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Influence of stimulus repetition on negative priming
1Department of Psychology, University of Illinois at Urbana-Champaign, Illinois 61801, USA. akramer@s.psych.uiuc.edu
Psychology and Aging
|January 5, 2002
Summary
Stimulus repetition impacts negative and positive priming similarly across age groups. This suggests age-invariant identity-based inhibition, showing older adults can inhibit irrelevant information as effectively as younger adults.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Development
Background:
- Stimulus repetition influences cognitive processes like priming.
- Understanding age-related differences in cognitive inhibition is crucial for healthy aging research.
- Previous research has yielded mixed results on age effects in inhibitory control.
Purpose of the Study:
- To investigate potential age-related differences in how stimulus repetition affects negative and positive priming.
- To determine if inhibitory mechanisms related to stimulus identity are preserved in older adults.
Main Methods:
- A same-different picture comparison task was used.
- Participants included 48 young adults and 48 old adults.
- Stimuli involved familiar objects presented as target and distractor images.
Main Results:
- Negative priming effects increased with stimulus repetition for both age groups.
- Positive priming effects decreased with stimulus repetition for both age groups.
- The magnitude of these priming effects showed similar patterns in young and old adults.
Conclusions:
- Identity-based inhibition develops similarly from young to old adulthood.
- Cognitive inhibition of task-irrelevant information based on stimulus identity appears to be age-invariant.
- These findings contribute to understanding cognitive aging and the maintenance of inhibitory functions.