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Related Experiment Video

Updated: Jun 19, 2026

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
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Agreement between self-report and device-measured sedentary behavior varies with cognitive function.

Zhen Yang1, Joanna E Moodie2, Philippa M Dall3

  • 1Department of Movement Sciences, KU Leuven.

Psychology and Aging
|February 23, 2026
PubMed
Summary
This summary is machine-generated.

Cognitive function impacts how accurately older adults report sedentary behavior. Poorer cognitive function correlates with greater discrepancies between self-reported and device-measured sedentary time.

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Area of Science:

  • Gerontology
  • Cognitive Science
  • Public Health

Background:

  • Sedentary behavior is a key lifestyle factor for older adult health.
  • Discrepancies exist between self-report and device-based sedentary behavior measures.
  • Cognitive function's role in these discrepancies is not fully understood.

Purpose of the Study:

  • To investigate the association between cognitive function and agreement between self-report and device-measured sedentary behavior in older adults.
  • To determine if cognitive abilities influence the accuracy of self-reported sedentary time.

Main Methods:

  • Secondary analysis of 257 participants (mean age 78.9 years) from the Lothian Birth Cohort 1936.
  • Assessed cognitive function using 13 tests across multiple domains (general, crystallized, visuospatial, memory, processing speed).
  • Measured sedentary behavior via self-report questionnaire and activPAL accelerometers.

Main Results:

  • Agreement between self-report and accelerometer-measured sedentary behavior was weak.
  • Poorer general cognitive function and domain-specific cognitive abilities were associated with poorer agreement.
  • Higher cognitive function predicted better agreement between the two measurement methods.

Conclusions:

  • Cognitive function may influence the accuracy of self-reported sedentary behavior in older adults.
  • Findings highlight the importance of considering cognitive status when measuring sedentary behavior in aging populations.
  • Future research should explore interventions to improve self-report accuracy considering cognitive factors.