Nonreplicability of Seasonal Rhythm in REM Sleep in a Subtropical Climate | Zendy

Paula Herer | Zendy; Peretz Lavie | Zendy

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Nonreplicability of Seasonal Rhythm in REM Sleep in a Subtropical Climate

Author(s) -

Paula Herer,

Peretz Lavie

Publication year - 1997

Publication title -

sleep

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.222

H-Index - 207

eISSN - 1550-9109

pISSN - 0161-8105

DOI - 10.1093/sleep/20.5.359

Subject(s) - sleep (system call) , non rapid eye movement sleep , eye movement , sleep apnea , rapid eye movement sleep , audiology , sleep debt , medicine , slow wave sleep , apnea , psychology , anesthesia , psychiatry , electroencephalography , neuroscience , computer science , operating system

The present paper attempts to replicate Askenasy and Goldstein's (1995) findings of seasonality in rapid eye movement (REM) sleep measures in patients recorded in Israel. Analysis of sleep stage data of 706 nonselected male sleep apnea patients failed to find seasonality in REM sleep measures. In contrast, our data revealed stability of REM time with a maximum difference between seasons of 7.0 minutes. Age differences were found in sleep efficiency, true sleep time, and amount and percentage of REM sleep, with patients over 60 having a lower sleep efficiency, shorter true sleep, and REM sleep time than patients under 60. Rapid eye movement latency was also found to differ according to apnea severity, with patients who had > 40 apneas and hypopneas per hour of sleep having a longer latency than those with fewer apneas and hypopneas.

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