Impulsive action but not impulsive choice determines problem gambling severity.
Impulsive action but not impulsive choice determines problem gambling severity.
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DOI：
10.1371/journal.pone.0050647
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Noël X
中科院分区：
文献类型：
--
作者：
Brevers D;Cleeremans A;Verbruggen F;Bechara A;Kornreich C;Verbanck P;Noël X
冲动是问题赌博的一个标志。然而，冲动性并不是一个单一的概念，本研究调查了问题赌博严重性与冲动性的两个方面之间的关系：冲动性行为（抑制运动反应的能力受损）和冲动性选择（对奖励延迟的异常厌恶）。招募对象包括65名问题赌徒和35名正常对照者。在DSM-IV-TR标准的基础上，区分了两组赌徒：问题赌徒（n = 38）和病态赌徒（n = 27），他们的赌博行为持续时间相似。使用反应抑制任务（停止信号任务）评估冲动行为。用延迟折现任务估计冲动选择。记录可能的混淆（如智商、情绪、ADHD症状）。问题赌徒和病态赌徒对奖励的折扣率都高于对照组，但只有病态赌徒在最苛刻的停止信号任务条件下表现出异常低的表现。没有任何潜在的混杂因素与这些结果共变。这些结果表明，尽管异常的冲动选择是所有问题赌徒的特征，但病态赌徒的冲动行为障碍可能是病态赌博的重要发展途径。
Impulsivity is a hallmark of problem gambling. However, impulsivity is not a unitary construct and this study investigated the relationship between problem gambling severity and two facets of impulsivity: impulsive action (impaired ability to withhold a motor response) and impulsive choice (abnormal aversion for the delay of reward). The recruitment includes 65 problem gamblers and 35 normal control participants. On the basis of DSM-IV-TR criteria, two groups of gamblers were distinguished: problem gamblers (n = 38) and pathological gamblers (n = 27) with similar durations of gambling practice. Impulsive action was assessed using a response inhibition task (the stop-signal task). Impulsive choice was estimated with the delay-discounting task. Possible confounds (e.g., IQ, mood, ADHD symptoms) were recorded. Both problem and pathological gamblers discounted reward at a higher rate than their controls, but only pathological gamblers showed abnormally low performance on the most demanding condition of the stop-signal task. None of the potential confounds covaried with these results. These results suggest that, whereas abnormal impulsive choice characterizes all problem gamblers, pathological gamblers' impairments in impulsive action may represent an important developmental pathway of pathological gambling.
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影响因子：
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