slow-wave sleep


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Related to slow-wave sleep: deep sleep

slow′-wave′ sleep`


n.
a recurrent period of deep sleep distinguished by the presence of slow brain waves and by very little dreaming. Also called S sleep. Compare REM sleep.
[1965–70]
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References in periodicals archive ?
The entire cycle of slow-wave sleep and REM takes about 90 minutes.
The neurons of nucleus accumbens were found to have significant ability to induce slow-wave sleep, which is characterized by high-voltage slow brain waves and accounts for the majority of our natural sleep.
It is called slow-wave sleep and it seems to be involved with memory formation, rather than dreaming.
1) Slow-wave sleep is associated with a decreased use of glucose mediated by the brain, stimulation of growth hormone release, inhibition of cortisol secretion, and a decrease in sympathetic activity.
sup][2] Absent of slow-wave sleep and significantly decreased REM sleep with high arousal indices demonstrated the patient's poor sleep quality.
With increasing age, there are substantial changes to sleep quantity and quality, including changes to slow-wave sleep, spindle density, and sleep continuity/fragmentation.
For example, frequent awakenings that disrupt deep, slow-wave sleep appear to interfere with the movement of information from short-term to long-term memory storage, and have been linked to a reduction in the number of gray cells in key brain regions.
During a deep sleep stage known as slow-wave sleep, a network of nerve cells in the left side of the brain showed less sleep-related activity than the corresponding network on the right side.
A recent study from the American Academy of Sleep Medicine reported that people who ate more fiber tended to spend more time in restorative deep, slow-wave sleep compared to those who ate more saturated fat and sugar.
6) Slow-wave sleep appears to be most necessary for recovering from sleep deficit; it is also vital for reorganising the central nervous system and integrating learning and memory.
A short nap finishes before the onset of deep slow-wave sleep.
Plus, according to recent research at the University of Rochester, "most toxins, including the ones linked with Alzheimer's disease, are flushed from your brain during slow-wave sleep.