Within- and between-person associations of sleep characteristics with daily cognitive performance in a community-based sample of older adults
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Le résumé fourni par la source
OBJECTIVES: Few studies have examined daily effects of sleep on cognition. This analysis examined both between-person and within-person associations of actigraphic sleep with daily cognitive performance ascertained via ecological momentary assessments. METHODS: Data are from community-residing, dementia-free older adults in the Einstein Aging Study (mean age 77.2 ± 4.7, 67.3% female, 47% non-Hispanic White, and 40% non-Hispanic Black) who were free of dementia. Over 16 days, participants wore wrist actigraphs and completed cognitive assessments six times daily using study-provided smartphones and completed overnight pulse oximetry. Brief cognitive tasks assessed four domains of cognitive function. Multilevel linear mixed-effect models assessed associations of sleep characteristics with cognitive performance. Data were aligned such that models addressed the relationship between a day's sleep parameters and the next day's cognitive performance, adjusted for demographics, depression, cardiovascular comorbidity, and sleep-disordered breathing. RESULTS: In adjusted models, between-person associations showed that higher average wake after sleep onset (WASO) was associated with slower average processing speed, worse working memory, and worse visual memory binding. Within-person effects showed that an individual's processing speed was slower than usual on days following a night with greater-than-usual WASO. Sleep duration, timing, or naps were not associated with any of the cognitive tests. CONCLUSIONS: Using ambulatory assessments in real-world environments, the results demonstrate short-term effects of sleep fragmentation (WASO) on processing speed the next day in dementia-free older adults. Better understanding short-term effects might identify individuals who may benefit from early interventions to prevent long-term cognitive decline.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Within- and between-person associations of sleep characteristics with daily cognitive performance in a community-based sample of older adults
- Date Crossref
- 01/04/2026
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Pennsylvania State University Department of Biobehavioral Health pays non établi dans la noticeUniversité ou école supérieure
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Albert Einstein College of Medicine Department of Epidemiology & Population Health pays non établi dans la noticeUniversité ou école supérieure
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Montana State University Department of Psychology pays non établi dans la noticeUniversité ou école supérieure
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Clemson University Department of Psychology pays non établi dans la noticeUniversité ou école supérieure
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Brigham and Women's Hospital Department of Medicine pays non établi dans la noticeÉtablissement de santé
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Harvard University pays non établi dans la noticeUniversité ou école supérieure
Department of Biobehavioral Health — Pennsylvania State University, Department of Epidemiology & Population Health — Albert Einstein College of Medicine et Department of Psychology — Montana State University, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.