Impulsivity and inhibitory control
Impulsivity and inhibitory control
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DOI：
10.1111/j.1467-9280.1997.tb00545.x
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发表时间：
1997-01-01
影响因子：
8.2
通讯作者：
Tannock, R
中科院分区：
文献类型：
--
作者：
Logan, GD;Schachar, RJ;Tannock, R
我们报告了一项实验，检验冲动行为反映了抑制优势反应能力的缺陷这一假设。具体来说，我们研究了冲动的人是否比非冲动的人对抑制信号（停止信号）的反应更慢。在这个实验中，136名本科生完成了冲动性问卷，然后参加了停止信号实验，在该实验中，他们执行了选择反应时（go）任务，并被要求在听到停止信号时抑制对go任务的反应。通过跟踪程序确定开始信号和停止信号之间的延迟，该跟踪程序旨在允许受试者抑制50%的停止信号试验。反应时间去信号并不随冲动，但估计停止信号的反应时间更长，在更冲动的主题，与假设和一致的结果与冲动控制的病理问题的人群。
We report an experiment testing the hypothesis that impulsive behavior reflects a deficit in the ability to inhibit prepotent responses. Specifically, we examined whether impulsive people respond more slowly to signals to inhibit (stop signals) than non-impulsive people. In this experiment, 136 undergraduate students completed an impulsivity questionnaire and then participated in a stop-signal experiment, in which they performed a choice reaction time (go) task and were asked to inhibit their responses to the go task when they heard a stop signal. The delay between the go signal and the stop signal was determined by a tracking procedure designed to allow subjects to inhibits on 50% of the stop-signal trials. Reaction time to the go signal did not vary with impulsivity, but estimated stop-signal reaction time was longer in more impulsive subjects, consistent with the hypothesis and consistent with results from populations with pathological problems with impulse control.