ArticleCureus2025
Association of Poor Sleep Efficiency With Decreased Executive Function and Impaired Episodic Memory in Older Adults.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Association of low sleep efficiency and carotid plaque with cognitive impairment in older adults with chronic diseases: A retrospective cross-sectional study.The Journal of international medical research · 2026Article
- Association Between Sleep Quality and Cognitive Function in Patients with Hypertension in Rural Areas of Shanxi Province, China: The Chain Mediating Role of Anxiety and Depression.Psychology research and behavior management · 2026Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSleep characteristics influence both physical and psychological health. While previous studies have reported links between sleep quality and cognitive impairment in older adults, findings remain inconsistent, and evidence from the Indian population using culturally validated cognitive tools is scarce.
objectiveThis study aims to examine the relationship between subjective sleep quality and cognitive performance in Indian older adults using the Pittsburgh Sleep Quality Index (PSQI) and the Indian Council of Medical Research-Neurocognitive Toolbox (ICMR-NCTB).
methodsIn this cross-sectional study, 67 individuals aged 50-80 years completed the PSQI and the Hindi version of the ICMR-NCTB. Participants were categorized as good (PSQI ≤ 5) or poor (PSQI > 5) sleepers. Cognitive domains assessed included global cognition, language, attention, visuospatial ability, executive function, and episodic memory. Group comparisons and correlation analyses were performed to explore associations between sleep quality and cognitive outcomes.
resultsSleep latency and sleep efficiency were significantly associated with cognitive performance. Longer sleep latency correlated with poorer executive function (Trail Making Test (TMT)-B: r = 0.347, p = 0.006; TMT-(B-A): r = 0.289, p = 0.023) and reduced performance in verbal learning (Verbal Learning Test (VLT) delayed recall: r = -0.183, p = 0.141; delayed recognition: r = -0.284, p = 0.02). Higher sleep efficiency was linked to better executive function and episodic memory. Poor sleepers scored significantly lower on global cognition (Montreal Cognitive Assessment (MoCA), p = 0.047), executive function (TMT-B
conclusionProlonged sleep latency and poor sleep efficiency were associated with deficits in executive function and memory among older adults. These findings underscore the importance of sleep quality in cognitive aging, and the use of a culturally adapted cognitive tool enhances their applicability in low-literacy, non-Western settings.
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