冲突监测的时间动态及其一个或两个冲突源对错误（相关）负波的影响。
Temporal dynamics of conflict monitoring and the effects of one or two conflict sources on error-(related) negativity.
机构信息
Department of Psychology, University of Cologne, Höninger Weg 115, Köln, Germany.
出版信息
Biol Psychol. 2010 Sep;85(1):112-23. doi: 10.1016/j.biopsycho.2010.06.002. Epub 2010 Jun 11.
The present electrophysiological study investigated the temporal development of response conflict and the effects of diverging conflict sources on error(-related) negativity (Ne). Eighteen participants performed a combined stop-signal flanker task, which was comprised of two different conflict sources: a left-right and a go-stop response conflict. It is assumed that the Ne reflects the activity of a conflict monitoring system and thus increases according to (i) the number of conflict sources and (ii) the temporal development of the conflict activity. No increase of the Ne amplitude after double errors (comprising two conflict sources) as compared to hand- and stop-errors (comprising one conflict source) was found, whereas a higher Ne amplitude was observed after a delayed stop-signal onset. The results suggest that the Ne is not sensitive to an increase in the number of conflict sources, but to the temporal dynamics of a go-stop response conflict.
本电生理研究调查了反应冲突的时间发展以及不同冲突源对错误相关负波（Ne）的影响。18 名参与者进行了一项结合停止信号侧抑制任务，其中包含两个不同的冲突源：左右和前进-停止反应冲突。据假设，Ne 反映了冲突监测系统的活动，因此会根据（i）冲突源的数量和（ii）冲突活动的时间发展而增加。与手-和停止错误（包含一个冲突源）相比，双错误（包含两个冲突源）后 Ne 振幅没有增加，而在延迟停止信号开始后观察到更高的 Ne 振幅。结果表明，Ne 对冲突源数量的增加不敏感，而是对前进-停止反应冲突的时间动态敏感。
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