title: Non-rapid eye movement sleep characteristics in idiopathic REM sleep behavior disorder.
abstract: This study investigated slow waves (SW; >75μV and <4Hz) characteristics in patients with idiopathic rapid eye movement (REM) sleep behavior disorder (iRBD). Thirty patients with iRBD and 30 age- and sex-matched healthy subjects underwent one polysomnographic (PSG) nocturnal sleep recording. SW automatic detection was performed on F3, C3, P3, and O1 leads and SW characteristics were derived (SW density, amplitude, frequency, slope, and duration of negative and positive phases). We also compared iRBD patients and control subjects on PSG variables and delta (0.25-4.0Hz) spectral power. No between-group differences were found on PSG variables, delta spectral power, or SW characteristics. Results show no SW abnormalities in iRBD patients compared to healthy participants, which suggests similar level of synchronization of thalamo-cortical neurons during N-REM sleep.
authors.affiliation: Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Quebec, Canada.
authors.forename: Véronique
authors.initials: V
authors.lastname: Latreille
authors.forename: Julie
authors.initials: J
authors.lastname: Carrier
authors.forename: Jacques
authors.initials: J
authors.lastname: Montplaisir
authors.forename: Marjolaine
authors.initials: M
authors.lastname: Lafortune
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Gagnon
mesh_terms: D000368:Aged; D000465:Algorithms; D000704:Analysis of Variance; D058256:Brain Waves / Q000502:physiology*; D004569:Electroencephalography; D004576:Electromyography; D005260:Female; D005583:Fourier Analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D020187:REM Sleep Behavior Disorder / Q000503:physiopathology*; D012894:Sleep Stages / Q000502:physiology*