M

n. An illusion that appears when the edges of a light gray and a dark gray patch are placed toget...

n. A character trait or social strategy of manipulativeness in which the person regards others im...

n. The prominent exhibition of the male sex role including being a provider, as well as being une...

n. Enlargement of the head, usually due to a congenital defect that increases growth of tissues t...

n. A fatal disease of the central nervous system in cows caused by defective proteins called prio...

n. A process of familiarizing an animal in operant conditioning experiments with a machine called...

n. "The Magical Number Seven" is the title of the cognitive psychologist George A. Miller's influ...

n. The belief that one's thoughts can influence the world and others around oneself. This is usua...

n. (MRI) Use of a medical device for creating three-dimensional images of the body by measuring t...

n. A psychophysical method for measuring the perceived intensity of a stimulus in which a subject...

n. In an analysis of variance, the effect of an independent variable on a dependent variable acro...

n. The practice of placing students who are markedly above or below average in academic performan...

n. The repeating of information such as a telephone number over and over again in an attempt to r...

n. In operant conditioning, the frequency and conditions in which an established response is rein...

n. A period of 6 or more months in which a person feels depressed, low in energy, worthless, and ...

n. A disorder characterized by two or more episodes of depressive episodes which are periods betw...

n. A chronic brain disorder characterized by uncontrolled electrical activity in the brain which ...

n. An archaic name for antipsychotic medications which emphasized the difference between them and...

adj. Interfering with optimal biological, economic, emotional, intellectual, occupational, or soc...

n. The state of coping less than optimally in biological, economic, emotional, intellectual, occu...

n. A mental disorder characterized by sleep disturbances, crying without apparent cause, diarrhea...

n. The persistent or recurrent inability to maintain an adequate penile erection for the completi...

n. A disorder characterized by persistent or recurrent absence of or delay in orgasm after sexual...

n. Intentionally pretending to have an illness or disability or exaggerating psychological or phy...

n. One of the three ossicles of the auditory system. Because of the shape, it is also known as th...

n. The glands in mammalian females that secrete milk. Also called breasts or teats.

n. Either of two bumps on the bottom of the brain at the end of the fornix resembling breasts whi...

► See MULTIVARIATE ANALYSIS OF COVARIANCE

n. 1. Any symmetrical geometric figure usually including a circle or square. 2. In Jungian psycho...

n. 1. A mental state characterized by abnormally high energy, low need for sleep, excessive uncoo...

n. A mental state characterized by abnormally high energy, low need for sleep, excessive uncoordi...

n. A disorder characterized by abnormally high energy, low need for sleep, excessive uncoordinate...

n. An enduring pattern of psychological functioning and behavior characterized by the alternation...

n. A period in which a person has abnormally high energy, low need for sleep, excessive uncoordin...

n. Overt arousal and visible acting out of internal feelings of stress.

n. A self-report inventory of overt or conscious symptoms of anxiety. Also called the Taylor Mani...

n. A statistical measure test of the likelihood that two samples of ordinal or ranked data are dr...

► See MULTIVARIATE ANALYSIS OF VARIANCE

n. A family of antidepressant drugs that operate by inhibiting the action of monoamine oxidase (M...

n. Any identifiable group of people who have not been assimilated into the mainstream of a cultur...

n. Originally coined by sociologists, the term marginalization is used in acculturation psycholog...

n. The plant species Cannabis sativa, whose leaves and flowers contain intoxicating can- nabinoid...

n. Any form of therapy in which married couples engage which is usually focused on improving comm...

n. The systematic and objective study of marketing mix variables (e.g., price, promotion, product...

n. The characteristics associated with a men in general which in cross-cultural studies include b...

n. Any scale which attempts to measure gender roles. 1. The fifth scale on the Minnesota Multipha...

n. Masking is an impairment of a person's awareness of a target (e.g., a letter or word) caused b...

n. 1. The characteristic of being sexually aroused by stimulation most people would consider pain...

n. In memory research, a summary term for attempting to memorize any material all at one time, as...

n. A rapid outbreak of emotional outbursts, suggestibility, and/or conversion symptoms in a crowd...

n. 1. Manipulation of one's genitals for sexual pleasure. This is the most common form of sexual ...

n. The Miller Analogies Test is a measure of intellectual ability which uses a graded series of i...

n. A research procedure in which two or more groups are selected on the basis of being the same o...

n. A research procedure in which pairs of subjects are selected on the basis of being the same on...

n. An instrument designed to measure a cognitive dimension of reflection versus impulsivity in wh...

n. The idea that individuals are attracted to or join with persons of similar levels of physical ...

n. In operant conditioning, the idea that responses among several alternatives will be distribute...

n. A family of experimental tasks in which a subject is required to select a test stimulus which ...

n. Attracting someone who is already in a romantic relationship with someone else.

n. Materialism has been defined in a variety of ways. However, such definitions all tend to descr...

n. Inadequate nurturing during infancy by the mother or other attachment figure which leads to di...

n. A square matrix whose margins are identical lists of variables which presents the correlations...

n. Fulfillment of the inherent or natural processes of growth and development in any living thing.

n. In statistics, any procedure for predicting the value of one or more variables which is closes...

n. The tendency of the human listener to combine visual and auditory information in understanding...

n. In statistics, a form of chi-square test for dichotomous variables which tests whether the two...

n. Any one of several measures of central tendency, the most common of which is the arithmetic me...

n. The sum of a set of a finite set of numbers divided by how many numbers there are in the set.

n. The arithmetic mean of the differences between a set of observations and their arithmetic mean...

n. An average calculated by taking the reciprocal of the arithmetic mean of the reciprocals of a ...

n. (MLU) In linguistics, the arithmetic mean of the number of words in the average sentence or qu...

n. The arithmetic mean of a set of observations drawn from a population of possible observations.

n. 1. An approach to solving a problem that examines the difference between the present state and...

n. The arithmetic mean of the squares of any set of numbers.

n. The process of assigning numbers to represent dimensions or aspects of perceived reality accor...

n. A numerical index of the middle of a set of numbers around a central point such as mean, media...

n. (MFB) Either of a pair of nerve tracts which constitute the most important pleasure centers in...

n. Either of a pair of bumps on the side of the thalamus which relay auditory information from th...

n. The median is a measure of central tendency that is located at the center of a distribution of...

n. In statistics, a test of the likelihood that samples with two medians are drawn from the same ...

n. A mediating variable explains how or why two variables are related by specifying that the medi...

n. The general approach to disease of Western medicine and science, which is the assumption that ...

n. 1. Any process of training the mind through focusing on the senses, an object, or an internal ...

n. 1. The central region of any organ. 2. The medulla oblongata.

n. The bottom of the hindbrain at the top of the spinal cord between the pons and the cerebellum ...

n. An extreme form of grandiosity and self- centeredness in which all things are believed subserv...

n. An ovate sense receptor concentrated in the skin of the genitals, fingertips, lips, nipples, p...

n. An archaic term for a depressed mood or a depressive disorder.

n. A hormone produced when the pineal gland breaks down serotonin during the night which is invol...

n. A layer of usually fibrous boundary tissue that encloses cells, lines organs, or otherwise cre...

n. Any difference in electric charge between the inside and outside of a cell or other membrane. ...

n. 1. Any relatively lasting storage of information in the brain, which is currently hypothesized...

n. A hypothesized form into which sensory and other information is transformed for storage.

n. The process which underlies the ability to recall and verbalize information.

n. An archaic experimental device used in memory experiments which consisted of a rotating cylind...

n. A hypothesized very-short-term memory for sound which allows storage of auditory information l...

n. The capacity to recall specific events.

n. Aspects of memory that can be recalled at will from both episodic and semantic memory, as oppo...

n. Recollections of events that have not actually occurred. In the retrieval of information and r...

n. Biographical memories of important events that seem unusually clear and detailed, such as the ...

n. A hypothesized very-short-term memory store for visual information which allows the integratio...

n. The storage and use of information which is not easily recollected and stated such as how to r...

n. A hypothesized information store in the brain which lasts indefinitely and has no limit on its...

n. 1. The capacity to indicate accurately whether or not a particular item was included in a prev...

n. A form of recollection in which some parts of the information recalled are accurate and some p...

n. The storage of general information not tied to specific events such as how many stars are in t...

n. A hypothesized information storage system of a limited capacity which allows material to be us...

n. The length of a list of items an individual can recall without error immediately after present...

n. A hypothetical physiological change in the brain that is the physical process of storing infor...

n. A hypothesized information storage system containing the information necessary for working on ...

adj. Of or relating to the theories of Gregor Mendel, who first noticed that traits are inherited...

n. The three membrane layers which cover the brain and spinal column consisting of a fibrous oute...

n. The cessation of a woman's fertility including a drastic lowering of estrogen production in th...

n. The monthly cycle of a woman's sexual fertility and infertility in which an ovum is readied fo...

n. Latin for guilty mind or criminal intent, which is an element of some criminal statutes in som...

n. The reproductive cycle of female anthropoid primates, including humans. Levels of hormones fro...

n. The monthly cycle of a woman,s sexual fertility and infertility in which an ovum is readied fo...

► See AGE, MENTAL

n. The state of lacking normal levels of intellectual capacity. Also called mental retardation or...

n. A recognizable pattern of personal distress, abnormal emotional reactions and behavior, cognit...

n. A recognizable pattern of personal distress, abnormal emotional reactions and behavior, cognit...

n. 1. The process of creating internal experiences of sensory and particularly of visual percepti...

n. Any of an irregularly published series of 12 books containing reviews of most published psycho...

n. The theoretical mental structure corresponding to information processing models of perception,...

n. The state of lacking normal levels of intellectual capacity. There are several levels, usually...

n. A range of intellectual deficiency usually defined by having an IQ in the range from 52 to 69....

n. A range of intellectual deficiency usually defined by having an IQ estimated to be in the rang...

n. A range of intellectual deficiency usually defined by the IQ range 19 and below. Persons with ...

n. A range of intellectual deficiency usually defined by the IQ range 20-35. Persons with this le...

n. An experimental task in which subjects are asked to make judgments about visual images which r...

n. The temporary activation of a particular mental network in preparation for coping with a parti...

n. The experiential and functional status of the mind at any given moment.

n. A comprehensive mental examination intended to include a global assessment of a subject's pers...

n. The act or process of increasing the level of activity in the mind or the brain, usually throu...

n. The observation that familiar things tend to be liked better than unfamiliar things whether or...

n. The midbrain, an inch-long region of the brain between the spinal cord and hindbrain on one en...

n. A system of dopaminergic neurons with cell bodies in the tegmentum of the midbrain and axon te...

n. (mRNA) A short-lived form of ribonucleic acid that is formed as a mirror image of a strand of ...

n. Any statistical procedure in which the effect sizes of numerous studies are combined into a di...

n. Awareness of or knowledge about one's own thought processes and knowledge which allows conscio...

n. A form of backward masking in which a target stimulus, usually a dot, is presented briefly and...

n. Awareness or knowledge about one's own memory or knowing one knows. Thus one can answer a ques...

n. A form of speech in which a word or phrase is applied to another word or idea that it does not...

n. 1. The branch of philosophy concerned with first principles or ultimate meaning. 2. Any system...

n. The study of the basic principles and approaches of psychology.

n. A synthetic addicting drug of the opiate family which is relatively long-acting and often used...

n. The most potent drug in the amphetamine family, which acts as a strong central nervous system ...

n. A memory technique in which items to be remembered are associated with particular places or pa...

n. An approach to psychology which concedes that the mind exists and that mental events are usefu...

n. A process of investigation guided by the basic principles of skepticism and open-mindedness in...

n. Methylphenidate hydrochloride is a central nervous system stimulant which works by stimulating...

n. An extremely brief facial expression of emotion, often appearing for only a fraction of a seco...

n. A very brief period of sleep in a person who appears to be awake, usually lasting from 1 to ab...

n. Brain area situated between the diencepha- lons (rostrally) and the pons (caudally). In the hu...

n. The portion of the auditory system from the eardrum to the oval window at the start of the coc...

n. Stanley Milgram's experiments on obedience to authority, conducted from 1960 to 1963 at Yale U...

n. An applied area of psychology that studies leadership, assignment, evaluation, selection, trai...

n. (MAT) This is a measure of intellectual ability which uses a graded series of items of increas...

n. (MCMI III) A widely used self-report measure of psychopathology originally based on the theori...

n. 1. A general term for mental, as opposed to physical, processes and contents. 2. Consciousness...

n. A concept extensively debated by the rationalist philosophers of the 17th century which became...

► See MINDFULNESS/MINDLESSNESS

n. Mindfulness is an active state of mind characterized by novel distinction drawing. It is the p...

n. The lowest level of air pressure change necessary for a person to hear sound at a particular t...

n. Inferred minor damage to the brain which does not appear on physical measures of the brain suc...

n. (MMPI) The most widely used self-report measure of personality and psychopathology in the worl...

n. A mood disorder lasting more than 2 weeks characterized by fewer symptoms and less impairment ...

n. A generalized seizure disorder which does not involve the motor cortex whose apparent symptoms...

n. A subgroup within any social group which is identified as being different from the group as a ...

n. The idea that bilingual minority group members behave according to the stereotypes the majorit...

n. A form of social influence in which a minority consistently rejects a majority norm and persua...

n. Any of several types of drugs which have the effect of lowering anxiety level such as the benz...

n. A test of motor skills in which a person is asked to trace a shape such as a star or square wh...

n. Writing in a way so that the letters and words are reversed as they would be seen in a mirror....

n. The misinformation effect is a memory error in which memory for an event is influenced by expo...

n. The process of cell division in which a cell splits into two identical daughter cells with the...

adj. Of or relating to memory or a technique to aid memory as in a mnemonic device.

n. This is simply a strategy for enhancing memory. There are many different types of mnemonic dev...

n. The hypothesized physical change in the brain which corresponds to memory. Also called an engram.

n. 1. A channel of sensory perception such as vision or hearing. 2. A therapeutic process, techni...

n. Any effect on perception or memory in which the sensory channel used to present the informatio...

n. The mode is a measure of central tendency that is the most frequently occurring score in a dis...

n. 1. A technique used in several therapies in which the client changes through observing the the...

n. The term model minority refers to minority groups whose members are widely perceived to have b...

n. A level of intellectual deficiency usually defined by having an IQ estimated to be in the rang...

n. In statistics, a variable in a multiple regression that does not correlate with the dependent ...

n. In logic, the idea that if the first part of a conditional statement is true, then the second ...

n. In logic, the idea that if the second part of a conditional statement is false, then the first...

adj. 1. Of or relating to one ear only. 2. Of or relating to sound that is recorded on a single t...

n. An archaic name for a congenital condition characterized by mild to severe mental retardation,...

n. In philosophy, a point of view in which reality consists of only a single substance. In ideali...

n. Any chemical compound that contains only one amine group, which is a nitrogen atom bonded to t...

n. (MAO) A hormone present in the mitochondrial membranes of almost all human tissues which metab...

n. Any of several drugs used as antidepressants whose mechanism of action is to inhibit monoamine...

n. A form of color blindness in which the retina contains only one type of cone and the person is...

n. A form of color blindness in which the retina contains only one kind of cone and so the person...

adj. Of or relating to a single eye, as in monocular vision, which lacks some of the depth and di...

n. Any of several stimulus characteristics which are used to make inferences about distance and d...

n. 1. A reproductive relationship in which a male and a female mate exclusively with one another....

adj. Changing in only one direction as a variable that only increases or only decreases but does ...

adj. Of or relating to a single fertilized embryo, as in monozygotic twins, who are genetically i...

n. Two genetically identical children born when an embryo divides into halves which separate and ...

n. In statistics, any technique which generates sequences of random numbers which are used as dat...

n. An approach to early childhood and elementary education which assumes the child has an active ...

n. 1. An affective state that persists from several minutes to several weeks which directs and co...

n. The degree to which a thought, action, or other occurrence fits in with a mood, especially in ...

n. A memory which fits well with the mood of the person having the memory.

n. An episodic memory which is recalled only when a person is in the same mood as when the origin...

n. Any disorder whose chief characteristic is a prolonged emotional state which is independent of...

n. Drug which reduces the mania or hypomania in bipolar disorders and the sadness in both bipolar...

n. The characteristic of being affected by mood, as in mood-dependent memories or behavior

n. The apparent difference in the size of the moon when it is near the horizon as opposed to when...

n. The process by which humans develop a code of values and ethical principles that guide decisio...

n. A situation which appears to force an individual to choose between two or more strongly held b...

n. A code or system of right conduct against which real behaviors are judged.

n. A duty arising out of beliefs of right and wrong, which vary considerably from culture to cult...

n. In Piagetian theory, the second stage of moral development, characteristic of children from ab...

n. The idea that we should interpret animal behavior as a function of the lowest possible level o...

n. A Japanese approach to psychotherapy which focuses on mindfulness and moving from a focus on c...

n. An archaic term for a mildly retarded person.

n. A reflex present in newborn infants in which, when startled, they open arms and legs wide and ...

n. The smallest part of a word that carries meaning or performs a grammatical function is a morph...

n. The primary drug in opium, which is a very powerful painkiller and sedative as well as being h...

n. Morphology is a component of the grammar of a language by which morphemes are combined to crea...

n. Mortality salience is a psychological state in which individuals consciously think about their...

n. A congenital condition characterized by mild to severe mental retardation, pleasant dispositio...

n. Motherese (also baby talk, infant-directed speech, caretaker speech) is speech directed at inf...

n. The illusion that a stationary object is moving. After looking at a moving object for several ...

n. An illusion of motion created when two visual stimuli are displayed in rapid alternation close...

n. 1. Any cell or system of cells which detects motion, as do many neurons in the visual system. ...

n. A visual depth cue that occurs when an observer moves and the movement of faraway objects is l...

n. 1. An illusion of motion created when visual stimuli are displayed in rapid alternation close ...

v. 1. To cause a desire or impulse to action. 2. To function as a goal or incentive.

n. 1. The hypothetical physio-mental force that leads humans and other animals to act. 2. In lear...

n. Any of numerous lines of study which investigate the purposes or causes of behavior. This has ...

n. Any neuron which connects to a muscle fiber and causes the contraction of the muscle when it f...

n. Acquired language disorder characterized by agrammatical, nonfluent, poorly articulated speech...

n. Loss of the ability to produce purposeful, skilled movements as the result of brain pathology....

n. Any area of the cerebral cortex which sends impulses, causing the initiation, coordination, or...

n. Posterior part of the frontal lobe involved in organizing, controlling, and executing voluntar...

n. The end of a motor neuron which connects the neuron to a muscle fiber and which generates a sm...

n. Any increase in coordination or skill at any bodily motion or complex task, which usually come...

n. Any of a large number of nerves whose neuronal axons convey information from the motor cortex ...

n. Any neuron which connects to a muscle fiber and causes the contraction of the muscle when it f...

n. Any neuron which connects to a muscle fiber and causes the contraction of the muscle when it f...

n. Any disorder which interferes with voluntary body movements, including all the aparaxias, diss...

n. Any of numerous illusions of movement, including the phi phenomenon, the waterfall illusion, t...

n. A visual depth cue that occurs when an observer moves and the movement of faraway objects is l...

n. The visual detection of object motion, which is accomplished by the magnocellular nerves with ...

n. An approach to psychotherapy that uses dance, rhythmic exercise, and other forms of bodily mov...

n. Magnetic resonance imaging, which uses a medical device for creating three-dimensional images ...

n. Any of numerous thin sheets of epithelial tissue and a deeper layer of connective tissue that ...

n. Either of a pair of ducts that appear in female mammalian embryos and eventually develop into ...

n. A visual illusion in a line with outward-facing wedges at the ends appears longer than the sam...

n. Multiculturalism is an ideology advocating that a society or organization should allow and inc...

n. Multicultural psychology concerns all aspects of human behavior as it occurs where people from...

n. (MDS) A scaling procedure in which similarities in a data set are represented by spatial proxi...

n. A mixed statistical procedure in which correlation matrices of relationships among variables a...

n. An outgrowth of behavior therapy in which the therapist assesses the client's behavior, affect...

n. A form of test or task in which a subject is given three or more fixed options and forced to c...

n. A numerical index (usually symbolized by R) of the degree to which a target variable can be pr...

n. (R) A numerical index of the degree to which a target variable can be predicted by two or more...

n. Theoretical perspective that intelligence extends beyond the analytical, verbal, and quantitat...

n. A statistical procedure in which more than one predictor variable is correlated with a target ...

n. The presence of two or more distinct personalities or identities in the same person who recurr...

n. A disorder characterized by the presence of two or more distinct personalities or identities i...

n. A statistical procedure in which more than one predictor variable is correlated with a target ...

n. (MS) A chronic and usually progressive disease in which there is inflammation of many small pa...

n. Any nerve cell which has more than one dendrite.

n. A tabular display of the correlations of several traits measured in several ways and all corre...

adj. Of or relating to the inclusion of more than one variable in a research design or statistica...

n. Any of several statistical procedures that analyze the variance among multiple independent and...

n. (MANCOVA) A calculation of the ratios of within-group variance to between-group differences in...

n. (MANOVA) A calculation of the ratios of within- to between-group differences in more than one ...

n. Any of several mathematical procedures that analyze the variance among multiple independent an...

n. A disorder characterized by repeatedly producing or feigning psychological or medical signs or...

n. A disorder characterized by repeatedly producing or feigning psychological or medical signs or...

n. A numerical method of describing or specifying colors by means of hue, saturation, and brightn...

n. A part of cholinergic transmission which is activated through a metabotropic route, necessaril...

n. A form of fibrous tissue that contracts when subject to electrical stimulation. This contracti...

n. Any of the sensory nerves connected to intrafusal fibers that lie within muscles and send impu...

n. A method of psychotherapy in which clients use the performance of music as a way of relieving ...

n. Any substance or form of energy such as X-rays and gamma rays which causes a permanent change ...

n. Any permanent change in the genetic information encoded in the DNA of a cell capable of being ...

n. The refusal or inability to speak, which may result from malformation or damage to the vocal a...

n. The medulla oblongata or the part of the fetal hindbrain that develops into the medulla oblong...

n. The fat and protein which form sheathing around nerves which electrically insulates them from ...

n. The sheath of fat and protein which forms around nerves which electrically insulates them from...

n. (MBTI) A personality inventory developed to measure Jungian polarities of introversion-extrove...

n. Near-sightedness, or difficulty in clearly perceiving distant objects due to elongation of the...

n. A reflex involving a single stretch receptor and a single efferent nerve fiber in which the st...

n. Prolonged rigidity or spasm of a muscle or part of a muscle.

n. A hallucinogenic drug found in nutmeg and mace which is structurally similar to mescaline and ...

n. Literally a true story, meaning ancient or traditional stories that contain significant cultur...

n. A phrase coined by Thomas Szasz, who suggests that categories of mental illness are not diseas...