Holroyd Clay B, Krigolson Olave E
Department of Psychology, University of Victoria, Victoria, BC, Canada.
Psychophysiology. 2007 Nov;44(6):913-7. doi: 10.1111/j.1469-8986.2007.00561.x. Epub 2007 Jul 19.
The feedback error-related negativity (fERN) is a component of the human event-related brain potential (ERP) elicited by feedback stimuli. A recent theory holds that the fERN indexes a reward prediction error signal associated with the adaptive modification of behavior. Here we present behavioral and ERP data recorded from participants engaged in a modified time estimation task. As predicted by the theory, our results indicate that fERN amplitude reflects a reward prediction error signal and that the size of this error signal is correlated across participants with changes in task performance.
反馈错误相关负波（fERN）是由反馈刺激引发的人类事件相关脑电位（ERP）的一个成分。最近的一种理论认为，fERN指示与行为适应性改变相关的奖励预测误差信号。在此，我们展示了参与一项改良时间估计任务的参与者记录的行为和ERP数据。正如该理论所预测的，我们的结果表明，fERN波幅反映了奖励预测误差信号，并且该误差信号的大小在参与者之间与任务表现的变化相关。
