Fragmentation of the rest-activity rhythm correlates with age-related cognitive deficits
Publication year
2009Source
Journal of Sleep Research, 18, 1, (2009), pp. 129-135ISSN
Publication type
Article / Letter to editor
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Organization
SW OZ DCC NRP
Journal title
Journal of Sleep Research
Volume
vol. 18
Issue
iss. 1
Page start
p. 129
Page end
p. 135
Subject
DI-BCB_DCC_Theme 3: Plasticity and Memory; Neuropsychology and rehabilitation psychology; Neuro- en revalidatiepsychologieAbstract
Aging affects both cognitive performance and the sleep-wake rhythm. The recent surge of studies that support a role of sleep for cognitive performance in healthy young adults suggests that disturbed sleep-wake rhythms may contribute to 'age-related' cognitive decline. This relationship has however not previously been extensively investigated. The present correlational study integrated a battery of standardized cognitive tests to investigate the association of mental speed, memory, and executive function with actigraphically recorded sleep-wake rhythms in 144 home-dwelling elderly participants aged 69.5 ± 8.5 (mean ± SD). Multiple regression analyses showed that the partial correlations of the fragmentation of the sleep-wake rhythm with each of the three cognitive domains (r = −0.16, −0.19, and −0.16 respectively) were significant. These associations were independent from main effects of age, implying that a unique relationship between the rest-activity rhythm and cognitive performance is present in elderly people.
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- Academic publications [238441]
- Electronic publications [122508]
- Faculty of Social Sciences [29483]
- Open Access publications [97504]
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