Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands.
Brain Lang. 2012 Nov;123(2):131-6. doi: 10.1016/j.bandl.2012.08.008. Epub 2012 Oct 8.
Self-monitoring in production is critical to correct performance, and recent accounts suggest that such monitoring may occur via the detection of response conflict. The error-related negativity (ERN) is a response-locked event-related potential (ERP) that is sensitive to response conflict. The present study examines whether response conflict is detected in production by exploring a situation where multiple outputs are activated: the bilingual naming of form-related equivalents (i.e. cognates). ERPs were recorded while German-Dutch bilinguals named pictures in their first and second languages. Although cognates were named faster than non-cognates, response conflict was evident in the form of a larger ERN-like response for cognates and adaptation effects on naming, as the magnitude of cognate facilitation was smaller following the naming of cognates. Given that signals of response conflict are present during correct naming, the present results suggest that such conflict may serve as a reliable signal for monitoring in speech production.
自我监控对于正确的表现至关重要，最近的研究表明，这种监控可能是通过检测到反应冲突来实现的。错误相关负波（ERN）是一种与反应相关的事件相关电位（ERP），对反应冲突敏感。本研究通过探索一种多个输出被激活的情况来研究在产生过程中是否检测到反应冲突：形式相关等价物（即同源词）的双语命名。在德国-荷兰双语者用第一语言和第二语言命名图片时，记录了 ERPs。尽管同源词的命名速度快于非同源词，但在同源词和适应效应的形式上可以明显看出反应冲突，因为在命名同源词后，同源词促进的幅度较小。鉴于在正确命名过程中存在反应冲突的信号，本研究结果表明，这种冲突可能是言语产生中监测的可靠信号。
