Childhood sexual abuse and impulsive personality traits: : Mixed evidence for moderation by DRD4 genotype

• Autores: K. Paige Harden, Marie D. Carlson, Natalie Kretsch, William R. Corbin, Kim Fromme
• Localización: Journal of Research in Personality, ISSN-e 1095-7251, Vol. 55, Nº. 1, 2015, págs. 30-40
• Idioma: inglés
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• Resumen

  • This project examines associations between childhood sexual abuse (CSA) and two dimensions of impulsivity (sensation seeking and premeditation), and tests whether CSA-personality associations are moderated by the DRD4 exon III VNTR polymorphism. Sample 1 is from a longitudinal study of university students measured at 10 waves over ages 18–24 years (n = 500). Sample 2 is from a national sample of young adult sibling pairs, ages 18–24, from the National Longitudinal Study of Adolescent Health (n = 2559). In both samples, CSA was associated with elevated sensation seeking. In Sample 1, the association between CSA and sensation seeking was moderated by DRD4 genotype; this gene × environment interaction effect, however, was not replicated in Sample 2. Results suggest new avenues for research on CSA in the area of normal-range personality variation.