TY - JOUR
T1 - Genetic and environmental structure of Cloninger's temperament and character dimensions
AU - Ando, Juko
AU - Suzuki, Atsunobu
AU - Yamagata, Shinji
AU - Kijima, Nobuhiko
AU - Maekawa, Hiroko
AU - Ono, Yutaka
AU - Jang, Kerry L.
PY - 2004/1/1
Y1 - 2004/1/1
N2 - The multivariate genetic and environmental structure of Cloninger's Temperament and Character Inventory (TCI) was investigated in a sample of 617 pairs of adolescent and young adult twins from Japan. Additive genetic factors accounted for 22% to 49% of the variability on all TCI temperament scales. Although the theory predicts lower heritability for the character scales, all character subscales had a substantial genetic contribution, and nonshared environmental influences accounted for the remainder. Multivariate genetic analyses showed that several subscales used to define one dimension shared a common genetic basis with subscales defining others. Using the degree of shared genetic influence as the basis to rearrange the TCI subscales into new dimensions, it was possible to create genetically independent scales. The implications for personality measurement, theory, and molecular genetic research are discussed.
AB - The multivariate genetic and environmental structure of Cloninger's Temperament and Character Inventory (TCI) was investigated in a sample of 617 pairs of adolescent and young adult twins from Japan. Additive genetic factors accounted for 22% to 49% of the variability on all TCI temperament scales. Although the theory predicts lower heritability for the character scales, all character subscales had a substantial genetic contribution, and nonshared environmental influences accounted for the remainder. Multivariate genetic analyses showed that several subscales used to define one dimension shared a common genetic basis with subscales defining others. Using the degree of shared genetic influence as the basis to rearrange the TCI subscales into new dimensions, it was possible to create genetically independent scales. The implications for personality measurement, theory, and molecular genetic research are discussed.
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U2 - 10.1521/pedi.2004.18.4.379
DO - 10.1521/pedi.2004.18.4.379
M3 - Article
C2 - 15342324
AN - SCOPUS:4744362139
SN - 0885-579X
VL - 18
SP - 379
EP - 393
JO - Journal of Personality Disorders
JF - Journal of Personality Disorders
IS - 4
ER -
