non–rapid eye movement sleep
- non–rapid eye movement sleep
- NREM sleep the dreamless period of sleep, consisting of four stages of succeeding depth, during which the brain waves are slow and of high voltage, and autonomic activities, such as heart rate and blood pressure, are low and regular. Brief episodes of REM sleep occur at intervals during this type of sleep; in adults, about 80 per cent of sleep is NREM sleep. Called also slow wave s.
Medical dictionary.
2011.
Look at other dictionaries:
Rapid eye movement sleep — (REM) sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. They occur at intervals of 1 2 hours and are quite variable in length. An… … Medical dictionary
Sleep — The body’s rest cycle. Sleep is triggered by a complex group of hormones that are active in the main, and that respond to cues from the body itself and the environment. About 80 percent of sleep is dreamless, and is known as non rapid eye… … Medical dictionary
NREM — Abbreviation for nonrapid eye movement. * * * nonrapid eye movement [sleep] * * * non–rapid eye movement; see under sleep … Medical dictionary
