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Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach

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Published on: February 14, 2014

Longitudinal relationships between subjective fatigue, cognitive function, and everyday functioning in old age.

Feng Lin¹, Ding-Geng Chen, David E Vance

¹School of Nursing, University of Rochester Medical Center, Rochester, NY 14642, USA. vankee_lin@urmc.rochester.edu

International Psychogeriatrics

|October 23, 2012

Summary

This summary is machine-generated.

Subjective fatigue impacts cognitive and everyday functioning in older adults. Interventions targeting fatigue are crucial for maintaining cognitive and functional abilities in this population.

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Area of Science:

Gerontology
Cognitive Neuroscience
Public Health

Background:

Investigated prospective relationships between subjective fatigue, cognitive function, and everyday functioning in older adults.
Utilized data from 2,781 community-dwelling older adults without dementia from the ACTIVE trial.

Purpose of the Study:

To examine how subjective fatigue relates to cognitive and everyday functioning over time.
To identify distinct patterns of subjective fatigue and their association with cognitive and functional decline.

Main Methods:

Cohort study with secondary data analysis over five years.
Assessed subjective fatigue, cognitive function (speed of processing, memory, reasoning), and everyday functioning (speed, problem-solving) annually.
Employed growth mixture modeling to identify distinct classes of subjective fatigue.

Main Results:

Identified four classes of subjective fatigue: increased, persistent, decreased, and persistent energy.
All cognitive and everyday functioning domains declined significantly over five years.
Decline rates, not baseline levels, differed by fatigue class, with significant associations between fatigue decline and cognitive/functional decline in most classes.

Conclusions:

Subjective fatigue is a significant factor in cognitive and functional trajectories in older adults.
Interventions addressing subjective fatigue are recommended for managing cognitive and functional abilities.
Future research should focus on the interplay between fatigue and cognitive aging.