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Chunk #45 — Discussion — A Common Factor Model of Externalizing Behavior and Personality

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Alcohol-related genes show an enrichment of associations with a persistent externalizing factor.
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Dick et al., 2010; Hittner & Swickert, 2006) and previous evidence from twin studies that much of the genetic influence on antisocial behavior is shared with disinhibited personality traits (Harden et al., 2012; Mann et al., under review). Of note, the indicators with the largest (standardized) loadings to the general factor were substance use behaviors (cannabis, alcohol, tobacco), followed by risky sex, sensation seeking, ZK Impulsivity, and finally property crime (Table 1).