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Complex figure recall in the elderly: a deficit in memory or constructional strategy?
J S Janowsky1, L J Thomas-Thrapp
1Oregon Health Sciences University, Department of Neurology, Portland 97201.
Journal of Clinical and Experimental Neuropsychology
|March 1, 1993
Summary
Aging impairs spatial memory, but not due to planning issues. Elderly individuals showed similar copying strategies to younger ones, indicating age-related spatial memory decline stems from other factors.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Gerontology
Background:
- Spatial memory is crucial for daily functioning and is known to decline with age.
- Frontal lobe functions, including planning and organization, are hypothesized to underlie age-related spatial memory deficits.
Purpose of the Study:
- To investigate if age-related decline in spatial memory is linked to frontal lobe-mediated planning and organizational deficits.
- To compare the copying and recall strategies of elderly and younger subjects using the Rey-Osterrieth Figure.
Main Methods:
- Assessed copy and recall abilities using the Rey-Osterrieth Figure in 49 elderly and 20 younger subjects.
- Compared the construction methods (order of line production) during figure copying between the age groups.
Main Results:
- Elderly subjects performed comparably to younger subjects when copying the Rey-Osterrieth Figure.
- Older adults performed significantly worse than younger adults when recalling the figure from memory.
- Organizational strategies during copying did not differ between the age groups, suggesting this is not the cause of memory deficits.
Conclusions:
- Spatial memory deficits in the elderly are not attributable to abnormal organizational strategies during figure construction.
- The findings suggest that age-related spatial memory decline may involve other cognitive processes beyond frontal lobe-mediated planning and organization.
- Results are discussed in the context of frontal lobe damage and mild dementia data.