ASSOCIATIONS OF MEAN AND VARIABILITY OF ACTIGRAPHIC SLEEP AND GENERAL COGNITIVE PERFORMANCE
2024
Sleep and Cognitive Performance in Older Adults
Sample size: 81
publication
Evidence: moderate
Author Information
Author(s): Ji Linying, Shen Yuqi, Buxton Orfeu, Beydoun May, Zonderman Alan, Evans Michele, Gamaldo Alyssa
Hypothesis
The study investigates the relationship between cognitive performance and both variability and mean sleep measures in midlife and older adults.
Conclusion
More variability in sleep timing and longer mean nap minutes are linked to worse cognitive performance in older adults.
Supporting Evidence
- The study found that variability in sleep timing negatively impacts cognitive performance.
- Longer mean nap minutes were associated with lower scores on the cognitive assessment.
Takeaway
If older adults have inconsistent sleep times and take longer naps, they might not think as clearly.
Methodology
The study used wrist actigraphy to measure sleep and the Montreal Cognitive Assessment to evaluate cognitive function.
Participant Demographics
72% female, 52% Black adults, age range: 46-81
Statistical Information
P-Value
0.006
Confidence Interval
[-6.52, -0.93]
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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