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Centre for Policy on Ageing | |
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| The effects of aging on reaction time in a signal detection task | | Author(s) | Roger Ratcliff, Anjali Thapar, Gail McKoon |
| Journal title | Psychology and Aging, vol 16, no 2, June 2001 |
| Pages | pp 323-341 |
| Keywords | Mental speed ; Mental ageing. |
| Annotation | In two simple signal detection tasks with young and older subjects (age 60+), the older subjects were generally slower than young subjects, as indicated in standard Brinley plot analyses. Applying Ratcliffe's 1978 diffusion model to fit the response times, their distributions, and response accuracy, it was found that the larger spread on older subjects' response times and their slowness relative to young subjects comes from a 50 milliseconds slowing of the non-decision components of response time and more from conservative settings of response criteria. (RH). |
| Accession Number | CPA-020111225 A |
| Classmark | DG: D6 |
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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