Bouman Mental Health Care, Rotterdam, The Netherlands.
Eur Addict Res. 2013;19(5):261-8. doi: 10.1159/000346178. Epub 2013 Mar 23.
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.
根据最近的成瘾理论，常用术语冲动性由两个因素组成：冲动性和奖励敏感性。本研究通过检验内部和外部效度，探讨了这一具有两个因素模型在物质使用障碍患者临床样本中的相关性和普遍性。此外，还比较了反映奖励敏感性和冲动性的自我报告和行为测量之间的差异。研究结果为物质依赖患者临床样本中存在两个假设的冲动性因素提供了证据。模型与药物使用特征之间存在有意义的关系，进一步证明了该双因素模型的有效性。此外，还表明冲动的行为和自我报告测量代表不同的结构。
