Distinct features of fast oscillations in phasic and tonic rapid eye movement sleep

• Titel: Distinct features of fast oscillations in phasic and tonic rapid eye movement sleep
• Mitwirkende: Brankačk, Jurij
• Mitwirkende: Scheffzük, Claudia
• Mitwirkende: Draguhn, Andreas
• Verf.angabe: Jurij Brankačk, Claudia Scheffzük, Valeriy I. Kukushka, Alexei L. Vyssotski, Adriano B.L. Tort and Andreas Draguhn
• E-Jahr: 2012
• Jahr: 20 July 2012
• Umfang: 4 S.
• Illustrationen: Illustrationen
• Fussnoten: Gesehen am 12.02.2025
• Titel Quelle: Enthalten in: Journal of sleep research
• Ort Quelle: Oxford [u.a.] : Wiley-Blackwell, 1992
• Jahr Quelle: 2012
• Band/Heft Quelle: 21(2012), 6, Seite 630-633
• ISSN Quelle: 1365-2869
• DOI: doi:10.1111/j.1365-2869.2012.01037.x
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: cross-frequency coupling
• Sach-SW: gamma
• Sach-SW: mouse
• Sach-SW: neocortex
• Sach-SW: REM sleep
• Sach-SW: theta
• K10plus-PPN: 1485765846

Abstract

Spatiotemporal activity patterns of neurones are organized by different types of coherent network oscillations. Frequency content and cross-frequency coupling of cortical oscillations are strongly state-dependent, indicating that different patterns of wakefulness or sleep, respectively, support different cognitive or mnestic processes. It is therefore crucial to analyse specific sleep patterns with respect to their oscillations, including interaction between fast and slow rhythms. Here we report the oscillation profile of phasic rapid eye movement (REM), a form of REM sleep which has been implicated in hippocampus-dependent memory processing. In all analysed frequency bands (theta, gamma and fast gamma, respectively) we find higher frequencies and higher power in phasic REM compared to tonic REM or wakefulness. Theta-phase coupling of fast oscillations, however, was highest in tonic REM, followed by phasic REM and wakefulness. Our data suggest different roles of phasic and tonic REM for information processing or memory formation during sleep.