Shape theory of olfaction: Theory proposing that odorants of different size and shape correspond to different smells.
Shared mental model: Knowledge, expectations, conceptualizations, and other cognitive representations that members of a group have in common pertaining to the group and its members, tasks, procedures, and resources.
Signal detection: Method for studying the ability to correctly identify sensory stimuli.
Single parent family: An individual parent raising a child or children.
Situational identity: Being guided by different cultural influences in different situations, such as home versus workplace, or formal versus informal roles.
Social and cultural: Society refers to a system of relationships between individuals and groups of individuals; culture refers to the meaning and information afforded to that system that is transmitted across generations. Thus, the social and cultural functions of emotion refer to the effects that emotions have on the functioning and maintenance of societies and cultures.
Social anxiety disorder (SAD): A condition marked by acute fear of social situations which lead to worry and diminished day to day functioning.
Social brain: The set of neuroanatomical structures that allows us to understand the actions and intentions of other people.
Social cognition: The study of how people think about the social world.
Social comparison: The process of contrasting one’s personal qualities and outcomes, including beliefs, attitudes, values, abilities, accomplishments, and experiences, to those of other people.
Social dominance orientation: Social dominance orientation (SDO) describes a belief that group hierarchies are inevitable in all societies and even good, to maintain order and stability.
Social facilitation: Improvement in task performance that occurs when people work in the presence of other people.
Social identity theory: Social identity theory notes that people categorize each other into groups, favoring their own group.
Social identity theory: A theoretical analysis of group processes and intergroup relations that assumes groups influence their members’ self-concepts and self-esteem, particularly when individuals categorize themselves as group members and identify with the group.
Social integration: The size of your social network, or number of social roles (e.g., son, sister, student, employee, team member).
Social Justice: Involves the fair distribution of wealth, opportunities, and privileges that provide equal opportunities for education, health care, work, and housing.
Social Justice Orientation: Engaging in research and action with consideration of achieving the fair distribution of wealth, opportunities, and privileges that provide equal opportunities for education, health care, work, and housing.
Social learning theory: This theory of how children form their own gender roles argues that gender roles are learned through reinforcement, punishment, and modeling.
Social Learning Theory: The theory that people can learn new responses and behaviors by observing the behavior of others.
Social loafing: The reduction of individual effort exerted when people work in groups compared with when they work alone.
Social models: Authorities that are the targets for observation and who model behaviors.
Social referencing: This refers to the process whereby individuals look for information from others to clarify a situation, and then use that information to act. Thus, individuals will often use the emotional expressions of others as a source of information to make decisions about their own behavior.
Social referencing: The process by which one individual consults another’s emotional expressions to determine how to evaluate and respond to circumstances that are ambiguous or uncertain.
Social reputation: The traits and social roles that others attribute to an actor. Actors also have their own conceptions of what they imagine their respective social reputations indeed are in the eyes of others.
Social support: The perception or actuality that we have a social network that can help us in times of need and provide us with a variety of useful resources (e.g., advice, love, money).
Social zeitgeber: Zeitgeber is German for “time giver.” Social zeitgebers are environmental cues, such as meal times and interactions with other people, that entrain biological rhythms and thus sleep-wake cycle regularity.
Socioeconomic status (SES): A person’s economic and social position based on income, education, and occupation.
Sociometer model: A conceptual analysis of self-evaluation processes that theorizes self-esteem functions to psychologically monitor of one’s degree of inclusion and exclusion in social groups.
Soma: Cell body of a neuron that contains the nucleus and genetic information, and directs protein synthesis.
Somatosensation: Ability to sense touch, pain and temperature.
Somatotopic map: Organization of the primary somatosensory cortex maintaining a representation of the arrangement of the body.
Sound waves: Changes in air pressure. The physical stimulus for audition.
Spatial Resolution: A term that refers to how small the elements of an image are; high spatial resolution means the device or technique can resolve very small elements; in neuroscience it describes how small of a structure in the brain can be imaged.
Specific vulnerabilities: How our experiences lead us to focus and channel our anxiety.
Split-brain Patient: A patient who has had most or all of his or her corpus callosum severed.
Spontaneous recovery: Recovery of an extinguished response that occurs with the passage of time after extinction. Can occur after extinction in either classical or instrumental conditioning.
Standard scale: Research method in which all participants use a common scale—typically a Likert scale—to respond to questions.
Statistic: A numerical result computed from a sample (e.g., mean, proportion).
Statistical significance: A result is statistically significant if it is unlikely to arise by chance alone.
Stepfamily: A family formed, after divorce or widowhood, through remarriage.
Stereotype Content Model: Stereotype Content Model shows that social groups are viewed according to their perceived warmth and competence.
Stereotypes: Our general beliefs about the traits or behaviors shared by group of people.
Stereotypes: Stereotype is a belief that characterizes people based merely on their group membership.
Stimulants: Stimulants: a class of drugs that speed up the body’s physiological and mental processes.
Stimulus control: When an operant behavior is controlled by a stimulus that precedes it.
Storage: The stage in the learning/memory process that bridges encoding and retrieval; the persistence of memory over time.
Stress: A pattern of physical and psychological responses in an organism after it perceives a threatening event that disturbs its homeostasis and taxes its abilities to cope with the event.
Stressor: An event or stimulus that induces feelings of stress.
Structuralism: A school of American psychology that sought to describe the elements of conscious experience.
Subjective well-being: The name that scientists give to happiness—thinking and feeling that our lives are going very well.
Subjective well-being scales: Self-report surveys or questionnaires in which participants indicate their levels of subjective well-being, by responding to items with a number that indicates how well off they feel.
Subliminal perception: The ability to process information for meaning when the individual is not consciously aware of that information.
Subtle biases: Subtle biases are automatic, ambiguous, and ambivalent, but real in their consequences.
Suicidal ideation: Recurring thoughts about suicide, including considering or planning for suicide, or preoccupation with suicide.
Superadditive effect of multisensory integration: The finding that responses to multimodal stimuli are typically greater than the sum of the independent responses to each unimodal component if it were presented on its own.
Support support network: The people who care about and support a person.
Synapses: Junction between the presynaptic terminal button of one neuron and the dendrite, axon, or soma of another postsynaptic neuron.
Synaptic Gap: Also known as the synaptic cleft; the small space between the presynaptic terminal button and the postsynaptic dendritic spine, axon, or soma.
System 1: Our intuitive decision-making system, which is typically fast, automatic, effortless, implicit, and emotional.
System 2: Our more deliberative decision-making system, which is slower, conscious, effortful, explicit, and logical.
Systematic observation: The careful observation of the natural world with the aim of better understanding it. Observations provide the basic data that allow scientists to track, tally, or otherwise organize information about the natural world.
Task-specific measures of self-efficacy: Measures that ask about self-efficacy beliefs for a particular task (e.g., athletic self-efficacy, academic self-efficacy).
Tastants: Chemicals transduced by taste receptor cells.
Taste aversion learning: The phenomenon in which a taste is paired with sickness, and this causes the organism to reject—and dislike—that taste in the future.
Taste receptor cells: Receptors that transduce gustatory information.
Teamwork: The process by which members of the team combine their knowledge, skills, abilities, and other resources through a coordinated series of actions to produce an outcome.
Temperament: Early emerging differences in reactivity and self-regulation, which constitutes a foundation for personality development.
Temporal Lobe: The part of the cerebrum in front of (anterior to) the occipital lobe and below the lateral fissure; involved in vision, auditory processing, memory, and integrating vision and audition.
Temporal Resolution: A term that refers to how small a unit of time can be measured; high temporal resolution means capable of resolving very small units of time; in neuroscience it describes how precisely in time a process can be measured in the brain.
Tertiary education: Education or training beyond secondary school, usually taking place in a college, university, or vocational training program.
The Age 5-to-7 Shift: Cognitive and social changes that occur in the early elementary school years that result in the child’s developing a more purposeful, planful, and goal-directed approach to life, setting the stage for the emergence of the self as a motivated agent.
The “I”: The self as knower, the sense of the self as a subject who encounters (knows, works on) itself (the Me).
The “Me”: The self as known, the sense of the self as the object or target of the I’s knowledge and work.
Theories: Groups of closely related phenomena or observations.
Theory of mind: Children’s growing understanding of the mental states that affect people’s behavior.
Theory of mind: Emerging around the age of 4, the child’s understanding that other people have minds in which are located desires and beliefs, and that desires and beliefs, thereby, motivate behavior.
Thought-action fusion: The tendency to overestimate the relationship between a thought and an action, such that one mistakenly believes a “bad” thought is the equivalent of a “bad” action.
Tip-of-the-tongue phenomenon: The inability to pull a word from memory even though there is the sensation that that word is available.
“Top-down” or internal causes of happiness: The person’s outlook and habitual response tendencies that influence their happiness—for example, their temperament or optimistic outlook on life.
Top-down processing: Experience influencing the perception of stimuli.
Traditional family: Two or more people related by blood, marriage, and—occasionally-- by adoption.
Trance States: Trance: a state of consciousness characterized by the experience of “out-of-body possession,” or an acute dissociation between one’s self and the current, physical environment surrounding them.
Transduction: The conversion of one form of energy into another.
Transgender: A term used to describe individuals whose gender does not match their biological sex.
Trichromatic theory: Theory proposing color vision as influenced by three different cones responding preferentially to red, green and blue.
Twin studies: A behavior genetic research method that involves comparison of the similarity of identical (monozygotic; MZ) and fraternal (dizygotic; DZ) twins.
Two-parent family: A family consisting of two parents—typical both of the biological parents-- and their children.
Tympanic membrane: Thin, stretched membrane in the middle ear that vibrates in response to sound. Also called the eardrum.
Type A Behavior: Type A behavior is characterized by impatience, competitiveness, neuroticism, hostility, and anger.
Type B Behavior: Type B behavior reflects the absence of Type A characteristics and is represented by less competitive, aggressive, and hostile behavior patterns.
Type I error: In statistics, the error of rejecting the null hypothesis when it is true.
Type II error: In statistics, the error of failing to reject the null hypothesis when it is false.
Unconditional positive regard: In person-centered therapy, an attitude of warmth, empathy and acceptance adopted by the therapist in order to foster feelings of inherent worth in the patient.
Unconditioned response (UR): In classical conditioning, an innate response that is elicited by a stimulus before (or in the absence of) conditioning.
Unconditioned stimulus (US): In classical conditioning, the stimulus that elicits the response before conditioning occurs.
Uninvolved parenting: Parenting that is low in demandingness and low in support.
Value: Belief about the way things should be.
Value judgment: An assessment—based on one’s own preferences and priorities—about the basic “goodness” or “badness” of a concept or practice.
Value-free research: Research that is not influenced by the researchers’ own values, morality, or opinions.
Ventral pathway: Pathway of visual processing. The “what” pathway.
Verbal persuasion: When trusted people (friends, family, experts) influence your self-efficacy for better or worse by either encouraging or discouraging you about your ability to succeed.
Vestibular system: Parts of the inner ear involved in balance.
Vicarious performances: When seeing other people succeed or fail leads to changes in self-efficacy.
Vicarious reinforcement: Learning that occurs by observing the reinforcement or punishment of another person.
Violence: Aggression intended to cause extreme physical harm, such as injury or death.
Weber’s law: States that just noticeable difference is proportional to the magnitude of the initial stimulus.
Well-being: The experience of mental and physical health and the absence of disorder.
Working memory: The ability to maintain information over a short period of time, such as 30 seconds or less.
Working models: An understanding of how relationships operate; viewing oneself as worthy of love and others as trustworthy.