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Power spectrum analysis and heart rate variability in Stage 4 and REM sleep: evidence for state‐specific changes in autonomic dominance
Author(s) -
BERLAD I.,
SHLITNER A.,
BENHAIM S.,
LAVIE P.
Publication year - 1993
Publication title -
journal of sleep research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 117
eISSN - 1365-2869
pISSN - 0962-1105
DOI - 10.1111/j.1365-2869.1993.tb00067.x
Subject(s) - non rapid eye movement sleep , wakefulness , heart rate variability , heart rate , psychology , sleep (system call) , k complex , sleep stages , autonomic nervous system , slow wave sleep , medicine , polysomnography , anesthesia , neuroscience , electroencephalography , blood pressure , computer science , operating system
SUMMARY The present study investigated autonomic activity during NREM and REM sleep stages and wakefulness by spectral analysis of heart rate variability. The results demonstrated that NREM sleep in humans was characterized by a widely different autonomic activation pattern than REM sleep: high parasympathetic activity was found in NREM, while REM was characterized by attenuated vagal tone, and augmented sympathetic activity. The overall pattern during wakefulness showed an intermediate position between NREM and REM patterns; parasympathetic activity was lower than in NREM and higher than in REM, with an opposite trend for sympathetic activity.