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Age deficits in retrieval: the fan effect.
Journal of Gerontology
|July 1, 1991
Summary
Older adults experience greater memory interference than younger adults, impacting retrieval accuracy. This suggests an age-related decline in filtering irrelevant information from working memory.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Development
Background:
- The fan effect paradigm measures retrieval interference.
- Age-related cognitive changes impact memory retrieval.
- Working memory efficiency may decline with age.
Purpose of the Study:
- To investigate age-related differences in retrieval interference.
- To examine how varying interference levels affect memory recall in younger and older adults.
- To test the hypothesis of age-related decline in irrelevant information filtering.
Main Methods:
- Participants learned "facts" with varying interference levels (fan levels 1, 2, or 3).
- A speeded recognition test assessed recall accuracy and response time.
- Foils were created by recombining learned concepts.
Main Results:
- Both age groups showed increased response times and errors with higher fan levels.
- Older adults exhibited significantly larger interference effects compared to younger adults.
- This indicates a greater susceptibility to interference in older adults during retrieval.
Conclusions:
- Older adults show increased interference effects in memory retrieval.
- Findings support theories of age-related decline in working memory filtering.
- Implications for discourse processing and other age-sensitive cognitive tasks.