Journal article
Sleep disruption explains age-related prospective memory deficits: Implications for cognitive aging and intervention
Aging, Neuropsychology, and Cognition, Vol.26(4), pp.621-636
2018
Abstract
The high prevalence of sleep disruption among older adults may have implications for cognitive aging, particularly for higher-order aspects of cognition. One domain where sleep disruption may contribute to age-related deficits is prospective memory—the ability to remember to perform deferred actions at the appropriate time in the future. Community-dwelling older adults (55–93 years, N = 133) undertook assessment of sleep using actigraphy and participated in a laboratory-based prospective memory task. After controlling for education, sleep disruption (longer awakenings) was associated with poorer prospective memory. Additionally, longer awakenings mediated the relationship between older age and poorer prospective memory. Other metrics of sleep disruption, including sleep efficiency and wake after sleep onset, were not related to prospective memory, suggesting that examining the features of individual wake episodes rather than total wake time may help clarify relationships between sleep and cognition. The mediating role of awakening length was partially a function of greater depression and poorer executive function (shifting) but not retrospective memory. This study is among the first to examine the association between objectively measured sleep and prospective memory in older adults. Furthermore, this study is novel in suggesting sleep disruption might contribute to age-related prospective memory deficits; perhaps, with implications for cognitive aging more broadly. Our results suggest that there may be opportunities to prevent prospective memory decline by treating sleep problems.
Details
- Title
- Sleep disruption explains age-related prospective memory deficits: Implications for cognitive aging and intervention
- Authors/Creators
- L. Fine (Author/Creator) - The University of Western AustraliaM. Weinborn (Author/Creator) - The University of Western AustraliaA. Ng (Author/Creator) - The University of Western AustraliaS. Loft (Author/Creator) - The University of Western AustraliaY.R. Li (Author/Creator) - The University of Western AustraliaE. Hodgson (Author/Creator) - The University of Western AustraliaD. Parker (Author/Creator) - The University of Western AustraliaS. Rainey-Smith (Author/Creator)H.R. Sohrabi (Author/Creator) - Edith Cowan UniversityB. Brown (Author/Creator) - Murdoch UniversityR. Martins (Author/Creator) - Department of Biomedical SciencesR.S. Bucks (Author/Creator) - The University of Western Australia
- Publication Details
- Aging, Neuropsychology, and Cognition, Vol.26(4), pp.621-636
- Publisher
- Routledge
- Identifiers
- 991005544228707891
- Copyright
- © 2018 Informa UK Limited, trading as Taylor & Francis Group
- Murdoch Affiliation
- School of Psychology and Exercise Science
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.137 Sleep Science & Circadian Systems
- 1.137.349 Insomnia
- Web Of Science research areas
- Psychology, Developmental
- Psychology, Experimental
- ESI research areas
- Psychiatry/Psychology