slow-wave sleep
noun Date: 1967 a state of deep usually dreamless sleep that occurs regularly during a normal period of sleep with intervening periods of REM sleep and that is characterized by delta waves and a low level of autonomic physiological activity

New Collegiate Dictionary. 2001.

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  • Slow-wave sleep — (SWS), often referred to as deep sleep, consists of stages 3 and 4 of non rapid eye movement sleep, according to the Rechtschaffen Kales (R K) standard of 1968.[1] As of 2008, the American Academy of Sleep Medicine (AASM) has discontinued the use …   Wikipedia

  • slow-wave sleep — n a state of deep usu. dreamless sleep that occurs regularly during a normal period of sleep with intervening periods of REM sleep and that is characterized by delta waves and a low level of autonomic physiological activity called also non REM… …   Medical dictionary

  • slow-wave sleep — slow′ wave′ sleep n. phl 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 • Etymology: 1965–70 …   From formal English to slang

  • slow-wave sleep — ˈ ̷ ̷ ˌ ̷ ̷ noun : a state of deep usually dreamless sleep that occurs regularly during a normal period of sleep with intervening periods of REM sleep and that is characterized by delta waves and a low level of autonomic physiological activity *… …   Useful english dictionary

  • slow-wave sleep — /sloh wayv /, Physiol. a recurrent period of deep sleep, typically totaling five or six hours a night, distinguished by the presence of slow brain waves and by very little dreaming. Also called S sleep. Cf. REM sleep. [1965 70] * * * …   Universalium

  • Unihemispheric slow-wave sleep — (USWS) is sleep in which one half of an animal s brain is at rest, while the other half remains alert. During USWS, only one eye is closed, allowing the animal to remain alert to activity in its environment. It has been observed in various… …   Wikipedia

  • Slow Wave — is a weekly dream based comic strip by Jesse Reklaw. It has been syndicated to alternative newspapers around the U.S. since 1995, and also appears online.DescriptionReklaw describes the strip as a collective dream diary authored by people from… …   Wikipedia

  • Sleep (non-human) — Sleep in non human animals refers to how the behavioral and physiological state of sleep, mainly characterized by reversible unconsciousness, non responsiveness to external stimuli, and motor passivity, appears in different categories of animals …   Wikipedia

  • Sleep disorder — Classification and external resources ICD 10 F51, G47 ICD 9 …   Wikipedia

  • Sleep apnea — Classification and external resources Obstructive sleep apnea ICD 10 G …   Wikipedia

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