R

n23

REFLEX ARC

Neural circuit activated in a reflex response. See also: disynaptic arc, monosynaptic arc, polysynaptic arc.

REFRACTORY PERIOD

A duration during which nerves or muscles are unable to react to stimuli, especially following prior stimulation. An absolute refractory

REGRESSION LINE

Curve fitted into a set of paired data in regression analysis; in linear regression, the curve becomes a straight line.

REHABILITATION PROGRAM

Generally designed to meet the specific needs of the subject, a cohesive system of rehabilitation services intended to support the

REINFORCER

When occurring in a dependent relationship, contingency, or response, a stimulus or condition which effectively brings about reinforcement to a

RELATIONAL FRAME

Framework which allows description of a relationship between two entities according to prior experience.

RELATIVE RISK

Comparison of the ratio of occurrence of a specific disorder or condition between a group having specific risk factors as

RELEVANT-IRRELEVANT TEST

Query style in polygraph testing which results in physiological responses to questions relevant to a crime, which are then compared

REM SLEEP

Normal stage of sleep, characterized by random, rapid movement of the eyes. Criteria for determining REM sleep include low muscle

REMORSE

Bitter regret, moral anguish stemming from contrition for past misdeeds.

RENSHAW CELL

Inhibitory interneurons present in the gray matter of the spinal cord; component of a negative feedback system which curtails fast,

REPETITION PRIMING

Initial presentation of a stimulus changes the way in which a subject will react to that stimulus at a later

REPRESENTATIVE FACTORS

In studies of higher primates, mental functions which hypothetically exist which allow the animal to respond to a stimulus even

REPRODUCTIVE MEMORY

A type of memory which may fall victim to errors in either reconstructive memory or constructive memory, frequently when recalled

RESIDENCE RATE

Measure of institutional occupancy by type within a specified population on a specific date.

RESISTANCE TO EXTINCTION

The perseverance of any conditioned response in the face of extinction.

RESPONDENT

Any organism which provides a response to stimulus. Interviewee or subject answering a questionnaire. Any reflex attained through Pavlovian conditioning.

RESPONSE PREVENTION

Behavioral therapeutic method employed to treat obsessive-compulsive disorder wherein the sufferer is exposed to cues which elicit compulsive or obsessive

RESTATEMENT

In a therapy situation, a therapist or counselor will repeat or rephrase a subject's own words to make certain that

RESURGENCE

A renewal of a response which has been reinforced and then stifled in an interval of extinction for another, secondarily