Psychology Glossary - R

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Rapid Eye Movement (REM):

It is the part of the sleep during which people dream. It is named after a characteristic of this part of sleep, which is much different from deep sleep. During a night of sleep, a person usually has about four or five periods of REM sleep, which are quite short at the beginning of the night, but long at the end.

Reductionist psychology:

A form of psychology which is based upon an examination of phenomena through the study of their individual components; thus, in social psychology, the study of the group through the psychology of the individuals that make up that group.

Repertory grid:

In psychotherapy, a grid method, base on an individual’s particular judgements about people in their environment and from which constructs can be constructed to be elaborated on in interview.