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Centre for Policy on Ageing | |
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| Aging and numerosity estimation | | Author(s) | Patrick Lemaire, Mireille Lecacheur |
| Journal title | Journals of Gerontology: Series B, Psychological Sciences and Social Sciences, vol 62B, no 6, November 2007 |
| Pages | pp P305-P312 |
| Source | http://www.geron.org |
| Keywords | Mental speed ; Age groups [elderly] ; Young adults [20-25] ; Cross sectional surveys ; France. |
| Annotation | In two experiments, young and old participants were asked to find the approximate number of dots in collections including between 40 and 460 dots. Experiment 1 showed that both age groups had comparable performance and no age-related differences in the power-function exponents for numerosity. Experiment 2 found that these age-related similarities were not due to speed-accuracy trade-offs or to compensation by older adults for potential age-related decline in numerosity estimation processes. Furthermore, younger and older participants' estimation performance was influenced by physical features of stimuli only for very large numerosities, presumably because these are poorly represented in long-term memory. Implications of these findings for the further understanding of how participants accomplish number estimation tasks and effects of ageing to this domain are discussed. (RH). |
| Accession Number | CPA-080307209 A |
| Classmark | DG: BB: SD6: 3KB: 765 |
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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