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Ageing and feature binding in visual working memory: The role of presentation time
Stephen Rhodes1, Mario A Parra1,2,3, Robert H Logie1
1a Department of Psychology , Centre for Cognitive Ageing and Cognitive Epidemiology, and Human Cognitive Neuroscience, University of Edinburgh , Edinburgh , UK.
Quarterly Journal of Experimental Psychology (2006)
|May 21, 2015
Summary
Healthy aging does not impair visual working memory for object features. Older adults can bind shape and color information effectively, even with extended study times, challenging previous findings.
Area of Science:
- Cognitive Psychology
- Neuroscience of Aging
Background:
- Healthy aging is associated with associative memory deficits, particularly in recalling relationships between items.
- Older adults generally maintain abilities in forming temporary representations of object features like color and shape.
- Previous research suggested potential age-related difficulties in binding visual features with extended study times, but used between-participant designs.
Purpose of the Study:
- To investigate the impact of presentation time on the ability of younger and older adults to bind shape and color in visual working memory.
- To directly compare age effects on feature binding within a single experimental paradigm using a within-participant design.
Main Methods:
- Employed a within-participant design to assess younger and older adults' visual working memory for color-shape binding.
- Manipulated presentation time to examine its effect on memory for combined features versus individual features.
Main Results:
- Extended study time did not differentially impact older adults' immediate memory for combined color-shape features compared to individual features.
- Results indicate no age-related impairment in immediate visual working memory for color-shape binding.
Conclusions:
- The findings support the notion that immediate visual working memory for feature binding is preserved in healthy aging.
- Extended presentation time does not exacerbate age-related deficits in binding simple visual features like color and shape.
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