Journal
JOURNALS OF GERONTOLOGY SERIES B-PSYCHOLOGICAL SCIENCES AND SOCIAL SCIENCES
Volume 56, Issue 4, Pages P226-P233Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/geronb/56.4.P226
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Funding
- NIA NIH HHS [AG15211, AG04563, AG10175] Funding Source: Medline
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A Swedish version of the National Geographic Smell Survey (Wysocki & Gilbert, 1989) was completed by 127 twin pairs from the Swedish Adaption/Twin Study of Aging, Twins ranged in age from 45 to 89 years. Quantitative genetic analysis of four measures of olfactory functioning indicated moderate heritability for odor identification and perceived intensity and nonsignificant heritability for odor detection and perceived pleasantness. Bivariate analyses revealed that the relationship between odor identification and measures of verbal ability was primarily genetically. mediated. The results provided further support for the hypothesis that odor identification and verbal ability in general tap the same cognitive domain (Larsson, 1997).
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