Centre for Youth Substance Abuse Research, Faculty of Health Sciences, The University of Queensland, Brisbane, QLD 4029, Australia; School of Psychology, The University of Queensland, Brisbane, QLD 4029, Australia.
Centre for Youth Substance Abuse Research, Faculty of Health Sciences, The University of Queensland, Brisbane, QLD 4029, Australia; Alcohol and Drug Assessment Unit, Princess Alexandra Hospital, Brisbane, QLD 4102, Australia; Discipline of Psychiatry, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia.
Addict Behav. 2018 Jan;76:229-235. doi: 10.1016/j.addbeh.2017.08.011. Epub 2017 Aug 18.
The aim of this study was to test a new theoretical model of cannabis use incorporating biologically-based personality traits and social cognition. This biosocial cognitive theory (bSCT) has robust support in alcohol studies, but has not been applied to cannabis. The model proposes two pathways linking dimensions of impulsivity to cannabis use. The first predicts that the association between Reward Sensitivity (SR) and cannabis use is mediated by positive outcome expectancies. The second predicts that the relationship between Rash Impulsiveness (RI) and cannabis use is mediated by cannabis refusal self-efficacy. An extended version of this model was also tested and included a third pathway linking Punishment Sensitivity (SP) to cannabis use via higher negative outcome expectancies.
Participants were 252 18-to-21-year-olds who completed questionnaires assessing cannabis use, personality and social cognition. Theoretical models were tested using structural equation modeling.
The bSCT model provided a good fit to the data (CFI=0.95; RMSEA=0.07; SRMR=0.06). Positive cannabis expectancies and refusal self-efficacy partially mediated the association between SR and cannabis use (p<0.05). Cannabis refusal self-efficacy fully mediated the relationship between RI and cannabis use (p<0.05). The addition of a third SP pathway did not improve model fit.
Consistent with alcohol studies, the association between impulsivity and cannabis use is largely mediated by social cognition. The bSCT may provide novel insights to inform prevention and treatment of problematic cannabis use.
本研究旨在检验一个新的包含生物基础人格特质和社会认知的大麻使用理论模型。该生物社会认知理论（bSCT）在酒精研究中得到了强有力的支持，但尚未应用于大麻。该模型提出了两条将冲动维度与大麻使用联系起来的途径。第一条途径预测，奖赏敏感性（SR）与大麻使用的关联是由积极的预期结果介导的。第二条途径预测，冲动性鲁莽（RI）与大麻使用的关系是由大麻拒绝自我效能感介导的。该模型的扩展版本也进行了测试，包括第三条途径，即通过更高的负面预期结果将惩罚敏感性（SP）与大麻使用联系起来。
参与者为 252 名 18 至 21 岁的年轻人，他们完成了评估大麻使用、人格和社会认知的问卷。使用结构方程模型检验理论模型。
bSCT 模型很好地拟合了数据（CFI=0.95；RMSEA=0.07；SRMR=0.06）。积极的大麻预期和拒绝自我效能感部分介导了 SR 与大麻使用之间的关联（p<0.05）。大麻拒绝自我效能感完全介导了 RI 与大麻使用之间的关系（p<0.05）。增加第三条 SP 途径并不能改善模型拟合度。
与酒精研究一致，冲动与大麻使用之间的关联主要由社会认知介导。bSCT 可能为预防和治疗大麻使用问题提供新的见解。
Zotero 插件