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Sleep. 2000 Sep 15;23(6):755-60.

Dynamics of slow-wave activity during the NREM sleep of sleepwalkers and control subjects.

Author information

  • 1Centre d 'étude du sommeil, Hôpital du Sacré-Caéur de Montréal, Québec.

Erratum in

  • Sleep 2000 Nov 1;23(7):858.

Abstract

STUDY OBJECTIVE:

To compare the number and distribution of awakenings from slow-wave sleep (SWS) and both the power and dynamics of EEG slow-wave activity (SWA) in sleepwalkers and controls. Somnambulism is considered to be a disorder of arousal from NREM sleep and related to anomalous SWS and SWA. Power spectral analyses have never been used to quantify patients' SWA across sleep cycles.

DESIGN:

N/A SETTING: N/A PATIENTS: A polysomnographic study was performed on 15 adult sleepwalkers and 15 age- and sex-matched controls.

INTERVENTIONS:

N/A MEASUREMENTS & RESULTS: Sleepwalkers had a significantly greater number of awakenings from SWS than did control subjects. Controls showed a greater decrease in SWA across NREM cycles. Sleepwalkers had a significantly lower level of SWA during the first NREM period, where most awakenings take place.

CONCLUSION:

Sleepwalkers appear to suffer from an abnormality in the neural mechanisms responsible for the regulation of SWS.

PMID:
11007442
[PubMed - indexed for MEDLINE]
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