Developmental psychopathology, personality, and temperament: reflections on recent behavioral genetics research (original) (raw)

Human biology, 1998

Abstract

Personality, temperament, and psychopathology were until recently largely distinct areas of study, each of which emphasized partitioning of heritable and environmental variance. The emergence of the paradigm of developmental psychopathology along with application of multivariate biometric models to behavioral genetic data has defined a second phase of research in these domains. Integrated research has begun to map dimensional liability-threshold models of psychopathology and to evaluate empirically the categorical versus dimensional etiology of traits and disorders. An interesting pattern in the data is that psychopathology is probably not merely an extreme of temperament or personality in many cases. Variations in temperament and personality are now known to be heavily influenced by additive genetic and nonshared environmental factors and to exhibit stable or increasing heritability across development. This pattern holds for some measures of psychopathology but not for others. For ...

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