process in which they are interested in order to maximize the validity of the inferences they draw from their studies. Recent years have seen progress in attempting to identify more homogeneous subfacets of impulsivity, with some of these efforts described here. Importantly, these different aspects of impulsivity appear to be differentially related to different aspects of alcohol use and may help advance our understanding of different pathways of risk to the development of alcohol problems. For example, one of the important distinctions that has emerged when comparing the different dispositions with rash action is that the urgency traits predict problem drinking, whereas sensation seeking predicts the frequency of drinking. Although the necessary research has not yet been conducted, it may be the case that urgency-inspired drinking is more often associated with bad choices, both because of affect-based depletion of cognitive resources (Muraven & Baumeister 2000), and because there may be additive effects of trait urgency and alcohol-induced disinhibition.
