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REPRESSION-SENSITIZATION

A defense mechanism employed to avoid the arrival of, and having to respond to, threatening stimuli.

RESEARCH

Scientific or scholarly inquiry by which efforts are made to discover and confirm facts, or to allow investigation of a

RESIDUAL ATTENTION-DEFICIT DISORDER

A condition listed in DSM-III; child having been diagnosed with attention-deficit-hyperactivity disorder (ADHD) is diagnosed at a later date as

RESOURCE DEFENSE POLYGYNY

Polygyny which may occur when a male defends territory with sufficient resources for more than one female to breed and

RESPONSE CIRCUIT

A neural pathway which originates at the receptor and concludes at the effector.

RESPONSE STYLE

A set of responses generally emanating from dispositional factors instead of situational ones.

RESTORATION EFFECT

Circumstances wherein the mind instinctively restores facts or information absent in a stimulus. See also: closure.

RETEST RELIABILITY

Estimation of the accuracy of a test or measurement material, attained from the correlation of scores for the same individual

RETINAL OSCILLATIONS

Vacillations of visual input which continue following limited visual stimulus.

RETROGRADE AMNESIA

Loss of ability to recall events which happened just prior to the onset of amnesia. See also: temporal gradient. Compare

REVERBERATORY CIRCUIT

Neural circuits which as essentially always active, allowing impulses to repeatedly circulate after having been triggered by an initial stimulus

REVERSION

Hereditary trait which has not expressed itself in the parent, allowing offspring to look more like a distant ancestor than

RHEOENCEPHALOGRAPHY

Technique which allows continuous registration of cerebral blood flow.

RIBOT'S LAW 1

Theory which states that the newest memories are the most susceptible to interruption from brain damage.

RIGHT-HEMISPHERE CONSCIOUSNESS

Assumption which is made regarding the right cerebral hemisphere as being conscious, as with the left hemisphere, despite the fact

RISK FACTOR

Any behavioral, hereditary, environmental, or other consideration which increases the likelihood of developing a disease or disorder, or becoming involved

RITUAL AHUSE

Defined as systematic sexual, physical, and psychological abuse which is carried out over a long period of time, usually against

ROD VISION

Vision which is completely dependent on structures within the retina called rods, which function properly only in dim lighting conditions.

ROLE EXPECTATIONS

Beliefs concerning the qualities, behaviors, and characteristics suitable to a specific role; could be conveyed to the role's holder by

ROMBERG'S SIGN

A diagnostically important signal of specific neurological afflictions, such as locomotor ataxia, comprised of a swaying movement and disequilibrium when