Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Cognitive Development During Adulthood

Cognitive Development During Adulthood

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,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

An Efficient Two-Dimensional Functional Mixed-Effect Model Framework for Repeatedly Measured Functional Data.

Statistics in medicine·2025

Same author

Towards proactively improving sleep: machine learning and wearable device data forecast sleep efficiency 4-8 hours before sleep onset.

Sleep·2025

Same author

Effects of combining positive psychological intervention and lifestyle intervention on improving cardiovascular health for at-risk older adults: study protocol of a Chinese multicentric community-based randomised controlled trial (ACCOMPLI-CH).

BMJ open·2025

Same author

Predicting poor performance on cognitive tests among older adults using wearable device data and machine learning: a feasibility study.

npj aging·2024

Same author

A tendency toward evening chronotype associates with less healthy diet among preschoolers: cross-sectional findings from the DAGIS study.

Sleep advances : a journal of the Sleep Research Society·2024

Same author

Identifying Predictive Risk Factors for Future Cognitive Impairment Among Chinese Older Adults: Longitudinal Prediction Study.

JMIR aging·2024

Search research articles

Related Experiment Video

Updated: Jun 28, 2025

Multi-Modal Home Sleep Monitoring in Older Adults

Multi-Modal Home Sleep Monitoring in Older Adults

Published on: January 26, 2019

Association Between Sleep Efficiency Variability and Cognition Among Older Adults: Cross-Sectional Accelerometer

Collin Sakal¹, Tingyou Li¹, Juan Li²

¹School of Data Science, City University of Hong Kong, Hong Kong, China (Hong Kong).

|April 10, 2024

Summary

Inconsistent sleep quality negatively impacts cognitive function in older adults. Maintaining stable sleep efficiency is crucial for preserving cognitive abilities like memory and processing speed.

Keywords:

mobile health accelerometer actigraphy aging cognition cognitive impairments digital health efficiency elder elderly geriatrics gerontology machine learning mhealth older adult older adults older person quality of sleep sleep sleep efficiency sleep quality variability

More Related Videos

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data

Published on: July 27, 2018

Related Experiment Videos

Last Updated: Jun 28, 2025

Multi-Modal Home Sleep Monitoring in Older Adults

Multi-Modal Home Sleep Monitoring in Older Adults

Published on: January 26, 2019

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data

Published on: July 27, 2018

Area of Science:

Gerontology
Sleep Science
Cognitive Neuroscience

Background:

Sleep efficiency is a key indicator of sleep quality.
High-quality sleep is linked to better cognitive function in older adults.
The impact of day-to-day sleep quality variability on cognition remains unclear.

Purpose of the Study:

To investigate the association between sleep efficiency variability and cognitive function in adults over 65.
To utilize accelerometer data and cognitive tests to assess this relationship.

Main Methods:

1074 older adults (aged >65) from NHANES with >=5 days of accelerometer data were analyzed.
Sleep efficiency was calculated using a machine learning algorithm.
Associations between sleep efficiency variability and cognitive tests (DSST, CERAD-WL, AFT) were adjusted for numerous health and demographic factors.

Main Results:

Greater sleep efficiency variability was associated with poorer performance on the Digit Symbol Substitution Test (DSST) and Animal Fluency Test (AFT) after adjustments.
Higher average sleep efficiency correlated with better scores on DSST and AFT.
No significant association was found between sleep efficiency variability and the Consortium to Establish a Registry for Alzheimer's Disease Word-Learning subtest (CERAD-WL).

Conclusions:

Sleep efficiency variability is linked to diminished cognitive function in older adults.
Interventions aimed at improving sleep consistency may help preserve cognitive function.
Further research is needed to understand the nuances of sleep variability and cognitive health.