A new function of rapid eye movement sleep: improvement of muscular efficiency

Physiology & Behavior
Zi-Jian Cai

Abstract

Previously I demonstrated that the slow wave sleep (SWS) functioned to adjust the emotional balance disrupted by emotional memories randomly accumulated during waking, while the rapid eye movement (REM) sleep played the opposite role. Many experimental results have unambiguously shown that various emotional memories are processed during REM sleep. In this article, it is attempted to combine this confirmed function of REM sleep with the atonic state unique to REM sleep, and to integrate a new theory suggesting that improvement of muscular efficiency be a new function of REM sleep. This new function of REM sleep is more advantageous than the function of REM sleep in emotional memories and disinhibited drives to account for the phylogenetic variations of REM sleep, especially the absence of REM sleep in dolphins and short duration of REM sleep in birds in contrary to that in humans and rodents, the absence of penile erections in REM sleep in armadillo, as well as the higher voltage in EEG during REM sleep in platypus and ostrich. Besides, this new function of REM sleep is also advantageous to explain the association of REM sleep with the atonic episodes in SWS, the absence of drastic menopausal change in duration of REM sleep, and...Continue Reading

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Citations

Dec 9, 2015·Journal of Neuroscience Methods·Benjamin D YettonSara C Mednick
Feb 6, 2020·International Journal of Sports Physiology and Performance·Mohamed RomdhaniOmar Hammouda
Jul 2, 2020·International Journal of Environmental Research and Public Health·Omar BoukhrisHamdi Chtourou
Oct 13, 2016·PloS One·Fabianne FurtadoArturo Forner-Cordero
Jun 5, 2018·Journal of Strength and Conditioning Research·Mohamed RomdhaniNizar Souissi
Sep 25, 2021·Scandinavian Journal of Medicine & Science in Sports·Petros G BotonisArgyris G Toubekis

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