To PE or not to PE: A P3-like ERP component reflecting the processing of response errors
To PE or not to PE: A P3-like ERP component reflecting the processing of response errors
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DOI：
10.1111/j.1469-8986.2009.00790.x
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发表时间：
2009-05-01
期刊：
影响因子：
3.7
通讯作者：
Wijnen, Jasper G.
中科院分区：
文献类型：
--
作者：
Ridderinkhof, K. Richard;Ramautar, Jennifer R.;Wijnen, Jasper G.
事件相关电位（ERP）研究突出了人们犯错时可观察到的几种脑电皮层成分。我们提出，错误正波（P-E）所反映的过程在功能上与P3所反映的过程类似，且P-E和P3应存在共变关系。我们推测，这些过程对于P3而言指的是罕见目标刺激的动机意义，对于P-E而言则指的是明显的行为错误的动机意义。在此，我们探究了在西蒙任务（Simon task）中犯错后的P-E波幅，是否与视觉Oddball任务中不同的目标 - 目标间隔存在特定关联，目标 - 目标间隔是一个已知会对P3波幅产生参数性影响的因素。研究观察到，P-E的波幅（而非错误负波N-E的波幅）与目标 - 目标间隔对P3波幅的影响存在共变关系。这一新发现的特异性支持了这样一种观点，即P-E和P3反映了类似的神经认知过程，这些过程可能参与了对具有动机意义事件的有意识处理。
ERP studies have highlighted several electrocortical components that can be observed when people make errors. We propose that the P-E reflects processes functionally similar to those reflected in the P3 and that the P-E and P3 should covary. We speculate that these processes refer to the motivational significance of rare target stimuli in case of the P3 and of salient performance errors in case of the P-E. Here we investigated whether P-E amplitude after errors in a Simon task is correlated specifically to varying target-target intervals in a visual oddball task, a factor known to parametrically affect P3 amplitude. The amplitude of the P-E, but not the N-E, was observed to covary with the effect of target-target interval on P3 amplitude. The specificity of this novel finding supports the notion that the P-E and P3 reflect similar neurocognitive processes as possibly involved in the conscious processing of motivationally significant events.