The effect of age on task switching: updated and extended meta-analyses
En-Ho Chen1, Shulan Hsieh2,3,4
1Cognitive Electrophysiology Laboratory: Control, Aging, Sleep, and Emotion (CASE), Department of Psychology, National Cheng Kung University, Tainan, Taiwan.
Psychological Research
|February 2, 2023
Summary
Healthy aging does not impair cognitive flexibility, but older adults are slower. Further research is needed to refine task-switching paradigms for accurate assessment of cognitive function in aging.
Area of Science:
- Cognitive neuroscience
- Developmental psychology
- Gerontology
Background:
- Cognitive flexibility is vital for adapting to changing environments.
- The impact of healthy aging on cognitive flexibility remains unclear due to mixed research findings.
- Task-switching paradigms are used to study cognitive flexibility in laboratory settings.
Approach:
- Utilized meta-analysis techniques, including Brinley and State-trace plots, to synthesize existing research on cognitive flexibility and aging.
- Re-evaluated the influence of healthy aging on cognitive flexibility by combining data from multiple studies.
- Assessed switch-specific age-related impairments using local switch cost.
Key Points:
- Brinley plot analysis revealed no evidence of switch-specific age-related impairment in cognitive flexibility.
- Older adults demonstrated slower performance across all task conditions compared to younger adults.
- Conventional meta-analysis indicated significant heterogeneity and publication bias in existing studies.
Conclusions:
- Current task-switching paradigms may not be sensitive enough to accurately measure cognitive flexibility in older adults.
- Researchers should exercise caution when interpreting findings from task-switching studies on aging.
- Future research should explore additional parametric variables to enhance the precision of task-switching paradigms for assessing aging cognition.
