298), some of these considerations were addressed via careful characterization of family history status for alcohol and other drugs, and also quantification of the density of the family history (Acheson, Vincent, Sorocco, & Lovallo, 2011). In this study, FH+ status was dichotomously associated with more impulsive discounting and significantly positively related to density of family history of addictive disorders. Thus, although the data are somewhat mixed with regard to family history status and discounting, it appears that when sample sizes are sufficiently large and the status of both FH+ and FH− are thoroughly characterized, there is support for the aggregation of impulsive delay discounting with family history status.
