N
Naikan therapy
n. Naikan therapy is an intensive, systematic form of self-reflection (Naikan literally means “in...
naïve psychology
n. 1. The common beliefs of persons in any culture about the workings of the mind and their inter...
naïve realism
n. The belief that perception of an object is direct knowledge of the nature of the object itself...
naïve scientist metaphor
n. The portrayal of the workings of the mind as like those of a naive scientist trying to underst...
naloxone
n. A short-lived opiate antagonist often used to treat opiate overdoses. It binds to opiate recep...
naltrexone
n. A long-lived opiate antagonist that binds to opiate receptors without having sedative or depre...
narcissism
n. 1. In common usage, excessive positive self-evaluation and lack of consideration for others. 2...
narcissistic injury
n. Any injury to one's sense of self-worth or sense of entitlement but particularly important in ...
narcissistic libido
n. Sexual desire directed toward one's self which decreases in direct proportion to libido invest...
narcissistic personality disorder
n. An enduring pattern of personal adjustment characterized by grandiosity, need for attention an...
narcolepsy
n. A disorder characterized by repeatedly falling into deep, refreshing sleep during waking hours...
narcosis
n. Drug-induced sleep.
narcotic analgesic
n. Any sleep inducing drug that is used as a painkiller such as morphine. These include buprenorp...
national character
n. The modal personality type within a culture that most persons in that culture share to some de...
national stereotype
n. A perception of the average or modal personality traits of individuals in a particular nation ...
nativism
n. The point of view that the capacity to perceive time and space, intellectual abilities, charac...
natural category
n. Any category that occurs in natural language or folk usage, as opposed to ad hoc categories or...
naturalistic fallacy
n. The supposition that what occurs in nature or is historically true is morally right. Thus sinc...
naturalistic observation
n. A research methodology that collects descriptive data via observations of target phenomena occ...
natural killer cell
n. A kind of lymphocyte with many receptor varieties which reacts quickly to infection before the...
natural language
n. Any language that has evolved through common usage in a human society and has native speakers,...
natural selection
n. The process whereby some individuals of a species survive and procreate whereas others do not ...
nature-nurture
n. The controversy over the relative contributions of heredity and experience to the makeup of th...
near-death experience
n. (NDE) The thoughts, feelings, memories, and perceptions of persons during a short period in wh...
near-sightedness
n. Difficulty in clearly perceiving distant objects due to elongation of the eyeball which result...
Necker cube
n. A line drawing of a transparent cube in which all lines and vertices are apparent which is amb...
necromania
n. A preoccupation with dead bodies which causes distress to the individual or interferes with so...
necrophilia
n. Recurrent sexual arousal by fantasies of, desire for, or actual sexual interaction with dead b...
need
n. 1. Anything necessary for the survival of an organism. 2. The desire for anything necessary fo...
need-drive-incentive model
n. A theory of motivation that asserts that deprivation of physical necessities (need) produces m...
need for achievement
n. An inferred drive to accomplish difficult tasks at a high standard of competence and overcomin...
need for affiliation
n. The desire to interact with and form attachments with others; to be part of a group and to be ...
need for closure
n. The need for closure is the desire for immediate and definite knowledge and the aversion towar...
need for cognition
n. Contemporary conceptions define the need for cognition as the general tendency to engage in an...
need for distinctiveness
n. The desire to be seen as different from others, usually in a positive way
need for evaluation
n. A propensity to engage in evaluative cognitions, which differs from the need to think about th...
need for structure
n. The desire to have predictable experience or to impose order on oneself or some aspects of the...
need hierarchy
n. The relative importance of things or states to the survival or well-being of an organism at a ...
need-hierarchy theory
n. 1. Any theory which supposes that the behavior of humans or other organisms is well explained ...
need-press
n. Motivational states that result from environmental circumstances as a bus moving rapidly towar...
need to belong
n. The desire to be socially included, accepted, and approved by others.
negative afterimage
n. The visual form which remains after a visual stimulus has been removed which has reversed patt...
negative feedback
n. 1. Reactions to an action or a communication which express negative evaluation of the action o...
negative priming
n. The interference by one stimulus in the perception of an ensuing stimulus. Thus showing a blan...
negative reference group
n. Any group of people with which an individual does not wish to be associated.
negative reinforcement
n. The reinforcement of a behavior by the removal or prevention of an aversive stimulus. Thus a d...
negative symptoms of schizophrenia
n. Symptoms that are a reduction in the functioning of a typical healthy person. Note that negati...
negative transfer
n. The interference in learning appropriate responses created by previous learning of different r...
negativity bias
n. The tendency for people to weigh negative information more heavily than positive information i...
nemawashi
n. The broad-based consensus-building procedure that occurs within the Japanese ringi system of d...
neobehaviorism
n. 1. Any form of behaviorism that differs from that of J. B. Watson. 2. A form of psychological ...
neocortex
n. Newer portion of the cortex found in the brain of mammals. It is about 2–5 mm thick and contai...
neo-Darwinism
n. Neo-Darwinism is the synthesis during the early decades of the 20th century of Darwin's origin...
neo-Freudian
adj. Of or relating to any psychological approach that has evolved from the psychoanalysis of Sig...
neologism
n. 1. A newly coined word or phrase or a new use for an old word. Thus the new word def means “go...
Neonatal Behavioral Assessment Scale
n. (NBAS) A neonatal scale of development which assesses neurological and behavioral development ...
neonatal development
n. All the progressive changes in body, mind, and behavior that occur in the first few weeks afte...
neonate
n. An infant in the first few weeks of life.
nerve
n. A bundle of nerve cells running together in a branching path outside the central nervous syste...
nerve cell
n. An individual unit in the nervous system defined by a cell wall and consisting of a cell body,...
nerve deafness
n. An inability to hear due to malfunction of the inner ear or the auditory nerve. By far the mos...
nerve ending
n. The terminus of an axon that does not synapse with another neuron, including basket endings, f...
nerve fiber
n. The axon of a neuron; the elongated portion of the neuron that carries electrical impulses for...
nerve growth factor
n. (NGF) A hormone produced in smooth muscle cells that stimulates growth and development in spin...
nerve impulse
n. A wave of electrical depolarization which travels along the cell wall of a neuron or chain of ...
nerve pathway
n. 1. A route through the nervous system of a neural impulse. 2. A chain of neuronal connections ...
nervous breakdown
n. A folk term for any mental illness that causes significant interference in daily living.
nervous system
n. The complex organization of neurons in the body that enables the senses, exercises control ove...
network model
n. Any theory of psychological functioning which includes nodes connected to one or more other no...
neuralgia
n. Pain along the course of a nerve or nerve tract caused by damage to or malfunction of the nerv...
neural imaging
n. The process of creating pictures of nerves and their functioning such as functional magnetic r...
neural mechanisms of learning
n. An interdisciplinary area of study seeking to identify the chemical and neural processes in al...
neural network
n. 1. Any set of interconnected neurons in the central nervous system. 2. In cognitive science, a...
neural network models
n. In cognitive science, a hypothesized organization of the mind in which there are semantic node...
neurasthenia
n. An archaic term for a mental condition in which the individual feels fatigued and weak, suffer...
neurilemma
n. Chains of Schwann cells making up the external myelin sheath of neurons in the peripheral nerv...
neuroanatomy
n. The study of the structure and function of the nervous system and all its constituent parts.
neurobiology
n. The study of the development, structure, function, biochemistry, and physiology of the nervous...
neurochemistry
n. The study of the atomic, ionic, and molecular processes involved in the nervous system and the...
neurocognition
n. The study of the relationships between neural processes and thought processes.
neuroendocrine
adj. Of or relating to the processes of interaction between the central nervous system and the en...
neuroendocrine system
n. Includes the hypothalamus, pituitary gland, and all endocrine glands, including the adrenal gl...
neuroendocrinology
n. A scientific discipline which investigates the interaction of the central nervous system (CNS)...
neuroglia
n. Any tissue made up of glial cells, which are nonneural cells within the nervous system which p...
neurohypophysis
n. Another name for the pituitary gland.
neuroimaging technique
n. Any process of creating pictures of nerves and their functioning such as functional magnetic r...
neuroleptic
adj. Of or relating to an ability to alter the functioning of the nervous system and most often a...
neurolinguistic programming
n. (NLP) A program of psychotherapy and personal growth which attempts to reprogram the mind in m...
neurolinguistics
n. The study of the interaction between brain function and linguistic behavior, which often focus...
neuromodulation
n. The process of regulating synaptic transmission of electrical impulses by means of modifying t...
neuromuscular disorder
n. Any of several disorders in which muscle coordination is adversely affected by trauma or disea...
neuron
n. An individual unit in the nervous system defined by a cell wall and consisting of a cell body,...
neuron receptor site
n. A point on the surface of a dendrite that has an electrochemical configuration which will caus...
neuropathic
adj. Of or relating to disease or dysfunction of the nervous system.
neuropathy
n. Disease or disorder of the nervous system.
neuropeptide
n. A short chain of amino acids produced in the nervous system and functioning as either a hormon...
neurophysiology
n. The study of the structure and function of nerve cells, nerves, and nervous systems.
neuropsychological assessment
n. Cognitive evaluation approached from a clinical neuropsychology perspective. It includes the a...
neuropsychology
n. Study of the brain organization of cognition and behavior under normal and abnormal conditions...
neuroscience
n. An interdisciplinary approach to the study of the nervous system that includes anatomy, bioche...
neurosis
n. A general and somewhat archaic term for any pervasive and enduring pattern of maladjustment th...
neurotic
1. n. A person who suffers from a pervasive and enduring pattern of maladjustment that causes sig...
neuroticism
n. 1. The degree to which an individual chronically engages in dysfunctional emotional, behaviora...
neurotoxin
n. Any substance that causes temporary or permanent damage to or disrupts the function of any par...
neurotransmitter
n. Any chemical that is released from an axon terminal of one neuron which attaches to a dendriti...
Newman-Keuls test
n. A post hoc procedure in an analysis of variance in which group means are ranked and a t statis...
nicotine
n. The psychoactive chemical in tobacco, which works by mimicking acetylcholine and triggering th...
nicotinic receptor
n. The site of action of acetylcholine at the neuromuscular junction, and at preganglionic synaps...
nictitating membrane
n. A thin transparent or semitransparent membrane beneath the eyelid that can be drawn across the...
night blindness
n. An inability to see in dim light. In some cases this is an inherited condition; in other cases...
nightmare
n. A dream in which there is intense negative emotion, usually fear but sometimes anger, sadness,...
night terror
n. A disorder in which an individual experiences recurrent episodes in which he or she abruptly a...
night vision
n. Seeing in very dim light in which only the rods of the eyes are functioning as cones need a hi...
nirvana
n. In Buddhism, a state of being in which the individual is in complete contact with reality with...
nitric oxide
n. (NO) A colorless, odorless gas which easily separates into free radicals, sometimes acts as a ...
nocturnal emission
n. A sexual ejaculation that occurs during sleep, usually during dreams and during REM stage slee...
nodes of Ranvier
n. The regularly spaced gaps in the myelin sheath surrounding axon fibers in which the axon is ex...
noise, white
n. Short, random patterns of sound which have equal energy at all frequencies when averaged over ...
nominal scale
n. Nominal scales lack all three key scale properties: magnitude, equal intervals, and absolute z...
nomological network
n. A predictable pattern of interrelationships between theoretical constructs and observations wh...
nomological validity
n. A predictable pattern of interrelationships between theoretical constructs and observations wh...
nomothetic
adj. Of or relating to the formulation of general rules, as opposed to the study of individuals.
nonalcoholic Korsakoff's psychosis
n. Korsakoff's syndrome and Korsakoff's psychosis reflect a depletion of nutrients, notably a thi...
nondetermination, coefficient of
n. (k) An index of the variance between two variables not explained by their covariance. It is gi...
nondirectional test
n. A statistical test of the difference between means which does not specify which mean is expect...
nondirective therapy
n. An approach to psychotherapy developed by Carl Rogers in which it is assumed that clients have...
nondisjunction
n. In reproduction, the failure of chromosomal pairs to split into two pairs so that one of the d...
nonequivalent groups design
n. A quasi-experimental research design in which individuals are not randomly assigned to groups,...
nonessential amino acids
n. Any of a group of organic molecules containing both at least one amine (NH2) and at least one ...
nonfluent aphasia
▶ See MOTOR APHASIA
nonidentical twins
n. Two babies born of the same mother who shared their gestational period and were formed from th...
nonintermittent reinforcement schedule
n. A process of reward in which each target behavior is rewarded regardless of the timing or sequ...
nonlinear
n. Any relationship between two variables whose graphic depiction is not a straight line and whic...
nonparametric statistic
n. Any statistical test which does not make assumptions about the distribution of the population ...
nonprobability sample
n. Any sample selected by a method other than a random process.
nonreactive measure
n. Any observation of behavior of which the subject is unaware and so is uninfluenced by the proc...
non-REM sleep
n. Any portion of sleep in which rapid eye movements do not occur. Rapid eye movements are charac...
nonreversal shift
n. An experimental learning task in which subjects are first rewarded for selecting a certain typ...
nonsense syllable
n. A string of three letters in a consonantvowel-consonant pattern, such as nug, which does not f...
nontaster
n. A person who has no experience of taste when given a solution of propylthiouracil. About 25% o...
nonverbal behavior
n. All overt actions other than those of language, and especially those judged to convey informat...
nonverbal communication
n. The conveyance of information through facial expression, gestures, postures, tone of voice, an...
nonverbal hot spot
n. A term coined originally by Paul Ekman and Mark Frank to refer to any occurrence in which the ...
nonverbal intelligence
n. Any capacity to learn or perform tasks other than through words. This is usually measured as p...
nonverbal intelligence tests
n. Any measure of mental capacity which does not use words as either the question or the response...
nonverbal leakage
n. Refers to the giving away of one's mental state or intention through nonverbal behaviors, whic...
nonverbal test
n. Any measure which does not use words as a query or a response.
noradrenaline
n. A largely excitory neurotransmitter of the catecholamine family synthesized from tyrosine in t...
noradrenergic
adj. Of or relating to the release or response to noradrenaline or norepinephrine.
norepinephrine
n. A largely excitory neurotransmitter of the catecholamine family synthesized from tyrosine in t...
norm
n. 1. A generally accepted standard of behavior within a cultural or subcultural group. 2. An ave...
normal curve
n. A theoretical and continuous probability distribution that is a function of the expected value...
normal distribution
n. A class of probability distributions that are depicted graphically as a unimodal (singlepeak),...
normality
n. 1. Conforming to that which is expected of the social, age, and cultural group of which one is...
normal probability plot
n. A theoretical and continuous probability distribution that is a function of the expected value...
normative
adj. 1. Of or relating to standards or expected values as in obtaining a normative score on a tes...
normative reference group
n. Any group that is taken as a standard for self-comparison by an individual. Reference groups c...
norm group
n. A group used to establish a standard against which others are compared.
norm-referenced test
n. A standardized test that reports an individual's results in relationship to the performance of...
nose
n. The organ of olfaction containing two nostrils or nares through which air is normally inspired...
nosology
n. The systematic classification and study of diseases and disorders.
nuclear family
n. A conception of the family as limited to two parents and their offspring. This is often consid...
nuclear magnetic resonance
n. The rapid tilting and realignment of protons during exposure to high-frequency radiation in a ...
nucleic acid
n. A long chain of molecules consisting of a nitrogenous base, a sugar, and one or more phosphate...
nucleus
n. 1. A core or essential part around which other parts are gathered or grouped. 2. The ovate cen...
nucleus accumbens
n. Either of two masses of cell bodies in the basal forebrain where dopamine secreting neurons in...
nuisance variable
n. A variable of no interest to an experimenter which may influence the relationship between depe...
null hypothesis
n. The formal idea that any differences between groups in an experiment can be attributed to rand...
null hypothesis significance testing
n. Comparison of a test statistic to a preselected criterion value of the statistic to determine ...
number-completion test
n. A measure of intellectual ability in which a subject is given a sequence of numbers and requir...
nurturance
n. 1. The provision of the physical and emotional factors required by a living thing for its well...
nurture
n. The total of all environmental factors including physical care, emotional attachments, and upb...
nyctalopia
n. An inability to see in dim light. In some cases this is an inherited condition; in other cases...
nymphomania
n. A state of excessive and uncontrollable craving and seeking of sexual stimulation and gratific...
nymphomaniac
n. A woman who suffers from insatiable craving and seeking of sexual stimulation and gratificatio...
nystagmus
n. Rapid, involuntary, and rhythmic movement of the eyeballs. This may be caused by intoxication ...