Whole-Night Continuous Rocking Entrains Spontaneous Neural Oscillations with Benefits for Sleep and Memory.

Details

Serval ID
serval:BIB_9324687789E6
Type
Article: article from journal or magazin.
Collection
Publications
Title
Whole-Night Continuous Rocking Entrains Spontaneous Neural Oscillations with Benefits for Sleep and Memory.
Journal
Current biology
Author(s)
Perrault A.A., Khani A., Quairiaux C., Kompotis K., Franken P., Muhlethaler M., Schwartz S., Bayer L.
ISSN
1879-0445 (Electronic)
ISSN-L
0960-9822
Publication state
Published
Issued date
04/02/2019
Peer-reviewed
Oui
Volume
29
Number
3
Pages
402-411.e3
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Sensory processing continues during sleep and can influence brain oscillations. We previously showed that a gentle rocking stimulation (0.25 Hz), during an afternoon nap, facilitates wake-sleep transition and boosts endogenous brain oscillations (i.e., EEG spindles and slow oscillations [SOs]). Here, we tested the hypothesis that the rhythmic rocking stimulation synchronizes sleep oscillations, a neurophysiological mechanism referred to as "neural entrainment." We analyzed EEG brain responses related to the stimulation recorded from 18 participants while they had a full night of sleep on a rocking bed. Moreover, because sleep oscillations are considered of critical relevance for memory processes, we also investigated whether rocking influences overnight declarative memory consolidation. We first show that, compared to a stationary night, continuous rocking shortened the latency to non-REM (NREM) sleep and strengthened sleep maintenance, as indexed by increased NREM stage 3 (N3) duration and fewer arousals. These beneficial effects were paralleled by an increase in SOs and in slow and fast spindles during N3, without affecting the physiological SO-spindle phase coupling. We then confirm that, during the rocking night, overnight memory consolidation was enhanced and also correlated with the increase in fast spindles, whose co-occurrence with the SO up-state is considered to foster cortical synaptic plasticity. Finally, supporting the hypothesis that a rhythmic stimulation entrains sleep oscillations, we report a temporal clustering of spindles and SOs relative to the rocking cycle. Altogether, these findings demonstrate that a continuous rocking stimulation strengthens deep sleep via the neural entrainment of intrinsic sleep oscillations.
Keywords
Adult, Brain/physiology, Cross-Over Studies, Electroencephalography, Electromyography, Electrooculography, Female, Humans, Male, Memory Consolidation/physiology, Motion, Polysomnography, Sleep/physiology, Vestibule, Labyrinth/physiology, Young Adult, entrainment, memory, phase-amplitude coupling, sensory stimulation, sleep, slow oscillation, spindles
Pubmed
Web of science
Open Access
Yes
Create date
21/02/2019 9:40
Last modification date
28/02/2020 7:19
Usage data