Genetic and Environmental Contributions to Individual Differences: The Three Major Dimensions of Personality
作者:
H. J. Eysenck,
期刊:
Journal of Personality
(WILEY Available online 1990)
卷期:
Volume 58,
issue 1
页码: 245-261
ISSN:0022-3506
年代: 1990
DOI:10.1111/j.1467-6494.1990.tb00915.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
ABSTRACTThis article deals with the contribution of genetic and environmental factors to individual differences in the three major dimensions of personality (Psychoticism, Extraversion, and Neuroticism) Twin studies indicate, and family studies confirm within limits, the strong genetic determination of these and many other personality factors, additive genetic variance accounting for roughly half the total phenotypic variance On the environmental side, shared family environment plays little or no part, all environmental effects being within‐family Assortative mating, important in the formation of social attitudes, has little impact on personality Dominance may be important for Extraversion Epistasis (emergenesis) may account for the comparative low values of dizygotic (DZ) twins' correlations Evidence for differential heritability of traits is present, but not very strong It is concluded that behavioral genetics forms a vital part of the psychological understanding of the causes of individual differences in personali
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