Hyperarousal, sleep scheduling, and time awake in bed as mediators of outcome in computerized cognitive-behavioral therapy (cCBT) for insomnia.
This study investigated the relationship between hyperarousal, sleep scheduling, and time awake in bed in a secondary data analysis. Participants were 89 adults with chronic insomnia previously involved in a randomized controlled trial of 5 weeks of computerized cognitive behavioral therapy (cCBT). At measurement periods, participants completed the Pre-Sleep Arousal Scale, 7 days of sleep diaries, and the Insomnia Severity Index. Measures were re-administered at a 4 week follow-up. Results showed that improvements in hyperarousal and time awake in bed partially mediated the impact of cCBT on sleep at follow-up but that improvements in sleep schedule consistency did not. Of these mediators, pre-sleep arousal is more significant in explaining change associated with cCBT for insomnia.
Department of Clinical Health Psychology, University of Manitoba, PZ-350 Psychealth Center, 771 Bannatyne Avenue, Winnipeg, Manitoba, Canada R3E 3N4. NVincent@exchange.hsc.mb.ca
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Vincent
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Walsh
D000328:Adult; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D016032:Randomized Controlled Trials as Topic; D012890:Sleep; D007319:Sleep Initiation and Maintenance Disorders / Q000628:therapy*; D013813:Therapy, Computer-Assisted / Q000379:methods*; D013997:Time Factors; D016896:Treatment Outcome