Vocabulary
- Absolute threshold
- The smallest amount of stimulation needed for detection by a sense.
- Action Potential
- A transient all-or-nothing electrical current that is conducted down the axon when the membrane potential reaches the threshold of excitation.
- Affective forecasting
- Predicting how one will feel in the future after some event or decision.
- Agnosia
- Loss of the ability to perceive stimuli.
- Agonists
- A drug that increases or enhances a neurotransmitter’s effect.
- Amygdala
- A region located deep within the brain in the medial area (toward the center) of the temporal lobes (parallel to the ears). If you could draw a line through your eye sloping toward the back of your head and another line between your two ears, the amygdala would be located at the intersection of these lines. The amygdala is involved in detecting relevant stimuli in our environment and has been implicated in emotional responses.
- 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.
- Anosmia
- Loss of the ability to smell.
- Antagonist
- A drug that blocks a neurotransmitter’s effect.
- Anterograde amnesia
- Inability to form new memories for facts and events after the onset of amnesia.
- Attitude
- A psychological tendency that is expressed by evaluating a particular entity with some degree of favor or disfavor.
- Audience design
- Constructing utterances to suit the audience’s knowledge.
- 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
- A behavior or process has one or more of the following features: unintentional, uncontrollable, occurring outside of conscious awareness, and cognitively efficient.
- Automatic process
- When a thought, feeling, or behavior occurs with little or no mental effort. Typically, automatic processes are described as involuntary or spontaneous, often resulting from a great deal of practice or repetition.
- 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.
- Axon
- Part of the neuron that extends off the soma, splitting several times to connect with other neurons; main output of the neuron.
- Biases
- The systematic and predictable mistakes that influence the judgment of even very talented human beings.
- 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.
- 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.
- Causality
- In research, the determination that one variable causes—is responsible for—an effect.
- 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.
- Chunk
- The process of grouping information together using our knowledge.
- Chutes and Ladders
- A numerical board game that seems to be useful for building numerical knowledge.
- Classical conditioning
- Describes stimulus-stimulus associative learning.
- Cochlea
- Spiral bone structure in the inner ear containing auditory hair cells.
- Common ground
- Information that is shared by people who engage in a conversation.
- Concrete operations stage
- Piagetian stage between ages 7 and 12 when children can think logically about concrete situations but not engage in systematic scientific reasoning.
- Cones
- Photoreceptors of the retina sensitive to color. Located primarily in the fovea.
- Conservation problems
- Problems pioneered by Piaget in which physical transformation of an object or set of objects changes a perceptually salient dimension but not the quantity that is being asked about.
- Consolidation
- The process occurring after encoding that is believed to stabilize memory traces.
- Consolidation
- Process by which a memory trace is stabilized and transformed into a more durable form.
- Continuous development
- Ways in which development occurs in a gradual incremental manner, rather than through sudden jumps.
- 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).
- 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.
- Cortisol
- A hormone made by the adrenal glands, within the cortex. Cortisol helps the body maintain blood pressure and immune function. Cortisol increases when the body is under stress.
- 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.
- Dark adaptation
- Adjustment of eye to low levels of light.
- Data (also called observations)
- In research, information systematically collected for analysis and interpretation.
- Decay
- The fading of memories with the passage of time.
- Declarative memory
- Conscious memories for facts and events.
- 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).
- Dendrites
- Part of a neuron that extends away from the cell body and is the main input to the neuron.
- Depth perception
- The ability to actively perceive the distance from oneself of objects in the environment.
- Dichotic listening
- A task in which different audio streams are presented to each ear. Typically, people are asked to monitor one stream while ignoring the other.
- Dichotic listening
- An experimental task in which two messages are presented to different ears.
- 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.
- Directional goals
- The motivation to reach a particular outcome or judgment.
- Discontinuous development
- Discontinuous development
- Dissociative amnesia
- Loss of autobiographical memories from a period in the past in the absence of brain injury or disease.
- Distinctiveness
- The principle that unusual events (in a context of similar events) will be recalled and recognized better than uniform (nondistinctive) events.
- 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.
- Dorsal pathway
- Pathway of visual processing. The “where” pathway.
- 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.
- Electroencephalogram
- A measure of electrical activity generated by the brain’s neurons.
- Electroencephalography (EEG)
- A neuroimaging technique that measures electrical brain activity via multiple electrodes on the scalp.
- Empirical
- Concerned with observation and/or the ability to verify a claim.
- Encoding
- Process by which information gets into memory.
- Encoding
- The initial experience of perceiving and learning events.
- Encoding
- The pact of putting information into memory.
- 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.
- Enzyme
- A protein produced by a living organism that allows or helps a chemical reaction to occur.
- Enzyme induction
- Process through which a drug can enhance the production of an enzyme.
- Episodic memory
- Memory for events in a particular time and place.
- 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.
- Explicit attitude
- An attitude that is consciously held and can be reported on by the person holding the attitude.
- Fact
- Objective information about the world.
- False memories
- Memory for an event that never actually occurred, implanted by experimental manipulation or other means.
- Falsify
- In science, the ability of a claim to be tested and—possibly—refuted; a defining feature of science.
- Fight or flight response
- The physiological response that occurs in response to a perceived threat, preparing the body for actions needed to deal with the threat.
- Flashbulb memory
- Vivid personal memories of receiving the news of some momentous (and usually emotional) event.
- Flavor
- The combination of smell and taste.
- Foils
- Any member of a lineup (whether live or photograph) other than the suspect.
- Formal operations stage
- Piagetian stage starting at age 12 years and continuing for the rest of life, in which adolescents may gain the reasoning powers of educated adults.
- Framing
- The bias to be systematically affected by the way in which information is presented, while holding the objective information constant.
- 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
- A measure of changes in the oxygenation of blood flow as areas in the brain become active.
- 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.
- Functional neuroanatomy
- Classifying how regions within the nervous system relate to psychology and behavior.
- G
- Short for “general factor” and is often used to be synonymous with intelligence itself.
- 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.
- Gustation
- Ability to process gustatory stimuli. Also called taste.
- Habituation
- Occurs when the response to a stimulus decreases with exposure.
- 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
- Hormones
- Chemicals released by cells in the brain or body that affect cells in other parts of the brain or body.
- Hot cognition
- The mental processes that are influenced by desires and feelings.
- Hypothalamic-pituitary-adrenal (HPA) axis
- A system that involves the hypothalamus (within the brain), the pituitary gland (within the brain), and the adrenal glands (at the top of the kidneys). This system helps maintain homeostasis (keeping the body’s systems within normal ranges) by regulating digestion, immune function, mood, temperature, and energy use. Through this, the HPA regulates the body’s response to stress and injury.
- Hypothesis
- A tentative explanation that is subject to testing.
- Impact bias
- A bias in affective forecasting in which one overestimates the strength or intensity of emotion one will experience after some event.
- 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 attitude
- An attitude that a person cannot verbally or overtly state.
- Implicit learning
- Occurs when we acquire information without intent that we cannot easily express.
- Implicit measures of attitudes
- Measures of attitudes in which researchers infer the participant’s attitude rather than having the participant explicitly report it.
- Implicit memory
- A type of long-term memory that does not require conscious thought to encode. It's the type of memory one makes without intent.
- Inattentional blindness
- The failure to notice a fully visible object when attention is devoted to something else.
- Inattentional blindness
- The failure to notice a fully visible, but unexpected, object or event when attention is devoted to something else.
- Inattentional deafness
- The auditory analog of inattentional blindness. People fail to notice an unexpected sound or voice when attention is devoted to other aspects of a scene.
- Incidental learning
- Any type of learning that happens without the intention to learn.
- 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).
- Information processing theories
- Theories that focus on describing the cognitive processes that underlie thinking at any one age and cognitive growth over time.
- Ingroup
- A social group to which an individual identifies or belongs.
- Ingroup
- Group to which a person belongs.
- Intelligence
- An individual’s cognitive capability. This includes the ability to acquire, process, recall and apply information.
- Intentional learning
- Any type of learning that happens when motivated by intention.
- Interference
- Other memories get in the way of retrieving a desired memory
- 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)
- Lesions
- Damage or tissue abnormality due, for example, to an injury, surgery, or a vascular problem.
- Levels of analysis
- In science, there are complementary understandings and explanations of phenomena.
- Lexicon
- Words and expressions.
- 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.
- Linguistic intergroup bias
- A tendency for people to characterize positive things about their ingroup using more abstract expressions, but negative things about their outgroups using more abstract expressions.
- Mechanoreceptors
- Mechanical sensory receptors in the skin that response to tactile stimulation.
- Medial prefrontal cortex
- An area of the brain located in the middle of the frontal lobes (at the front of the head), active when people mentalize about the self and others.
- Medial temporal lobes
- Inner region of the temporal lobes that includes the hippocampus.
- Memory traces
- A term indicating the change in the nervous system representing an event.
- Mentalizing
- The act of representing the mental states of oneself and others. Mentalizing allows humans to interpret the intentions, beliefs, and emotional states of others.
- Metabolism
- Breakdown of substances.
- Metacognition
- Describes the knowledge and skills people have in monitoring and controlling their own learning and memory.
- 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.
- 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.
- Mood-congruent memory
- The tendency to be better able to recall memories that have a mood similar to our current mood.
- 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.
- 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.
- Nature
- The genes that children bring with them to life and that influence all aspects of their development.
- Need for closure
- The desire to come to a decision that will resolve ambiguity and conclude an issue.
- Nervous System
- The body’s network for electrochemical communication. This system includes all the nerves cells in the body.
- Neuroendocrinology
- The study of how the brain and hormones act in concert to coordinate the physiology of the body.
- Neurons
- Individual brain cells
- Neurotransmitter
- A chemical substance produced by a neuron that is used for communication between neurons.
- Neurotransmitters
- Chemical substance released by the presynaptic terminal button that acts on the postsynaptic cell.
- Nociception
- Our ability to sense pain.
- Nonassociative learning
- Occurs when a single repeated exposure leads to a change in behavior.
- 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.
- 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.
- Numerical magnitudes
- The sizes of numbers.
- Nurture
- The environments, starting with the womb, that influence all aspects of children’s development.
- Object permanence task
- The Piagetian task in which infants below about 9 months of age fail to search for an object that is removed from their sight and, if not allowed to search immediately for the object, act as if they do not know that it continues to exist.
- Objective
- Being free of personal bias.
- 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.
- Operant conditioning
- Describes stimulus-response associative learning.
- 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.
- Outgroup
- Group to which a person does not belong.
- Outgroup
- A social group to which an individual does not identify or belong.
- Overconfident
- The bias to have greater confidence in your judgment than is warranted based on a rational assessment.
- Parietal Lobe
- The part of the cerebrum between the frontal and occipital lobes; involved in bodily sensations, visual attention, and integrating the senses.
- Perception
- The psychological process of interpreting sensory information.
- Perceptual learning
- Occurs when aspects of our perception changes as a function of experience.
- Peripheral Nervous System
- All of the nerve cells that connect the central nervous system to all the other parts of the body.
- Phantom limb
- The perception that a missing limb still exists.
- Phantom limb pain
- Pain in a limb that no longer exists.
- Pharmacokinetics
- The action of a drug through the body, including absorption, distribution, metabolism, and excretion.
- Phonemic awareness
- Awareness of the component sounds within words.
- Photo spreads
- A selection of normally small photographs of faces given to a witness for the purpose of identifying a perpetrator.
- Piaget’s theory
- Theory that development occurs through a sequence of discontinuous stages: the sensorimotor, preoperational, concrete operational, and formal operational stages.
- Pinna
- Outermost portion of the ear.
- Planning fallacy
- A cognitive bias in which one underestimates how long it will take to complete a task.
- Polypharmacy
- The use of many medications.
- Population
- In research, all the people belonging to a particular group (e.g., the population of left handed people).
- 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.
- Preoperational reasoning stage
- Period within Piagetian theory from age 2 to 7 years, in which children can represent objects through drawing and language but cannot solve logical reasoning problems, such as the conservation problems.
- 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
- A stimulus presented to a person reminds him or her about other ideas associated with the stimulus.
- 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.
- 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).
- Psychoactive drugs
- A drug that changes mood or the way someone feels.
- Psychotropic drug
- A drug that changes mood or emotion, usually used when talking about drugs prescribed for various mental conditions (depression, anxiety, schizophrenia, etc.).
- Qualitative changes
- Large, fundamental change, as when a caterpillar changes into a butterfly; stage theories such as Piaget’s posit that each stage reflects qualitative change relative to previous stages.
- Quantitative changes
- Gradual, incremental change, as in the growth of a pine tree’s girth.
- Recoding
- The ubiquitous process during learning of taking information in one form and converting it to another form, usually one more easily remembered.
- 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.
- Retina
- Cell layer in the back of the eye containing photoreceptors.
- Retrieval
- The process of accessing stored information.
- Retrieval
- Process by which information is accessed from memory and utilized.
- Retroactive interference
- The phenomenon whereby events that occur after some particular event of interest will usually cause forgetting of the original event.
- Retrograde amnesia
- Inability to retrieve memories for facts and events acquired before the onset of amnesia.
- Rods
- Photoreceptors of the retina sensitive to low levels of light. Located around the fovea.
- Sample
- In research, a number of people selected from a population to serve as an example of that population.
- Sapir-Whorf hypothesis
- The hypothesis that the language that people use determines their thoughts.
- Schema
- A mental model or representation that organizes the important information about a thing, person, or event (also known as a script).
- Schema (plural: schemata)
- A memory template, created through repeated exposure to a particular class of objects or events.
- Scientific theory
- An explanation for observed phenomena that is empirically well-supported, consistent, and fruitful (predictive).
- Selective attention
- The ability to select certain stimuli in the environment to process, while ignoring distracting information.
- Selective listening
- A method for studying selective attention in which people focus attention on one auditory stream of information while deliberately ignoring other auditory information.
- Semantic memory
- The more or less permanent store of knowledge that people have.
- Sensation
- The physical processing of environmental stimuli by the sense organs.
- Sensitization
- Occurs when the response to a stimulus increases with exposure
- Sensorimotor stage
- Period within Piagetian theory from birth to age 2 years, during which children come to represent the enduring reality of objects.
- Sensory adaptation
- Decrease in sensitivity of a receptor to a stimulus after constant stimulation.
- 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.
- Signal detection
- Method for studying the ability to correctly identify sensory stimuli.
- Simulation
- Imaginary or real imitation of other people’s behavior or feelings.
- Situation model
- A mental representation of an event, object, or situation constructed at the time of comprehending a linguistic description.
- The hypothesis that the human brain has evolved, so that humans can maintain larger ingroups.
- The act of mentally classifying someone into a social group (e.g., as female, elderly, a librarian).
- The study of how people think about the social world.
- Networks of social relationships among individuals through which information can travel.
- A subjective feeling of psychological or physical comfort provided by family, friends, and others.
- Sociocultural theories
- Theory founded in large part by Lev Vygotsky that emphasizes how other people and the attitudes, values, and beliefs of the surrounding culture influence children’s development.
- 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.
- Split-brain Patient
- A patient who has had most or all of his or her corpus callosum severed.
- 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 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
- Our general beliefs about the traits or behaviors shared by group of people.
- Stereotypes
- The beliefs or attributes we associate with a specific social group. Stereotyping refers to the act of assuming that because someone is a member of a particular group, he or she possesses the group’s attributes. For example, stereotyping occurs when we assume someone is unemotional just because he is man, or particularly athletic just because she is African American.
- Storage
- The stage in the learning/memory process that bridges encoding and retrieval; the persistence of memory over time.
- Stress
- A threat or challenge to our well-being. Stress can have both a psychological component, which consists of our subjective thoughts and feelings about being threatened or challenged, as well as a physiological component, which consists of our body’s response to the threat or challenge (see “fight or flight response”).
- Subliminal perception
- The ability to process information for meaning when the individual is not consciously aware of that information.
- 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.
- Superior temporal sulcus
- The sulcus (a fissure in the surface of the brain) that separates the superior temporal gyrus from the middle temporal gyrus. Located in the temporal lobes (parallel to the ears), it is involved in perception of biological motion or the movement of animate objects.
- Sympathetic nervous system
- A branch of the autonomic nervous system that controls many of the body’s internal organs. Activity of the SNS generally mobilizes the body’s fight or flight response.
- Synapse
- The tiny space separating neurons.
- 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.
- Syntax
- Rules by which words are strung together to form sentences.
- 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.
- Tastants
- Chemicals transduced by taste receptor cells.
- 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 parietal junction
- The area where the temporal lobes (parallel to the ears) and parieta lobes (at the top of the head toward the back) meet. This area is important in mentalizing and distinguishing between the self and others.
- 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.
- Temporally graded retrograde amnesia
- Inability to retrieve memories from just prior to the onset of amnesia with intact memory for more remote events.
- Top-down processing
- Experience influencing the perception of stimuli.
- Transduction
- The conversion of one form of energy into another.
- Transfer-appropriate processing
- A principle that states that memory performance is superior when a test taps the same cognitive processes as the original encoding activity.
- 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 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.
- Value
- Belief about the way things should be.
- Ventral pathway
- Pathway of visual processing. The “what” pathway.
- Vestibular system
- Parts of the inner ear involved in balance.
- Weber’s law
- States that just noticeable difference is proportional to the magnitude of the initial stimulus.
- Working memory
- The form of memory we use to hold onto information temporarily, usually for the purposes of manipulation.