Article
Genetic and environmental influences on odor identification ability in the very old.
Psychology and aging - 1 Dec 2011
Doty Richard L, Petersen Inge, Mensah Nii, Christensen Kaare
Abstract excerpt
Odor identification ability and cognition were measured in a population-based cohort of 1,222 very old twins and singletons, including 91 centenarians. Heritability for identifying odors was low, in contrast to that for cognition. Common genes were found to contribute to both olfaction and cognition. In a multiple regression model, sex, age, cognitive function, and smoking, but not APOEε4 status, were significant...
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