rapid eye movement sleep

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Related to REM dream: REM stage of sleep

rap·id eye move·ment sleep

, REM sleep
that state of deep sleep in which rapid eye movements, alert EEG pattern, and dreaming occur; several central and autonomic functions are distinctive during this state.

rapid eye movement sleep

See REM sleep, Sleep stages.

Rapid eye movement (REM) sleep

A phase of sleep during which the person's eyes move rapidly beneath the lids. It accounts for 20-25% of sleep time. Dreaming occurs during REM sleep.
Mentioned in: Sleep Disorders


a period of rest during which volition and consciousness are in partial or complete abeyance and the bodily functions partially suspended; a behavioral state marked by characteristic immobile posture and diminished but readily reversible sensitivity to external stimuli.

sleep deprivation
caused in animals by constant stimulation, e.g. preventing them from lying down, is followed by a compensatory period of prolonged sleep whenever the opportunity arises.
sleep disorders
put to sleep
a common euphemism for euthanasia.
rapid eye movement sleep
that type of sleep characterized by low voltage but fast electroencephalographic activity and little muscular activity except of the ocular muscles. Believed to be the critical or necessary component of sleep. Called also 'sleep of the body' and paradoxical sleep. Called also REM.
References in periodicals archive ?
This description of dream content, with self as hero and others as good or bad, applies almost universally to REM dreams.
We might postulate that the first two of these functions are served by REM dreams, and the third by NREM dreams.
Research documents that the representation of Self in REM dreams is frequently similar to the perception of Self in wakefulness (point 5 in the scale), with almost all representations falling in the range of points 4 and 5.
The 5-7 year olds seldom report any self activity in their accounts of REM dreams, even though at the same age children are reporting activities as the most salient aspect of their waking self concept (Keller, et al, 1978).
Of great importance here, though, and against such theories, is Natale & Battaglia's (1990-91) finding that remote memory sources occur 'fairly evenly' between sleep onset mentation, sleep onset mentation after arousal from non-REM sleep, state-2 dreams and REM dreams.