错误相关负电位(ERN)及其理论解释

Error Related Negativity(ERN)and Its Theoretic Interpretations

错误动作发生后,在个体额叶中部可观察到一个明显的负相电位偏移,这称为"错误相关负电位"(error related negativity,ERN)。有研究者提出了"强化学习理论",认为ERN反映了当前行为结果与预期之间的差异。与此不同的是"冲突监控理论",认为ERN与反应冲突有关。还有研究者提出了"失匹配理论",强调实际反应的神经表征(错误反应)与当前任务所要求的反应表征的差异产生了ERN。在阐述ERN的理论解释基础上,对三者之间的关系进行了分析与整合。

A negativity deflection is found after an error, which is called the error-related negativity （ERN）. Based on the relationship between ERN and error detection, the reinforcement learning theory was put forward to interpret the undergoing mechanism, suggesting that the ERN is associated with the arrival of a negative reward prediction. However, it is also found that ERN seems to appear not only following an error, but also under the condition of a correct response. To account for the relationship between ERN and the conflict,the conflict detection theory has been proposed. Moreover, the third interpretation, the mismatch theory, emphasizes the discrepancy between the representation of the actual response executed（ usually error response） and the desired response. Further, the connection between ERN and error detection, or conflict control, is reviewed.