Bedtime regularity predicts positive affect among veterans with posttraumatic stress disorder: an ecological momentary assessment study

被引:0
|
作者
Song, Jiyoung [1 ]
Fisher, Aaron J. [1 ]
Woodward, Steven H. [2 ]
机构
[1] Univ Calif Berkeley, Dept Psychol, 2121 Berkeley Way, Berkeley, CA 94720 USA
[2] Natl Ctr PTSD, Disseminat & Training Div, 795 Willow Rd, Menlo Pk, CA 94025 USA
关键词
Sleep; PTSD; Affect; Experience sampling; Actigraphy; SLEEP DISTURBANCE; NEGATIVE AFFECT; PSYCHOMETRIC PROPERTIES; BEHAVIORAL-THERAPY; SUBJECTIVE SLEEP; VARIABILITY; PTSD; INSOMNIA; DEPRESSION; ASSOCIATIONS;
D O I
10.1186/s12888-023-05373-9
中图分类号
R749 [精神病学];
学科分类号
100205 ;
摘要
BackgroundRegularizing bedtime and out-of-bed times is a core component of behavioral treatments for sleep disturbances common among patients with posttraumatic stress disorder (PTSD). Although improvements in subjective sleep complaints often accompany improvements in PTSD symptoms, the underlying mechanism for this relationship remains unclear. Given that night-to-night sleep variability is a predictor of physical and mental well-being, the present study sought to evaluate the effects of bedtime and out-of-bed time variability on daytime affect and explore the optimal window lengths of over which variability is calculated.MethodsFor about 30 days, male U.S. military veterans with PTSD (N = 64) in a residential treatment program provided ecological momentary assessment data on their affect and slept on beds equipped with mattress actigraphy. We computed bedtime and out-of-bed time variability indices with varying windows of days. We then constructed multilevel models to account for the nested structure of our data and evaluate the impact of bedtime and out-of-bed time variability on daytime affect.ResultsMore regular bedtime across 6-9 days was associated with greater subsequent positive affect. No similar effects were observed between out-of-bed time variability and affect.ConclusionsMultiple facets of sleep have been shown to differently predict daily affect, and bedtime regularity might represent one of such indices associated with positive, but not negative, affect. A better understanding of such differential effects of facets of sleep on affect will help further elucidate the complex and intertwined relationship between sleep and psychopathology.Trial registrationThe trial retrospectively was registered on the Defense Technical Information Center website: Award # W81XWH-15-2-0005.
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页数:12
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