REFRACTORY

Any disease or disability that resists treatment or fails to react to a prior efficacious therapy. In, neurophysiology, a neuron or muscle cell...

REGRESSION EQUATION

Equation which represents the association among the specific values of one variable and the noted values of a different variable. Permits prediction of...

REHABILITATION ENGINEERING

A discipline of integrated areas of study in various fields which develop commodities, programs, and settings to help augment quality of life situations for...

REINFORCEMENT THEORY

Any approach which is constructed to detail the system of reinforcement.

RELATION

Logical or natural association of two or more entities; relevance, connection between parties. Connection between individuals by marriage or blood, kinship. Logical association between...

RELATIVE FREQUENCY

Proportional examination of frequency of some category of event to the total frequency of that event in all categories and types.

RELEASER

Highly specific stimulus that triggers species-specific behavior. See also: imprinting, innate releasing mechanism. Also known as: releasing stimulus, sign stimulus.

REM LATENCY

Period between a subject falling asleep and the onset of REM sleep.

REMINYL

Trade name of galantamine, often prescribed to decelerate cognitive decline associated with Alzheimer's disease.

RENIN-ANGIOTENSIN SYSTEM

Discriminating manager of the aldosterone biosynthetic pathway. Achieves its goals by increasing aldosterone production, as well as sodium retention, due to drops in...

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