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Centre for Policy on Ageing | |
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| A re-evaluation of the common factor theory of shared variance among age, sensory function and cognitive function in older adults | | Author(s) | Kaarin J Anstey, Mary A Luszcz, Linnett Sanchez |
| Journal title | Journals of Gerontology: Series B, Psychological Sciences and Social Sciences, vol 56B, no 1, January 2001 |
| Pages | pp P3-P11 |
| Keywords | Mental ageing ; Cognitive processes ; Memory and Reminiscence ; Mental speed ; Theory ; Variance analysis ; Australia. |
| Annotation | The common cause hypothesis of the relationship between age, sensory measures and cognitive measures in very old people is re-evaluated. Both sensory function and processing speed were evaluated as mediators of the relationship between age and cognitive function. Cognitive function was a latent variable comprising three factors - memory, speed and verbal ability. In a sample comprising 894 very old people (mean age 77.7) from the Australian Longitudinal Study of Ageing, a common variance was found in the cognitive factor shared by age, speed, vision and hearing, but that specific effects of age on cognition remained. Furthermore, speed did not fully mediate the effect of age or sensory function on cognition. Some age differences in cognitive performance are not explained by the same processes that explain age differences in sensory function and processing speed. (RH). |
| Accession Number | CPA-010307216 A |
| Classmark | D6: DA: DB: DG: 4D: 3YA: 7YA |
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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