rapid-eye-movement sleep

rapid-eye-movement sleep

[′rap·əd ¦ī ‚müv·mənt ‚slēp]
(psychology)
That part of the sleep cycle during which the eyes move rapidly, accompanied by a loss of muscle tone and a low-amplitude encephalogram recording; most dreaming occurs during this stage of sleep. Abbreviated REM sleep.
References in periodicals archive ?
Rapid-eye-movement sleep behaviour disorder as an early marker for a neurodegenerative disorder: A descriptive study.
Gelpi et al., "Neurodegenerative disease status and post-mortem pathology in idiopathic rapid-eye-movement sleep behaviour disorder: an observational cohort study," The Lancet Neurology, vol.
Montplaisir, "Rapid-eye-movement sleep behaviour disorder and neurodegenerative diseases," Lancet Neurology, vol.
* 90 minutes: Allows the sleeper to experience light, moderate, and slow-wave sleep, as well as rapid-eye-movement sleep, which is associated with dreaming.
Idiopathic rapid-eye-movement sleep disorder: associations with antidepressants, psychiatric diagnoses, and other factors, in relation to age of onset.
If you don't get into restorative rapid-eye-movement sleep, you will often (like postpartum women during the period of frequent feedings) have an increase in vivid dreams.
It also measures how much time is spent in rapid-eye-movement sleep - the period when most dreams happen.
Furthermore, severity of sleep apnea as measured by the apnea-hypopnea index, and the degree of oxygen desaturations during rapid-eye-movement sleep, accounted for more than 90% of the variability in measures of glucose tolerance including hemoglobin [A.sub.1c] levels.
Heintz, Hatten, and other GENSAT researchers discovered that Gscl is produced by neurons in the interpeduncular nucleus, the brain region that also regulates rapid-eye-movement sleep. Another finding reported in this paper relates to the striatum, which degenerates in patients with Parkinson disease.
The shortened sleep periods included a marked decline in rapid-eye-movement sleep, which is associated with dreaming.
Stockner et al., "Decreased striatal dopamine transporter uptake and substantia nigra hyperechogenicity as risk markers of synucleinopathy in patients with idiopathic rapid-eye-movement sleep behaviour disorder: a prospective study," The Lancet Neurology, vol.
After that comes the four or five 90-minute segments of rapid-eye-movement sleep in which the brain digs into the important stuff that has happened to us in the past few days and affixes it to our long-term memories.