Holroyd Clay B, Larsen Jeff T, Cohen Jonathan D
Department of Psychology, Princeton University, Princeton, New Jersey 08540, USA.
Psychophysiology. 2004 Mar;41(2):245-53. doi: 10.1111/j.1469-8986.2004.00152.x.
The error-related negativity (ERN) is an event-related brain potential elicited by error commission and by presentation of feedback stimuli indicating incorrect performance. In this study, the authors report two experiments in which participants tried to learn to select between response options by trial and error, using feedback stimuli indicating monetary gains and losses. The results demonstrate that the amplitude of the ERN is determined by the value of the eliciting outcome relative to the range of outcomes possible, rather than by the objective value of the outcome. This result is discussed in terms of a recent theory that holds that the ERN reflects a reward prediction error signal associated with a neural system for reinforcement learning.
错误相关负波（ERN）是一种与事件相关的脑电位，由错误行为以及表明表现不正确的反馈刺激的呈现所引发。在本研究中，作者报告了两项实验，其中参与者试图通过反复试验在反应选项之间进行学习选择，并使用表明金钱得失的反馈刺激。结果表明，ERN的幅度是由引发结果的价值相对于可能结果的范围决定的，而不是由结果的客观价值决定。根据最近的一种理论对这一结果进行了讨论，该理论认为ERN反映了与强化学习神经系统相关的奖励预测误差信号。
