Cited by 94Sleep and related disordersDementia and Cognitive Impairment ResearchSleep and Work-Related Fatigue

Does subjective sleep affect cognitive function in healthy elderly subjects? The Proof cohort

Saint Martin, Magali, Sforza, Emilia, Barthélémy, Jean Claude, Thomas-Anterion, Catherine, Roche, Frédéric·2012·Sleep Medicine

Abstract

Objective Some epidemiological data are available on the association between sleep duration and sleep quality, sleep complaints, and the aging related cognitive impairment in the elderly. In this study we examined a large sample of healthy elderly subjects to assess the relationship between sleep quality, subjective cognitive complaints, and neuropsychological performance.Methods A total of 272 elderly subjects (mean age 74.8 ± 1.1 years) were recruited from a population-based cross-sectional study on aging and cardiovascular morbidity. All subjects filled in self-assessment questionnaires evaluating cognitive function, anxiety, depression, sleep-related parameters, and the Pittsburgh Sleep Quality Index (PSQI). Ambulatory polygraphy and extensive neuropsychological tests were also performed. Based on the total PSQI score, subjects were classified as good sleepers (GS, PSQI<5, n=116) and poor sleepers (PS, PSQI≥5, n=156).Results Poor sleep did not affect the subjective cognitive function score, subjective cognitive impairment being mainly related to anxiety, depression, and sleep medication intake. No significant differences were seen between GS and PS in any of the objective cognitive function tests except for the Trail Making Test A (TMA-A), processing speed being longer in the PS group (p<0.001). Neither the presence of sleep-related breathing disorders nor gender affected cognitive performance.Conclusions Our results suggest that in healthy elderly subjects, subjective sleep quality and duration did not significantly affect subjective and objective cognitive performances, except the attention level, for that the interference of sleep medication should be considered.

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Crossref · 10.1016/j.sleep.2012.06.021

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  • Reduced sleep duration has been shown to cause impairments in working memory, executive function, processing speed, and cognitive throughput.

    “For example, reduced sleep duration has been shown to cause impairments in working memory,91 executive function,92 processing speed,93–95 and cognitive throughput.96”

    From Sleep, Health, and Society (2017) · cites this paper as [94]

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Authors
Saint Martin, M., Sforza, E., Barthélémy, J. C., Thomas-Anterion, C., & Roche, F.
Affiliations
Centre Hospitalier Universitaire de Saint-Étienne (FR)
Venue
Sleep Medicine
Publisher
Elsevier BV
Published
2012-10
Volume
13
Issue
9
Pages
1146-1152
ISSN
1389-9457 (ISSN-L)
OpenAlex
W1994585772
Cited by
94
References
57
Citations by year
2026: 3 · 2025: 5 · 2024: 9 · 2023: 5 · 2022: 10 · 2021: 3 · 2020: 14 · 2019: 8 · 2018: 2 · 2017: 7 · 2016: 10 · 2015: 9 · 2014: 5 · 2013: 3 · 2012: 1
FWCI
7.71
Type
journal article
Language
en
Open access
closed
Locations
  • Sleep Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • French Ministery of Health
  • L’Association de Recherche SYNAPSE
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
sleep quality, subjective sleep complaints, cognitive function, healthy older adults, aging, Pittsburgh Sleep Quality Index, sleep duration, sleep medication, anxiety, depression, processing speed, attention, sleep-disordered breathing, objective cognitive performance
MeSH terms
Aged, Anxiety, Cognition, Cognition Disorders, Cross-Sectional Studies, Depression, Female, Humans, Male, Neuropsychological Tests, Surveys and Questionnaires, Sex Factors, Sleep, Sleep Wake Disorders, Polysomnography

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