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RHODOPSIN

Photosensitive chromoprotein in the retinal rods which is bleached by light, allowing stimulation of retinal sensory endings. Also known as:

RIGHT BRAIN

Cerebral hemisphere located on the right of the corpus callosum which controls the left side of the body. See also:

RIMAS

Anagram to denote a reversible inhibitor of monoamine oxidase. See also: monoamine oxidase inhibitors.

RISKY IIIN, RISK-AS-FEELINGS THEORY

Concept which states decisions made in scenarios including an element of danger are frequently based on emotionally charged responses, including

ROBOT

Machine designed to carry out the duties of a human. State of emotional detachment in humans which is insensitive and

ROLANDIC CORTEX

Motor area of the cerebral cortex lying just anterior to the central sulcus and comprising part of the precentral gyrus;

ROLE-DIVIDED PSYCHOTHERAPY

Method of group psychoanalysis wherein participants get together for a portion of the treatment period without the counselor and then

ROSENTHAL EFFECT

Theory which posits that the expectations of an experimenter concerning the results of an experiment may have an unconscious effect

ROUGHNESS DISCRIMINATION TEST

Evaluation of somatosensory response wherein individuals touch various surfaces and are then asked to conclude which has the greatest degree

RULE OF ABSTINENCE

During psychoanalysis, the guideline that the individual ought to refrain from any gratifications which may divert him or her from

RADEX THEORY OF INTELLIGENCE

Louis Guttman, a U.S. psychologist proposed this theory of intelligence. The theory states that the organization of mental ability can

RADIOACTIVE TRACER

A chemical compound tagged with a radioactive isotope. During normal biological functions, the isotopes travel can be mentored in body

RANDOM NUMBER GENERATOR (RNG)

A device or software to produce true, random output. In parapsychological experimentation, true random number generators are utilized to test

RANDOMIZED-RESPONSE TECHNIQUE

A procedure designed to reduce the influence of social desirability bias in measuring attitudes in a aggregate group. Subjects or

RAPID ALTERNATING MOVEMENTS

A test consisting of rapidly changing hand positions in a sequence patterned designed to measure motor control and coordination.

RATING SCALE

A scale used to assign scores to subjects or objects in a test.

RATIONAL TYPE

According to Jung, and based on analytical psychology, one of two major categories of functional type. It is comprised of

RCUPTAKC

The biological process where neurotransmitter chemicals released from the synapse are taken up by the presynaptic neuron that released them.

REACTIVE MANIA

A mania episode initiated by an external event.

READING READINESS

Developing the necessary skills and abilities for reading. Components of reading readiness include auditory and visual discrimination, cognitive ability and