Brain neural patterns and the memory function of sleep

Autor: Gabrielle Girardeau, Vítor Lopes-dos-Santos
Přispěvatelé: Institut du Fer à Moulin (IFM - Inserm U1270 - SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Nuffield Department of Clinical Neurosciences [Oxford], University of Oxford, Gestionnaire, Hal Sorbonne Université
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Science
Science, 2021, 374 (6567), pp.560-564. ⟨10.1126/science.abi8370⟩
Science (New York, N.Y.)
ISSN: 0036-8075
1095-9203
DOI: 10.1126/science.abi8370⟩
Popis: Sleep is crucial for healthy cognition, including memory. The two main phases of sleep, REM (rapid eye movement) and non-REM sleep, are associated with characteristic electrophysiological patterns that are recorded using surface and intracranial electrodes. These patterns include sharp-wave ripples, cortical slow oscillations, delta waves, and spindles during non-REM sleep and theta oscillations during REM sleep. They reflect the precisely timed activity of underlying neural circuits. Here, we review how these electrical signatures have been guiding our understanding of the circuits and processes sustaining memory consolidation during sleep, focusing on hippocampal theta oscillations and sharp-wave ripples and how they coordinate with cortical patterns. Finally, we highlight how these brain patterns could also sustain sleep-dependent homeostatic processes and evoke several potential future directions for research on the memory function of sleep.
[Figure: see text].
Databáze: OpenAIRE