A role for spindles in the onset of rapid eye movement sleep.

Bandarabadi, Mojtaba; Gutierrez Herrera, Carolina; Gent, Thomas C.; Bassetti, Claudio; Schindler, Kaspar; Adamantidis, Antoine R. (2020). A role for spindles in the onset of rapid eye movement sleep. Nature Communications, 11(1), p. 5247. Springer Nature 10.1038/s41467-020-19076-2

Preview

Text Bandarabadi, 2020, A role for spindles in the onset of REM.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (4MB) | Preview

Sleep spindle generation classically relies on an interplay between the thalamic reticular nucleus (TRN), thalamo-cortical (TC) relay cells and cortico-thalamic (CT) feedback during non-rapid eye movement (NREM) sleep. Spindles are hypothesized to stabilize sleep, gate sensory processing and consolidate memory. However, the contribution of non-sensory thalamic nuclei in spindle generation and the role of spindles in sleep-state regulation remain unclear. Using multisite thalamic and cortical LFP/unit recordings in freely behaving mice, we show that spike-field coupling within centromedial and anterodorsal (AD) thalamic nuclei is as strong as for TRN during detected spindles. We found that spindle rate significantly increases before the onset of rapid eye movement (REM) sleep, but not wakefulness. The latter observation is consistent with our finding that enhancing spontaneous activity of TRN cells or TRN-AD projections using optogenetics increase spindle rate and transitions to REM sleep. Together, our results extend the classical TRN-TC-CT spindle pathway to include non-sensory thalamic nuclei and implicate spindles in the onset of REM sleep.

Interest & Impact

Downloads

157 since deposited on 06 Nov 2020
35 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item