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- Title
The Interactive Role of Sleep and Circadian Rhythms in Episodic Memory in Older Adults.
- Authors
Carlson, Elyse J; Wilckens, Kristine A; Wheeler, Mark E
- Abstract
Adequate sleep is essential for healthy physical, emotional, and cognitive functioning, including memory. However, sleep ability worsens with increasing age. Older adults on average have shorter sleep durations and more disrupted sleep compared with younger adults. Age-related sleep changes are thought to contribute to age-related deficits in episodic memory. Nonetheless, the nature of the relationship between sleep and episodic memory deficits in older adults is still unclear. Further complicating this relationship are age-related changes in circadian rhythms such as the shift in chronotype toward morningness and decreased circadian stability, which may influence memory abilities as well. Most sleep and cognitive aging studies do not account for circadian factors, making it unclear whether age-related and sleep-related episodic memory deficits are partly driven by interactions with circadian rhythms. This review will focus on age-related changes in sleep and circadian rhythms and evidence that these factors interact to affect episodic memory, specifically encoding and retrieval. Open questions, methodological considerations, and clinical implications for diagnosis and monitoring of age-related memory impairments are discussed.
- Subjects
EPISODIC memory; OLDER people; CIRCADIAN rhythms; SLEEP duration; COGNITIVE aging; SLEEP
- Publication
Journals of Gerontology Series A: Biological Sciences & Medical Sciences, 2023, Vol 78, Issue 10, p1844
- ISSN
1079-5006
- Publication type
Article
- DOI
10.1093/gerona/glad112