Delayed monitoring of accuracy errors compared to commission errors in ACC

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• 作者：Benoit Bediou^a ; ^b ; ^{benoit.bediou@unige.ch} ; Leonie Koban^a ; ^c ; Sé ; bastien Rosset^a ; ^b ; Gilles Pourtois^d ; David Sander^a ; ^b
• 关键词：Error-related negativity ; GO-NOGO ; Prediction error ; Feedback ; ACC
• 刊名：NeuroImage
• 出版年：2012
• 期刊代码：83_10538119
• 类别：neu
• 出版时间：1 May, 2012
• 卷：60
• 期：4
• 页码：1925-1936
• 文件大小：1022 K

摘要

Error detection is essential for monitoring performance and preparing subsequent behavioral adjustments, and is associated with specific neural responses in the anterior cingulate cortex (ACC). To investigate whether different brain mechanisms subserve the processing of commission vs. accuracy errors, we recorded EEG in adult participants while they performed a novel speeded GO-NOGO aiming task (鈥渢he Shoot-NoShoot paradigm鈥?/em>). Our ERP results show that commission errors (responding during NOGO trials) elicited a classical error-related negativity (ERN) component, followed by an error-related positivity (Pe), as well as a negativity peaking before response onset (pre-ERN). By contrast, spatial accuracy errors elicited a feedback-related negativity (FRN), which correlated with the spatial discrepancy between response and target position across subjects. Fast hits also elicited a pre-ERN but no ERN, suggesting that this pre-response monitoring component might be related to the detection of error likelihood. Although source analysis revealed similar generators in ACC for these different error-related negativities, the respective timing differed, suggesting that commission errors are detected rapidly based on internal motor representations, whereas the detection of accuracy errors in ACC relies on the additional and swift processing of external visual information.