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Precipitating factors of somnambulism: impact of sleep deprivation and forced arousals.
Neurology. 2008 Jun 10; 70(24):2284-90.Neur

Abstract

OBJECTIVE

Experimental attempts to induce sleepwalking with forced arousals during slow-wave sleep (SWS) have yielded mixed results in children and have not been investigated in adult patients. We hypothesized that the combination of sleep deprivation and external stimulation would increase the probability of inducing somnambulistic episodes in sleepwalkers recorded in the sleep laboratory. The main goal of this study was to assess the effects of forced arousals from auditory stimuli (AS) in adult sleepwalkers and control subjects during normal sleep and following post-sleep deprivation recovery sleep.

METHODS

Ten sleepwalkers and 10 controls were investigated. After a baseline night, participants were presented with AS at predetermined sleep stages either during normal sleep or recovery sleep following 25 hours of sleep deprivation. One week later, the conditions with AS were reversed.

RESULTS

No somnambulistic episodes were induced in controls. When compared to the effects of AS during sleepwalkers' normal sleep, the presentation of AS during sleepwalkers' recovery sleep significantly increased their efficacy in experimentally inducing somnambulistic events and a significantly greater proportion of sleepwalkers (100%) experienced at least one induced episode during recovery SWS as compared to normal SWS (30%). There was no significant difference between the mean intensity of AS that induced episodes during sleepwalkers' SWS and the mean intensity of AS that awakened sleepwalkers and controls from SWS.

CONCLUSIONS

Sleep deprivation and forced arousals during slow-wave sleep can induce somnambulistic episodes in predisposed adults. The results highlight the potential value of this protocol in establishing a video-polysomnographically based diagnosis for sleepwalking.

Authors+Show Affiliations

Centre d'Etude du Sommeil, Hôpital du Sacré-Coeur, Department of Psychology, Université de Montréal, Québec, Canada.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18463368

Citation

Pilon, Mathieu, et al. "Precipitating Factors of Somnambulism: Impact of Sleep Deprivation and Forced Arousals." Neurology, vol. 70, no. 24, 2008, pp. 2284-90.
Pilon M, Montplaisir J, Zadra A. Precipitating factors of somnambulism: impact of sleep deprivation and forced arousals. Neurology. 2008;70(24):2284-90.
Pilon, M., Montplaisir, J., & Zadra, A. (2008). Precipitating factors of somnambulism: impact of sleep deprivation and forced arousals. Neurology, 70(24), 2284-90. https://doi.org/10.1212/01.wnl.0000304082.49839.86
Pilon M, Montplaisir J, Zadra A. Precipitating Factors of Somnambulism: Impact of Sleep Deprivation and Forced Arousals. Neurology. 2008 Jun 10;70(24):2284-90. PubMed PMID: 18463368.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Precipitating factors of somnambulism: impact of sleep deprivation and forced arousals. AU - Pilon,Mathieu, AU - Montplaisir,Jacques, AU - Zadra,Antonio, Y1 - 2008/05/07/ PY - 2008/5/9/pubmed PY - 2008/7/3/medline PY - 2008/5/9/entrez SP - 2284 EP - 90 JF - Neurology JO - Neurology VL - 70 IS - 24 N2 - OBJECTIVE: Experimental attempts to induce sleepwalking with forced arousals during slow-wave sleep (SWS) have yielded mixed results in children and have not been investigated in adult patients. We hypothesized that the combination of sleep deprivation and external stimulation would increase the probability of inducing somnambulistic episodes in sleepwalkers recorded in the sleep laboratory. The main goal of this study was to assess the effects of forced arousals from auditory stimuli (AS) in adult sleepwalkers and control subjects during normal sleep and following post-sleep deprivation recovery sleep. METHODS: Ten sleepwalkers and 10 controls were investigated. After a baseline night, participants were presented with AS at predetermined sleep stages either during normal sleep or recovery sleep following 25 hours of sleep deprivation. One week later, the conditions with AS were reversed. RESULTS: No somnambulistic episodes were induced in controls. When compared to the effects of AS during sleepwalkers' normal sleep, the presentation of AS during sleepwalkers' recovery sleep significantly increased their efficacy in experimentally inducing somnambulistic events and a significantly greater proportion of sleepwalkers (100%) experienced at least one induced episode during recovery SWS as compared to normal SWS (30%). There was no significant difference between the mean intensity of AS that induced episodes during sleepwalkers' SWS and the mean intensity of AS that awakened sleepwalkers and controls from SWS. CONCLUSIONS: Sleep deprivation and forced arousals during slow-wave sleep can induce somnambulistic episodes in predisposed adults. The results highlight the potential value of this protocol in establishing a video-polysomnographically based diagnosis for sleepwalking. SN - 1526-632X UR - https://www.unboundmedicine.com/medline/citation/18463368/Precipitating_factors_of_somnambulism:_impact_of_sleep_deprivation_and_forced_arousals_ L2 - http://www.neurology.org/cgi/pmidlookup?view=long&pmid=18463368 DB - PRIME DP - Unbound Medicine ER -