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Sleep. 2001 Aug 1;24(5):591-9.

Does cognitive-behavioral insomnia therapy alter dysfunctional beliefs about sleep?

Author information

  • 1Psychology Service, VA Medical Center, Durham, NC 27705, USA. jack.edinger@duke.edu

Abstract

STUDY OBJECTIVES:

This study was conducted to exam the degree to which cognitive-behavioral insomnia therapy (CBT) reduces dysfunctional beliefs about sleep and to determine if such cognitive changes correlate with sleep improvements.

DESIGN:

The study used a double-blind, placebo-controlled design in which participants were randomized to CBT, progressive muscle relaxation training or a sham behavioral intervention. Each treatment was provided in 6 weekly, 30-60-minute individual therapy sessions.

SETTING:

The sleep disorders center of a large university medical center.

PARTICIPANTS:

Seventy-five individuals (ages 40 to 80 years of age) who met strict criteria for persistent primary sleep-maintenance insomnia were enrolled in this trial.

INTERVENTIONS:

N/A.

MEASUREMENTS AND RESULTS:

Participants completed the Dysfunctional Beliefs and Attitudes About Sleep (DBAS) Scale, as well as other assessment procedures before treatment, shortly after treatment, and at a six-month follow-up. Items composing a factor-analytically derived DBAS short form (DBAS-SF) were then used to compare treatment groups across time points. Results showed CBT produced larger changes on the DBAS-SF than did the other treatments, and these changes endured through the follow-up period. Moreover, these cognitive changes were correlated with improvements noted on both objective and subjective measures of insomnia symptoms, particularly within the CBT group.

CONCLUSIONS:

CBT is effective for reducing dysfunctional beliefs about sleep and such changes are associated with other positive outcomes in insomnia treatment.

PMID:
11480656
[PubMed - indexed for MEDLINE]
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