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Spatial-Sequential Working Memory in Younger and Older Adults: Age Predicts Backward Recall Performance within Both
1School of Psychological Sciences and Health, University of Strathclyde Glasgow, UK.
Frontiers in Psychology
|October 21, 2016
Summary
Older adults show reduced spatial working memory capacity compared to younger adults. Backward recall tasks are more sensitive to aging, highlighting age-related declines in active spatial memory processing across the lifespan.
Area of Science:
- Cognitive Neuroscience
- Human Aging Research
- Psychology
Background:
- Working memory capacity declines with age, impacting various cognitive functions.
- The age-sensitivity of spatial-sequential working memory tasks, particularly their passive versus active nature, remains debated.
- Understanding these age-related changes is crucial for cognitive health and interventions.
Purpose of the Study:
- To investigate the functional architecture of spatial working memory in younger and older adults.
- To compare the performance on passive and active spatial working memory recall tasks across different age groups.
- To determine the influence of interference and recall type on spatial working memory across the adult lifespan.
Main Methods:
- Utilized a modified Spatial Span subtest from the Wechsler Memory Scale - Third Edition (WMS-III).
- Assessed spatial working memory in younger (18-40 years) and older (64-85 years) adults.
- Investigated the effects of control, visual, and spatial interference, alongside forward and backward recall types.
Main Results:
- Younger adults exhibited significantly larger spatial working memory capacity than older adults.
- Spatial interference (spatial tapping) impaired performance in both age groups and recall types, indicating reliance on active spatial rehearsal.
- Backward recall performance was significantly predicted by age in both younger and older adult groups, suggesting it is more processing-intensive.
Conclusions:
- Spatial working memory capacity is reduced in older adults compared to younger adults.
- Both forward and backward recall of spatial sequences depend on active spatial rehearsal, which is similarly utilized by both age groups.
- Backward spatial span performance is more sensitive to aging than forward span, highlighting age-related declines in processing-intensive working memory tasks across the adult lifespan.
Keywords:
Corsi blocks testageingcentral executive attentioncognitive agingspatial-sequential working memoryspatio-sequentialvisual-spatialvisuo-spatial sketchpadMore Related Videos
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