Source localization (LORETA) of the error-related-negativity (ERN/Ne) and positivity (Pe)
Source localization (LORETA) of the error-related-negativity (ERN/Ne) and positivity (Pe)
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DOI：
10.1016/j.cogbrainres.2004.02.013
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发表时间：
2004-07-01
期刊：
影响因子：
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通讯作者：
Fallgatter, AJ
中科院分区：
文献类型：
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作者：
Herrmann, MJ;Römmler, J;Fallgatter, AJ
我们调查了 39 名参与 Eriksen 侧翼任务的受试者的错误处理情况。在所有 39 名受试者中，与正确反应相比，在错误反应后观察到明显的负偏转 (ERN/Ne) 和后来的正成分 (Pe)。使用 LORETA 源定位分析两个组件的神经源。对于阴性成分（ERN/Ne），我们发现内侧前额叶区域的脑电活动明显较高，以应对不正确的反应，而阳性成分（Pe）位于前扣带皮层（ACC）附近，但更多位于喙部。因此，针对 ERN/Ne 和 Pe 找到了不同的神经生成器，这进一步支持了两个与错误相关的组件代表错误处理的不同方面的概念。 (C) 2004 Elsevier B.V. 保留所有权利。
We investigated error processing of 39 subjects engaging the Eriksen flanker task. In all 39 subjects a pronounced negative deflection (ERN/Ne) and a later positive component (Pe) were observed after incorrect as compared to correct responses. The neural sources of both components were analyzed using LORETA source localization. For the negative component (ERN/Ne) we found significantly higher brain electrical activity in medial prefrontal areas for incorrect responses, whereas the positive component (Pe) was localized nearby but more rostral within the anterior cingulate cortex (ACC). Thus, different neural generators were found for the ERN/Ne and the Pe, which further supports the notion that both error-related components represent different aspects of error processing. (C) 2004 Elsevier B.V. All rights reserved.