Electroencephalogram slowing in rapid eye movement sleep behavior disorder is associated with mild cognitive impairment

Highlights • We studied electroencephalogram (EEG) in rapid eye movement sleep behavior disorder. • Patients were divided according to the presence of mild cognitive impairment (MCI). • Group differences in slow-to-fast frequency ratio and relative power were observed. • Only patients with MCI showe...

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Bibliographic Details
Published in:Sleep medicine 2013-11, Vol.14 (11), p.1059-1063
Main Authors: Rodrigues Brazète, Jessica, Montplaisir, Jacques, Petit, Dominique, Postuma, Ronald B, Bertrand, Josie-Anne, Génier Marchand, Daphné, Gagnon, Jean-François
Format: Article
Language:English
Subjects:
Aged
Cerebral Cortex - physiopathology
Cognitive Dysfunction - complications
Cognitive Dysfunction - physiopathology
Dementia with Lewy bodies
Electroencephalography
Female
Humans
Lewy Body Disease - complications
Lewy Body Disease - physiopathology
Male
Middle Aged
Mild cognitive impairment
Neurology
Parkinson Disease - complications
Parkinson Disease - physiopathology
Parkinson’s disease
Polysomnography
REM sleep behavior disorder
REM Sleep Behavior Disorder - complications
REM Sleep Behavior Disorder - physiopathology
Sleep Medicine
Spectral analysis
Wakefulness - physiology
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Summary:Highlights • We studied electroencephalogram (EEG) in rapid eye movement sleep behavior disorder. • Patients were divided according to the presence of mild cognitive impairment (MCI). • Group differences in slow-to-fast frequency ratio and relative power were observed. • Only patients with MCI showed EEG slowing mainly in the posterior cortical regions. • This EEG pattern might be a potential marker of developing synucleinopathies.
ISSN:1389-9457
1878-5506
DOI:10.1016/j.sleep.2013.06.013