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Prolonged disengagement from attentional capture in normal aging
Nathan Cashdollar1, Keisuke Fukuda, Angelika Bocklage
1Department of Neurology, University of California, San Francisco, MC 0444, 675 Nelson Rising Lane, Room 511C, San Francisco, CA 94158, USA.
Psychology and Aging
|October 17, 2012
Summary
Older adults experience prolonged distraction effects due to slower processing, not increased attentional capture. This impacts cognitive performance, highlighting aging-related changes in distractor processing and visual working memory.
Area of Science:
- Cognitive Psychology
- Neuroscience of Aging
- Human Perception
Background:
- Older adults often show reduced cognitive performance when exposed to irrelevant information.
- Aging may alter susceptibility to attentional capture or the ability to disengage from distractors.
Purpose of the Study:
- To investigate how aging affects attentional capture by distractors and the subsequent disengagement process.
- To determine if prolonged distraction effects in older adults stem from initial capture or sustained processing.
Main Methods:
- A psychophysical approach was employed to assess distractor processing in younger and older adults.
- Evaluated susceptibility to attentional capture and the time course of disengagement from distractors.
Main Results:
- Both age groups showed similar initial susceptibility to attentional capture.
- Older adults demonstrated a significantly longer duration for the negative effects of attentional capture to resolve.
- Disengagement timing in older adults correlated with visual working memory capacity.
Conclusions:
- The heightened impact of distractors in older adults is attributed to prolonged processing of irrelevant information, not increased initial capture.
- Aging affects the temporal dynamics of distractor processing, impacting perceptual abilities.
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