Related Experiment Video
Updated: Oct 18, 2025
07:40
Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
7.8K
Sleep Characteristics and Cognitive Function in Older Adults Without Dementia: The CABLE Study
Yan Fu1, Zuo-Teng Wang2, Yi Qu1
1Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China.
Journal of Alzheimer'S Disease : JAD
|October 4, 2021
Summary
Poor sleep quality and duration are linked to cognitive decline. Alzheimer's disease (AD) pathologies, like tau and amyloid-beta, may mediate this connection, highlighting sleep's role in brain health.
Area of Science:
- Neuroscience
- Gerontology
- Sleep Medicine
Background:
- Sleep disturbances are increasingly recognized as potential contributors to cognitive decline.
- Alzheimer's disease (AD) pathologies, including amyloid-beta (Aβ) and tau proteins, are known to interact with sleep.
- Understanding the intricate relationship between sleep and cognition is crucial for developing preventative strategies.
Purpose of the Study:
- To investigate the associations between various sleep characteristics and cognitive function in a Chinese cohort.
- To examine the extent to which Alzheimer's disease (AD) core pathologies mediate the relationship between sleep duration and cognitive performance.
- To explore both linear and non-linear associations between sleep habits and cognitive outcomes.
Main Methods:
- Utilized data from 974 participants in the Chinese Alzheimer's Biomarker and Lifestyle (CABLE) study.
- Employed linear and non-linear regression analyses to assess sleep-cognition relationships.
- Conducted causal mediation analyses to evaluate the role of cerebrospinal fluid (CSF) biomarkers (Aβ, P-tau, T-tau) in mediating sleep-cognition associations.
Main Results:
- Poorer sleep quality (higher PSQI scores) correlated with lower cognitive function (MoCA scores).
- Long sleep latency, low sleep efficiency, and habitual napping were associated with cognitive impairment.
- U-shaped associations were found between sleep habits (bedtime, nocturnal sleep duration) and cognition.
- Causal mediation analysis revealed that phosphorylated tau (P-tau) and amyloid-beta 42 (Aβ42) mediated the association between sleep duration and cognitive function.
Conclusions:
- Sleep characteristics are significantly associated with cognitive function.
- Sleep habits, including duration and bedtime, exhibit non-linear, U-shaped relationships with cognition.
- Alzheimer's disease core pathologies (P-tau/Aβ42) may partially mediate the detrimental effects of altered sleep duration on cognitive health.
More Related Videos
Related Concept Videos
01:30Cognitive Development During Adulthood
389
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
389
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
239
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
239