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Centre for Policy on Ageing | |
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Age-related differences in movement control
— adjusting submovement structure to optimize performance | | Author(s) | Neff Walker, David A Philbin, Arthur D Fisk |
| Journal title | The Journals of Gerontology Series B: Psychological Sciences and Social Sciences, vol 52B, no 1, January 1997 |
| Pages | pp P40-P52 |
| Keywords | Cognitive processes ; Mental speed ; Performance ; Age groups [elderly] ; Young adults [20-25] ; Comparison ; United States of America. |
| Annotation | This study aims to isolate the component motor, perceptual and cognitive processes to assess their roles in age-related differences in movement control. Older and younger adults were compared on their ability to use a mouse to position a cursor on a computer display screen. Distance of the movement, size of the target, and relative emphasis on the speed or accuracy of the movement were manipulated. Two types of movement tasks were used, and movement performance was analysed according to stages of movement. The study showed that age group differences were significant when factors were isolated. However, in the task component where all factors could simultaneously affect performance, the age-related difference in performance was less than the difference in either the measure of noise-to-force ratio or perceptual efficiency. Analysis of the submovement structure revealed how older adults compensated for the greater noise and less perceptual efficiency by adjusting the velocity and number of submovements. |
| Accession Number | CPA-980227008 A |
| Classmark | DA: DG: 5H: BB: SD6: 48: 7T |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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