Journal
BEHAVIOUR RESEARCH AND THERAPY
Volume 51, Issue 3, Pages 161-166Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.brat.2012.12.003
Keywords
Computerized cognitive behavioral therapy; Online treatment; Insomnia disorder; Adult health
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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. (C) 2013 Elsevier Ltd. All rights reserved.
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