RH BLOOD-GROUP INCOMPATIBILITY
Reaction of antigen and antibodies occurring when Rh-positive blood is allowed to mix with Rh-negative blood when a transfusion is…
RIGHT TO DIE
A right to medical assistance in committing suicide, usually referring to patients who are terminally ill.
RING-FINGER DERMATITIS
Possibly the result of detergent or irritation due to chemicals in a ring, or a psychosomatic disorder, a condition distinguished…
RISPERIDONE
Second-generation, atypical antipsychotic, employed in the treatment of schizophrenia, schizoaffective disorder, mixed and manic states characterizing bipolar disorder, and irritability…
ROBUSTNESS
Potential of a hypothesis-testing or approximation technique to generate legitimate measurements, despite transgressions against the presuppositions upon which the strategy…
ROLE CONFUSION
Doubt regarding a particular social or group task. Gender role behavior patterns typically correlated with the opposite gender. See also:…
ROUTE LEARNING
Finding out how to negotiate a course in a spatial environment by means of obtaining precise instructions, distances, and landmarks.…
RULE-BASED SYSTEM
Computer software wherein human practical knowledge is accumulated and employed as a series of "if-then" associations. See also: expert system;…
RADIAL MAZE
Used extensively to study spatial memory, a radial maze consists of arms radiating out from a central point. An animal…
RADIOIMMUNOASSAY (RIA)
A technique to determine the concentration of a substance in a blood or tissue sample. A mixture of the substance…
RANDOM OBSERVATION
An observation lacking planned execution. An observation without control or deliberation and not part of a schedule.
RAPID EYE MOVEMENT (REM)
Frequently observed during dreaming sleep. Rapid eye movement is coordinated movement of the eyes behind the eyelids.
RATIONALISM N 1
A philosophy that holds the following to be true: 1. It is possible to gain knowledge of reality by reason…
REACTANCE THEORY
The theory describing a motivational state consisting of distress, anxiety and desire to restore freedoms taken away when an individual…
REACTIVE SCHIZOPHRENIA
A sudden onset of schizophrenic behavior in response to environmental factors. The prognosis for eventual recovery is generally more optimistic…