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Centre for Policy on Ageing | |
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| Surprising lack of sex differences in normal cognitive aging in twins | | Author(s) | Deborah Finkel, Chandra A Reynolds, Stig Berg |
| Journal title | International Journal of Aging and Human Development, vol 62, no 4, 2006 |
| Pages | pp 335-358 |
| Source | http://baywood.com |
| Keywords | Mental ageing ; Cognitive processes ; Older men ; Older women ; Twins ; Longitudinal surveys ; Sweden. |
| Annotation | Sex differences in the aetiology of normal cognitive functioning in ageing remain largely unexplored. An investigation was conducted of genetic and environmental contributions to sex differences in level of cognitive performance and rate of decline in the Swedish Adoption/Twin Study of Aging (SATSA) (Finket & Pedersen, 2004) data set. Behavioural genetic analysis of a latent growth curve model fitted longitudinal data on 11 cognitive measures. 798 non-demented individuals had cognitive data across four waves of measurement covering 13 years. Participants ranged in age from 44 to 88 at first testing wave; 60% were female. Results indicated sex differences in mean performance for five cognitive measures and in rates of decline for Information and Card Rotations. Only Synonyms demonstrated sex differences in genetic and environmental contributions to mean performance: heritability was higher in men than women. Despite differential longevity and susceptibility to disease, there are no consistent indications that men and women show different patterns of cognitive ageing. (KJ/RH). |
| Accession Number | CPA-060608208 A |
| Classmark | D6: DA: BC: BD: SVR: 3J: 76P |
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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