Journal
JOURNAL OF HEALTH PSYCHOLOGY
Volume 15, Issue 4, Pages 596-607Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1359105309355336
Keywords
actigraphy; chronic fatigue syndrome; polysomnography; sleep; sleep diary
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The goal was to examine comparative efficacy of polysomnography, actigraphy, and self-report in evaluating the sleep/wake experience of individuals with chronic fatigue syndrome (CFS). Sleep parameters were evaluated by the three measurement modalities for the same night in 49 participants with CFS. Psychological and daytime functioning were measured by self-report. Results indicate that: (a) objectively measured nocturnal sleep time effectively approximated subjective experience although nocturnal wakefulness did not; (b) total sleep time and sleep efficiency differentiated individuals with and without insomnia complaints; (c) daytime sleepiness, fatigue, and non-refreshing sleep were not reflected by the objective sleep-related measures (polysomnography and actigraphy).
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