Currently accepted at: JMIR Aging
Date Submitted: Jun 18, 2018
Open Peer Review Period: Jun 21, 2018 - Aug 16, 2018
Date Accepted: Oct 30, 2018
(closed for review but you can still tweet)
Using Actigraphy to Predict Ecological Momentary Assessment of Cognition, Mood, and Fatigue in Older Adulthood
Quality of sleep has been associated with cognitive and mood outcomes in otherwise healthy older adults. However, most studies have evaluated sleep quality as aggregate and/or mean measures, rather than addressing the impact of previous nightâ€™s sleep on next-day functioning.
This study evaluated the ability of previous nightâ€™s sleep parameters on self-reported mood, cognition, and fatigue to understand short-term impacts of sleep quality on next-day functioning.
Seventy-three cognitively-healthy older adults (19 male, 54 female) completed seven days of phone-based self-report questions, along with 24-hour actigraph data collection. We evaluated a model of previous nightâ€™s sleep parameters as predictors of mood, fatigue, and perceived thinking abilities the following day.
Previous nightâ€™s sleep predicted fatigue in the morning and mid-day, as well as sleepy/drowsiness in the morning; however, sleep measures did not predict subjective report of mood or perceived thinking abilities the following day.
These findings suggest that objectively-measured sleep quality from the previous night may not have a direct or substantial relationship with subjective reporting of cognition or mood the following day, despite frequent patient reports. Continued efforts to examine the relationship between cognition, sleep, and everyday functioning are encouraged.
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