title: The concepts of rash impulsiveness and reward sensitivity in substance use disorders.
abstract: According to recent theories of addiction, the commonly used term impulsivity comprises two factors: rash impulsiveness and reward sensitivity. The present study addresses the relevance and generalizability of this two-factor model in a clinical sample of substance use disorder patients. This was examined by examining both internal and external validity. In addition, a comparison was made between self-reported and behavioral measures reflecting reward sensitivity and rash impulsiveness. Results provide evidence for the existence of the two hypothesized impulsivity factors in a clinical sample of substance dependent patients. Meaningful relationships between the model and drug use characteristics have been found, providing further evidence for the validity of the two-factor model. Furthermore, it is suggested that behavioral and self-report measures of impulsivity represent different constructs.
authors.affiliation: Bouman Mental Health Care, Rotterdam, The Netherlands.
authors.forename: Michiel
authors.initials: M
authors.lastname: Boog
authors.forename: Anna E
authors.initials: AE
authors.lastname: Goudriaan
authors.forename: Ben J M
authors.initials: BJ
authors.lastname: van de Wetering
authors.forename: Hilda
authors.initials: H
authors.lastname: Deuss
authors.forename: Ingmar H A
authors.initials: IH
authors.lastname: Franken
mesh_terms: D000328:Adult; D006801:Humans; D007175:Impulsive Behavior / Q000175:diagnosis* / Q000453:epidemiology* / Q000523:psychology; D008297:Male; D008875:Middle Aged; D012201:Reward; D057566:Self Report; D019966:Substance-Related Disorders / Q000175:diagnosis* / Q000453:epidemiology* / Q000523:psychology