An international team of scientists led by the University of Edinburgh has identified genes associated with people’s general cognitive function.
Against a backdrop of growing international concern about cognitive ageing, analysis of DNA data revealed that general cognitive function was 28 per cent heritable in people aged more than 45 years old. The study also found some genes that had been linked to the development of Alzheimer’s disease were also associated with general cognitive ability.
Professor Ian Deary, Director of the Centre for Cognitive Ageing and Cognitive Epidemiology (CCACE), who led the research, said “Before this study we knew that general thinking skills in older age were heritable to some extent, but we did not know which genes were involved. These findings are exciting in themselves, but they herald more such discoveries as the studies grow in size.”
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