Impulsivity and Risk-Taking in Borderline Personality Disorder With and Without Substance Use Disorders
Impulsivity and Risk-Taking in Borderline Personality Disorder With and Without Substance Use Disorders
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DOI：
10.1037/a0020574
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发表时间：
2011-04-01
影响因子：
2.8
通讯作者：
Holloman, Garland
中科院分区：
文献类型：
--
作者：
Coffey, Scott F.;Schumacher, Julie A.;Holloman, Garland
对患有边缘性人格障碍（仅 BPD；n = 19）、BPD 和当前或过去的物质使用障碍（BPD-SUD；n = 32）和匹配对照组（MC；n = 28）的参与者的冲动和冒险倾向进行评估。参与者接受了冲动多维结构的两个方面的行为测量[GoStop、延迟贴现任务（DDT）]、一种冒险倾向测量[气球模拟风险任务（BART）]和两种冲动自我报告测量（即巴雷特冲动量表、艾森克冲动量表）。 BPD-SUD 组（而非仅 BPD 组）在 DDT 上比 MC 组更快地贴现延迟奖励，这表明 BPD-SUD/MC 组的差异可能是由于 SUD 而不是 BPD。相比之下，与 MC 组相比，BPD-SUD 组和仅 BPD 组表现出较差的行为反应抑制，但这两个 BPD 组之间没有差异。这一发现表明，行为反应抑制的差异可能是由于 BPD 而不是 SUD，并且行为反应去抑制可能是 BPD 的核心特征。各组在冒险倾向（即 BART）的衡量上没有差异。在自我报告问卷中，BPD-SUD 组比仅 BPD 组更容易冲动，而两个 BPD 组都比 MC 组更容易冲动。来自 DDT 和自我报告测量的数据为以下假设提供了部分支持：具有 SUD 的 BPD 个体比没有 SUD 的 BPD 个体在冲动的某些方面（例如，渴望获得较小的即时奖励，而不是等待将来获得较大的奖励）更加冲动。结果表明，行为反应抑制可能是 BPD 治疗研究的一个新的治疗结果变量。
Impulsivity and risk taking propensity were assessed in participants with borderline personality disorder (BPD-only; n = 19), BPD and a current or past substance use disorder (BPD-SUD; n = 32), and a matched comparison group (MC; n = 28). Participants were administered behavioral measures of two facets of the multidimensional construct of impulsivity [GoStop, delay discounting task (DDT)], one measure of risk-taking propensity [Balloon Analog Risk Task (BART)], and two self-report measures of impulsivity (i.e., Barrett Impulsiveness Scale, Eysenck Impulsiveness Scale). The BPD-SUD group, but not the BPD-only group, discounted delayed rewards faster than the MC group on the DDT, suggesting that the BPD-SUD/MC group difference may be because of the SUD rather than BPD. In contrast, both the BPD-SUD and BPD-only groups exhibited poorer behavioral response inhibition compared with the MC group, but the two BPD groups did not differ from one another. This finding suggests that the differences in behavioral response inhibition may be because of BPD rather than SUD and that behavioral response disinhibition may be a core feature of BPD. None of the groups differed on the measure of risk-taking propensity (i.e., BART). On self-report questionnaires, the BPD-SUD group reported more impulsivity than the BPD-only group and both BPD groups reported more impulsivity than the MC group. Data from the DDT and self-report measures provide partial support for the hypothesis that BPD individuals with a SUD are more impulsive than BPD individuals without a SUD on some facets of impulsivity (e.g., desire to obtain a smaller immediate reward rather than wait to obtain a larger reward in the future). Results suggest that behavioral response inhibition may be a novel treatment outcome variable for BPD treatment studies.