Components of the Behavioral Activation System and Functional Impulsivity: A test of discriminant hypotheses

It has recently been suggested that the concept of Functional Impulsivity bears some similarity to the sensitivity of the Behavioral Activation System (BAS; Smillie & Jackson, 2006). In the present research we take a closer look at this idea, testing more specific hypotheses on the associations of different BAS-related components with Functional and Dysfunctional Impulsivity. Analyzing a sample of 719, we found that the Drive component was uniquely connected with Functional Impulsivity, and Fun Seeking was linked to both impulsivities, but more weakly so to Functional Impulsivity compared with Drive. Reward Responsiveness was unrelated to Impulsivity. Implications for the conceptualization of Functional Impulsivity and for a complex view of BAS-related functions are addressed.