title: NREM Sleep Oscillations and Brain Plasticity in Aging.
abstract: The human electroencephalogram (EEG) during non-rapid eye movement sleep (NREM) is characterized mainly by high-amplitude (>75 μV), slow-frequency (<4 Hz) waves (slow waves), and sleep spindles (∼11-15 Hz; >0.25 s). These NREM oscillations play a crucial role in brain plasticity, and importantly, NREM sleep oscillations change considerably with aging. This review discusses the association between NREM sleep oscillations and cerebral plasticity as well as the functional impact of age-related changes on NREM sleep oscillations. We propose that age-related reduction in sleep-dependent memory consolidation may be due in part to changes in NREM sleep oscillations.
authors.affiliation: Department of Psychology, Université de Montréal Montréal, QC, Canada ; Functional Neuroimaging Unit, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal Montréal, QC, Canada.
authors.forename: Stuart
authors.initials: S
authors.lastname: Fogel
authors.forename: Nicolas
authors.initials: N
authors.lastname: Martin
authors.forename: Marjolaine
authors.initials: M
authors.lastname: Lafortune
authors.forename: Marc
authors.initials: M
authors.lastname: Barakat
authors.forename: Karen
authors.initials: K
authors.lastname: Debas
authors.forename: Samuel
authors.initials: S
authors.lastname: Laventure
authors.forename: Véronique
authors.initials: V
authors.lastname: Latreille
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Gagnon
authors.forename: Julien
authors.initials: J
authors.lastname: Doyon
authors.forename: Julie
authors.initials: J
authors.lastname: Carrier