GENETIC MEDIATION IN THE RELATIONSHIP OF EDUCATION TO COGNITIVE FUNCTION IN OLDER-PEOPLE
GENETIC MEDIATION IN THE RELATIONSHIP OF EDUCATION TO COGNITIVE FUNCTION IN OLDER-PEOPLE
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DOI:
10.1037/0882-7974.10.1.48
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发表时间:
1995-03-01
影响因子:
3.7
通讯作者:
CARDON, LR
中科院分区:
文献类型:
--
作者:
CARMELLI, D;SWAN, GE;CARDON, LR
We used data from 136 monozygotic and 125 dizygotic human, male twin pairs (M age = 64 years, range = 59 to 70 years) to test whether the previously observed association (r = .30, p < .01) between cognitive performance and education in this sample is genetically mediated. Biometric genetic modeling found that a common genetic latent variable accounted for 44% of the total variance in the Mini-Mental State Exam (MMSE; M. F. Folstein, S. E. Folstein, & P. R. McHugh, 1975), 40% of the variance in the Iowa Screening Battery for Mental Decline (P. J. Eslinger, A. R. Damasio, and A. L. Benton, 1984), and 21% of the variance in educational attainment. In addition, specific genetic and environmental variables contributed significantly to individual differences in education and cognitive performance of the participants.