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Effect of age on forward and backward span tasks

Published online by Cambridge University Press:  01 July 2004

ROBERT L. HESTER ,
GLYNDA J. KINSELLA  and
BEN ONG
ROBERT L. HESTER
Affiliation:
School of Psychological Science, La Trobe University, Bundoora, Victoria, Australia Department of Psychology and Trinity College Institute of Neuroscience, Trinity College, Dublin, Ireland
GLYNDA J. KINSELLA
Affiliation:
School of Psychological Science, La Trobe University, Bundoora, Victoria, Australia
BEN ONG
Affiliation:
School of Psychological Science, La Trobe University, Bundoora, Victoria, Australia
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Abstract

The central executive component of working memory has been argued to play an important role in the performance of span tasks, particularly backward span. Age-related decline in central executive function has also been reported, and yet there have been inconsistent findings to indicate that with increasing age, the discrepancy between forward and backward span increases. A secondary analysis of the Wechsler Memory Scale–Third Edition standardization sample (N = 1030) was performed to investigate this relationship. It was hypothesized on the basis of past research indicating an age-related decline in central executive performance, that backward digit and spatial span performance would decrease at a greater rate than forward span performance. However, the results indicated that the rate of age-related performance decline was equivalent for both measures. It is proposed that both forward and backward span tasks recruit central executive resources for successful task performance. (JINS, 2004, 10, 475–481.)

Keywords

Working memorySpatial spanDigit spanWMS–3Aging
Type
Research Article
Information
Journal of the International Neuropsychological Society , Volume 10 , Issue 4 , July 2004 , pp. 475 - 481
Copyright
2004 The International Neuropsychological Society

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