Modulation of the error-related negativity by response conflict
Modulation of the error-related negativity by response conflict
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DOI：
10.1111/j.1469-8986.2009.00860.x
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发表时间：
2009-11-01
期刊：
影响因子：
3.7
通讯作者：
Ullsperger, Markus
中科院分区：
文献类型：
--
作者：
Danielmeier, Claudia;Wessel, Jan R.;Ullsperger, Markus
采用Eriksen侧翼任务的箭形版本，研究了冲突对错误相关负性（ERN）的影响。通过改变侧翼与靶箭之间的距离（CLOSE和FAR条件）来调节冲突的程度。该模型以冲突监控理论为基础，采用模拟的行为和事件相关电位数据，计算模型预测了FAR不相容条件下ERN振幅的增加。（低冲突条件）与CLOSE不兼容错误相比随后的ERP实验证实了模型的预测。计算模型解释了这一发现与更大的postresponse冲突，在遥远的试验。此外，N2和LRP的数据和模式预测支持ERN的冲突解释
An arrow version of the Eriksen flanker task was employed to investigate the influence of conflict on the error-related negativity (ERN) The degree of conflict was modulated by varying the distance between flankers and the target arrow (CLOSE and FAR conditions). Error rates and reaction time data from a behavioral experiment were used to adapt a connectionist model of this task This model was based on the conflict monitoring theory and simulated behavioral and event-related potential data The computational model predicted an increased ERN amplitude in FAR incompatible (the low-conflict condition) compared to CLOSE incompatible errors (the high-conflict condition) A subsequent ERP experiment confirmed the model predictions. The computational model explains this finding with larger postresponse conflict in far trials. In addition, data and model predictions of the N2 and the LRP support the conflict interpretation of the ERN