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Effects of aging on priming and skill learning.
S Hashtroudi1, L D Chrosniak, B L Schwartz
1Department of Psychology, George Washington University, Washington, DC 20052.
Psychology and Aging
|December 1, 1991
Summary
Older adults show deficits in skill learning but not repetition priming, suggesting age-related implicit memory differences. Enhancing perceptual information can mitigate skill learning impairments in aging.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Aging Research
Background:
- Implicit memory, encompassing repetition priming and skill learning, plays a crucial role in cognitive function.
- Aging is associated with various cognitive changes, but its specific impact on different types of implicit memory requires further investigation.
Purpose of the Study:
- To investigate the differential effects of aging on two forms of implicit memory: repetition priming and skill learning.
- To explore the role of perceptual information in age-related differences in implicit memory performance.
Main Methods:
- Comparison of young and older adults' performance on skill learning tasks (e.g., inverted word reading, partial-word identification).
- Assessment of repetition priming across age groups using similar tasks.
- Manipulation of perceptual information load to examine its effect on skill learning in older adults.
Main Results:
- Older adults exhibited significantly less skill learning compared to young adults.
- Repetition priming performance did not differ between age groups.
- Increasing perceptual information eliminated the age deficit in skill learning, while priming remained unaffected.
Conclusions:
- Skill learning is particularly vulnerable to aging under data-limited conditions, unlike repetition priming.
- The age-related deficit in skill learning may stem from impaired perceptual organization and reorganization abilities.
- Implicit memory systems show differential sensitivity to the aging process.