measures including two risk-taking tasks designed by the authors, a delay discounting task, and self-report measures (SSS, BIS and a self-report measure of aggression). Compared to the healthy controls, alcohol dependent individuals demonstrated poorer response inhibition, higher rates of delay discounting, higher rates of risk responses in the risk-taking paradigm, and higher self-reported BIS and aggression scores. Interestingly, aggression was significantly correlated with steepness of delay discounting for the entire sample, supporting the idea that aggression is related to at least one behavioral form of impulsivity. Further, alcohol dependent males with an earlier age of problem drinking onset and with a problem-drinking parent demonstrated higher rates of aggression compared to those with later onset problem drinking and no problem-drinking parent (Bjork et al., 2004). Parrott & Giancola (2006) also investigated the relationship between alcohol use, impulsivity and aggression in male and female drinkers with an AUD between 21 and 35 years of age, using the BIS. Although alcohol dependence did not mediate the relationship between impulsivity and aggression, the attentional and motor impulsivity subscales of the BIS mediated the relationship between alcohol dependence and physical aggression in men.
