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Psychology's "Top 100" Terms & Concepts

Source: (Psychology Teacher Network, Sept. - Oct. 1996)

References
McLeod, S. A. (2007) Simply Psychology [On-line] UK: Available: http://www.simplypsychology.pwp.blueyonder.co.uk/ Accessed: February 22, 2010

Terms : Hide Images
67266697Absolute thresholdintensity level at which one can detect a stimulus 50% of the time
67266698Action potentialthe electrical process by which information is transmitted the length of an axon
67266699Aggressionovert or suppressed hostility, either innate or resulting from continued frustration and directed outward or against oneself
67266700Anxietya state of apprehension and psychic tension occurring in some forms of mental disorder
67266701Anxiety disordersmental problems characterized mainly by anxiety. They include panic disorder, specific phobias, and obsessive compulsive disorders.
67266702Associationismany of several theories that explain complex psychological phenomena as being built up from the association of simple sensations, stimuli and responses, or other behavioral or mental elements considered as primary
67266703Attachmenttheory developed by Harlow; types include secure and insecure
67266704Attitudea relatively enduring evaluation of a person or thing; Asch demonstrated that this doesn't always match one's behavior
67266705Attribution theorya way of explaining others' behavior by either one's disposition or one's situation
67266706Avoidance learningAvoidance learning is the process by which an individual learns a behavior or response to avoid a stressful or unpleasant situation.
67266707Behaviora perspective on psychology that sees psychology as an objective science without reference to mental states
67266708Binocular depth cuesretinal disparity and convergence which enable people to determine depth using both eyes
67266709Central nervous systemconsists of the brain and the spinal cord
67266710Cerebellum:brain structure that controls well-learned motor activities like riding a bike
67266711Cerebral cortexthe fabric of interconnecting cells that blankets the brain hemispheres; the brain's center for information processing and control
67266712Cerebral hemisphereseither of the two symmetrical halves of the cerebrum, designated right and left; in mammals, the cerebral hemispheres are connected by the corpus callosum, a transverse band of nerve fibers
67266713Classical conditioningmethod of learning in which a neutral stimulus can be used to elicit a response that is usually a natural response to a stimulus
67266714Cognitive developmentis defined as thinking, problem solving, concept understanding, information processing and overall intelligence
67266715Cognitive dissonance theorya highly motivating state in which people have conflicting cognitions, especially when their voluntary actions conflict with their attitudes
67266716Conditioned stimulusin classical conditioning, a previously neutral stimulus that comes to elicit he conditioned response
67266717Conditioned reflexa new or modified response elicited by a stimulus after conditioning, also known as a conditioned response
67266718Conformityadjusting behavior to meet a group's standard
67266719Consciousnessone's awareness of one's environment and oneself
67266720Contrastthe phenomenon that when two different but related stimuli are presented close together in space and/or time they are perceived as being more different than they really are
67266721Control groupsubjects in an experiment who do not receive application of the independent variable but are measured nonetheless for the dependent variable
67266722Correlation coefficienta positive one near 1.0 indicates two variable are positively related; a negative number indicates a negative relationship; zero indicates no relationship
67266723Correlational methoda type of research that is mainly statistical in nature; also, correlational studies determine relationship between two variables
67266724Dendritea branch off the cell body of a neuron that receives new information from other neurons
67266725Deoxyribonucleic acidthe complex substance that is the main carrier of genetic information for all organisms and a major component of chromosomes
67266726Dependent variablethe variable that the experimenter measures at the end of the experiment
67266727Depressiona psychiatric disorder characterized by an inability to concentrate, insomnia, loss of appetite, feelings of extreme sadness, helplessness, etc.
67266728Depth perceptionan ability that we exercise by using both monocular and binocular cues
67266729Determinism:the scientific doctrine that all occurrences in nature take place in accordance with natural laws
67266730Developmental stages:periods of life initiated by significant transitions or changes in psychical or psychological functioning
67266731Distance cuesin order to receive information from the environment we are equipped with sense organs e. g. eye, ear, nose; each sense organ is part of a sensory system which receives sensory inputs and transmits sensory information to the brain
67266732Egothe Latin for "I"; in Freud's theories, the mediator between the demands of the id and the superego
67266733Electroencephalographa method of representation of brain waves
67266734Empiricisma system of acquiring knowledge that rejects all o priori knowledge and relies solely upon observation, experimentation, and induction
67266735Etiologythe study of the causes for and origin of any phenomena, also spelled aetiology.
67266736Evolutiona perspective that stresses the value of behavior in Darwinian terms
67266737Experimental groupin an experiment, the group that is exposed to the treatment, that is, to one version of the independent variable
67266738Extinctionin classical conditioning, the process of eliminating the previously acquired association of the conditioned stimulus and conditioned response
67266739Extroversionone of the Big Five, a personality trait orients one's interests toward the outside world and other people, rather than inward
67266740Forgetting curvea graph plotting the amount of retention and forgetting over time for a certain batch of material, such as list of syllables; a typical curve is steep first, becoming flatter as time goes on
67266741Free associationa clinical technique of psychoanalysis devised by Sigmund Freud
67266742Free recallan individual attends to previously processed stimuli (i.e. words, sounds, numbers, etc) and uses subjective organization to retrieve the memories in categories
67266743Frequencya theory of hearing which states that the rate of nerve impulses traveling up the auditory nerve matches the tone's frequency
67266744FunctionalismWilliam James's school of thought that stressed the adaptive and survival value of behaviors
67266745Gestalta German word for "whole", it refers to our tendency to perceive incomplete figures as complete
67266746Gestalt Psychologysought to understand how the brain works by studying perception, arguing that percepts consist of meaningful wholes (in German, Gestalts)
67266747Hypothesisa prediction of how the an experiment will turn out
67266748Idin Freud's conception, the repository of the basic urges toward sex and aggression
67266749Independent variablea type of variable manipulated by the experimenter
67266750Information processinghumans accomplish this either in parallel (unconsciously) or in serial fashion (consciously)
67266751Instrumental behavioris a concept stemming from the Behaviorist movement, which asserts that disorders are learned responses to traumatic experiences
67266752Intelligencethe ability to learn from experience, to use information, to understand things
67266753Intelligence quotientthe average is 100; there are many definitions of this attribute, including multiple and crystallized
67266754Introversiona personality trait that signifies that one finds energy from internal sources rather than external ones
67266755Just noticeable differencethe threshold at which one can distinguish two stimuli that are of different intensities, but otherwise identical
67266756Law of effectThorndike's rule that behaviors which have positive outcomes tend to be repeated
67266757Long term memoryrefers to memory that is stored effectively in the brain and may be accessed over an extended period of time
67266758Longitudinal researcha type of study in which one group of subjects is followed and observed (or examined, surveyed, etc.) for an extended period of time (years)
67266759Meaningmeaning is communicated through the use of language, (and has to do with the distribution of signs in sign relations (symbols), while in a relationship between ontology and truth, and as a reference or equivalence)
67266760Mental illnessa psychological or physiological pattern that occurs in an individual and is usually associated with distress or disability that is not expected as part of normal development or culture.
67266761Mental imagerya mental representation that mirrors or resembles the thing it represents; mental images can occur in many and perhaps all sensory modalities
67266762Nature vs. nurturethe long-standing discussion over the relative importance of nature (heredity) and nurture (environment) in their influence on behavior and mental processes
67266763NeocortexThe newer portion of the cerebral cortex that serves as the center of higher mental functions for humans.
67266764Neurotransmittera chemical that is released by a neuron for the purpose of carrying information across the gaps (synapses) between neurons
67266765Normal distributiondescribes a symmetrical, bell shaped curve that shows the distribution of many physical and psychological attributes
67266766Obedienceis a form of social influence where an individual acts in response to a direct order from another individual, who is usually an authority figure
67266767Operant conditioninga method of influencing behavior by rewarding desired behaviors and punishing undesired ones
67266768Origins of Speciesa book by Charles Darwin where he discusses the theory of "natural selection of spices," where he coined the term "survival of the fittest"
67266769Personalitya consistent pattern of thinking, acting, feeling
67266770Phobiasa group of anxiety disorders involving a pathological fear of a specific object or situation
67266771Placebo effectphenomenon that some people get better even though they receive not medication but an inert substance which should have no medical effect
67266772Positive reinforcementa stimulus presented after a response and increasing the probability of that response happening again
67266773Prejudicea negative attitude formed toward an individual or group without sufficient experience with the person or group
67266774Pro-social behaviorpositive, constructive, helpful behavior; the opposite of antisocial behavior
67266775Psychoanalytic theoryFreud's personality theory, basis for his therapeutic technique called Psychoanalysis
67266776Psychosisa disorder involving profound disturbances in perception, rational thinking, or affect
67266777Psychosomatic disordercondition in which psychological stresses adversely affect physiological (somatic) functioning to the point of distress.
67266778PsychotherapyPsychotherapy is a general term for a process of treating mental and emotional disorders by talking about your condition and related issues with an educated, trained and licensed professional
67266779Rehearsalthe conscious repetition of information, either to maintain it in consciousness or to encode it for storage
67266780Reinforcementis an increase in the strength of a response following the change in environment immediately following that response
67266781Right hemispherethe cerebral hemisphere to the right of the corpus callosum that controls the left half of the body
67266782SampleSampling is the process of selecting units (e.g., people, organizations) from a population of interest so that by studying the sample we may fairly generalize our results back to the population from which they were chosen.
67266783Semantic memorya subdivision of declarative memory that stores general knowledge, including the meaning of words and concepts
67266784Serial position functionrefers to the concept of "magic seven," which stipulates that people normally remember the first seven items on a list, for example, after which recall they start forgetting the following items
67266785Short-term memorya system for temporarily storing and managing information required to carry out complex cognitive tasks such as learning, reasoning, and comprehension.
67266786Significance levelthe probability of a false rejection of the null hypothesis in a statistical test; also known as level of significance
67266787Social influenceis the change in behavior that one person causes in another, intentionally or unintentionally, as a result of the way the changed person perceives themselves in relationship to the influencer, other people and society in general
67266788Socializationthe process by which children learn the behaviors, attitudes, and expectations required of them by their society or culture
67266789Traitsa stable personality characteristics that are presumed to exist within the individual and guide his or her thoughts and actions under various conditions
67266790Unconsciousin classical Freudian theory, the psychic domain of which the individual is not aware but that houses memories, desires, and feelings that would be threatening if brought to consciousness
67266791Unconscious motivationhaving a desire to engage in an activity but being consciously unaware of the desire
67266792Visual depth perceptionThe ability to perceive spatial relationships, especially distances between objects, in three dimensions

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