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.
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.
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.
Anhedonia: Loss of interest or pleasure in activities one previously found enjoyable or rewarding.
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.
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.
Autobiographical memory: Memory for the events of one’s life.
Automatic: Automatic biases are unintended, immediate, and irresistible.
Automatic thoughts: Thoughts that occur spontaneously; often used to describe problematic thoughts that maintain mental disorders.
Aversive racism: Aversive racism is unexamined racial bias that the person does not intend and would reject, but that avoids inter-racial contact.
Awareness: A conscious experience or the capability of having conscious experiences, which is distinct from self-awareness, the conscious understanding of one’s own existence and individuality.
Axon: Part of the neuron that extends off the soma, splitting several times to connect with other neurons; main output of the neuron.
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.
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.
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.
Bottom-up processing: Building up to perceptual experience from individual pieces.
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.
Categorize: To sort or arrange different items into classes or categories.
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.
Chemical senses: Our ability to process the environmental stimuli of smell and taste.
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).
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-behavioral therapy (CBT): A family of approaches with the goal of changing the thoughts and behaviors that influence psychopathology.
Comorbidity: Describes a state of having more than one psychological or physical disorder at a given time.
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.
Conformity: Changing one’s attitude or behavior to match a perceived social norm.
Confounds: Factors that undermine the ability to draw causal inferences from an experiment.
Conscious experience: The first-person perspective of a mental event, such as feeling some sensory input, a memory, an idea, an emotion, a mood, or a continuous temporal sequence of happenings.
Consolidation: The process occurring after encoding that is believed to stabilize memory traces.
Contemplative science: A research area concerned with understanding how contemplative practices such as meditation can affect individuals, including changes in their behavior, their emotional reactivity, their cognitive abilities, and their brains. Contemplative science also seeks insights into conscious experience that can be gained from first-person observations by individuals who have gained extraordinary expertise in introspection.
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.”
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: Measures the association between two variables, or how they go together.
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.
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.
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.
Descriptive norm: The perception of what most people do in a given situation.
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.
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.
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.
Distinctiveness: The principle that unusual events (in a context of similar events) will be recalled and recognized better than uniform (nondistinctive) events.
Dorsal pathway: Pathway of visual processing. The “where” pathway.
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.
Electroencephalography (EEG): A neuroimaging technique that measures electrical brain activity via multiple electrodes on the scalp.
Emotion-focused coping: Coping strategy aimed at reducing the negative emotions associated with a stressful event.
Empirical methods: Approaches to inquiry that are tied to actual measurement and observation.
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.
Engrams: A term indicating the change in the nervous system representing an event; also, memory trace.
Episodic memory: Memory for events in a particular time and place.
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.
Experimenter expectations: When the experimenter’s expectations influence the outcome of a study.
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.”
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-person perspective: Observations made by individuals about their own conscious experiences, also known as introspection or a subjective point of view. Phenomenology refers to the description and investigation of such observations.
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.
Flavor: The combination of smell and taste.
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 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.
G: Short for “general factor” and is often used to be synonymous with intelligence itself.
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).
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.
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.
Grandiosity: Inflated self-esteem or an exaggerated sense of self-importance and self-worth (e.g., believing one has special powers or superior abilities).
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.
Hawthorne Effect: An effect in which individuals change or improve some facet of their behavior as a result of their awareness of being observed.
Hawthorne Studies: A series of well-known studies conducted under the leadership of Harvard University researchers, which changed the perspective of scholars and practitioners about the role of human psychology in relation to work behavior.
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.
Hostility: An experience or trait with cognitive, behavioral, and emotional components. It often includes cynical thoughts, feelings of emotion, and aggressive behavior.
Hypersomnia: Excessive daytime sleepiness, including difficulty staying awake or napping, or prolonged sleep episodes.
Hypotheses: A logical idea that can be tested.
Implicit Association Test: Implicit Association Test (IAT) measures relatively automatic biases that favor own group relative to other groups.
Independent variable: The variable the researcher manipulates and controls in an experiment.
Industrial/Organizational psychology: Scientific study of behavior in organizational settings and the application of psychology to understand work behavior.
Informational influence: Conformity that results from a concern to act in a socially approved manner as determined by how others act.
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).
Intelligence: An individual’s cognitive capability. This includes the ability to acquire, process, recall and apply information.
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.
IQ: Short for “intelligence quotient.” This is a score, typically obtained from a widely used measure of intelligence that is meant to rank a person’s intellectual ability against that of others.
Just noticeable difference (JND): The smallest difference needed in order to differentiate two stimuli. (see Differential Threshold)
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.
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.
Longitudinal study: A study that follows the same group of individuals over time.
Mechanoreceptors: Mechanical sensory receptors in the skin that response to tactile stimulation.
Memory traces: A term indicating the change in the nervous system representing an event.
Mind–body connection: The idea that our emotions and thoughts can affect how our body functions.
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: When erroneous information occurring after an event is remembered as having been part of the original event.
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.
Model minority: A minority group whose members are perceived as achieving a higher degree of socioeconomic success than the population average.
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.
Nervous System: The body’s network for electrochemical communication. This system includes all the nerves cells in the body.
Neurons: Individual brain cells
Neurotransmitters: Chemical substance released by the presynaptic terminal button that acts on the postsynaptic cell.
Nociception: Our ability to sense pain.
Norm: Assessments are given to a representative sample of a population to determine the range of scores for that population. These “norms” are then used to place an individual who takes that assessment on a range of scores in which he or she is compared to the population at large.
Normative influence: Conformity that results from a concern for what other people think of us.
Obedience: Responding to an order or command from a person in a position of authority.
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.
Olfaction: Ability to process olfactory stimuli. Also called smell.
Olfactory epithelium: Organ containing olfactory receptors.
O*Net: A vast database of occupational information containing data on hundreds of jobs.
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.
Ossicles: A collection of three small bones in the middle ear that vibrate against the tympanic membrane.
Panic disorder (PD): A condition marked by regular strong panic attacks, and which may include significant levels of worry about future attacks.
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.
Pavlovian conditioning: See classical conditioning.
Perception: The psychological process of interpreting sensory information.
Peripheral Nervous System: All of the nerve cells that connect the central nervous system to all the other parts of the body.
Person-centered therapy: A therapeutic approach focused on creating a supportive environment for self-discovery.
Phantom limb: The perception that a missing limb still exists.
Phantom limb pain: Pain in a limb that no longer exists.
Pinna: Outermost portion of the ear.
Placebo effect: When receiving special treatment or something new affects human behavior.
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.
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.
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.
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.
Problem-focused coping: A set of coping strategies aimed at improving or changing stressful situations.
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 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.
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.
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.
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.
Reappraisal, or Cognitive restructuring: The process of identifying, evaluating, and changing maladaptive thoughts in psychotherapy.
Recoding: The ubiquitous process during learning of taking information in one form and converting it to another form, usually one more easily remembered.
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.
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.
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.
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.
Schema: A mental representation or set of beliefs about something.
Scientist-practitioner model: The dual focus of I/O psychology, which entails practical questions motivating scientific inquiry to generate knowledge about the work-person interface and the practitioner side applying this scientific knowledge to organizational problems.
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-efficacy: The belief that one can perform adequately in a specific situation.
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.
Shape theory of olfaction: Theory proposing that odorants of different size and shape correspond to different smells.
Signal detection: Method for studying the ability to correctly identify sensory stimuli.
Social anxiety disorder (SAD): A condition marked by acute fear of social situations which lead to worry and diminished day to day functioning.
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 identity theory: Social identity theory notes that people categorize each other into groups, favoring their own group.
Social integration: The size of your social network, or number of social roles (e.g., son, sister, student, employee, team member).
Social Learning Theory: The theory that people can learn new responses and behaviors by observing the behavior of others.
Social models: Authorities that are the targets for observation and who model behaviors.
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.
Society for Industrial and Organizational Psychology (SIOP): A professional organization bringing together academics and practitioners who work in I/O psychology and related areas. It is Division 14 of the American Psychological Association (APA).
Socioeconomic status (SES): A person’s economic and social position based on income, education, and occupation.
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.
Standardize: Assessments that are given in the exact same manner to all people . With regards to intelligence tests standardized scores are individual scores that are computed to be referenced against normative scores for a population (see “norm”).
Stereotype Content Model: Stereotype Content Model shows that social groups are viewed according to their perceived warmth and competence.
Stereotype threat: The phenomenon in which people are concerned that they will conform to a stereotype or that their performance does conform to that stereotype, especially in instances in which the stereotype is brought to their conscious awareness.
Stereotypes: Stereotype is a belief that characterizes people based merely on their group membership.
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.
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.
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.
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.
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.
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.
Theories: Groups of closely related phenomena or observations.
Third-person perspective: Observations made by individuals in a way that can be independently confirmed by other individuals so as to lead to general, objective understanding. With respect to consciousness, third-person perspectives make use of behavioral and neural measures related to conscious experiences.
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.
Top-down processing: Experience influencing the perception of stimuli.
Transduction: The conversion of one form of energy into another.
Trichromatic theory: Theory proposing color vision as influenced by three different cones responding preferentially to red, green and blue.
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.
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.
Ventral pathway: Pathway of visual processing. The “what” pathway.
Vestibular system: Parts of the inner ear involved in balance.
Vicarious reinforcement: Learning that occurs by observing the reinforcement or punishment of another person.
Weber’s law: States that just noticeable difference is proportional to the magnitude of the initial stimulus.
Work and organizational psychology: Preferred name for I/O psychology in Europe.