with alcoholism showed lower socialization scores than individuals with no such familial risk, alongside an increased number of commission errors during performance of a go/no-go reaction time task (Saunders et al., 2008). Other data suggest that such impairments might also be differentially susceptible to the reduced serotonin activity (LeMarquand et al., 1999) Finally, first degree of individuals with bipolar disorder show evidence of weakened response inhibition as part of a larger cognitive endophenotype (Bora et al., 2009).