The ability to cope with distracting information is a major requirement for goal-directed behavior. It is particularly challenged when distracting information is either potentially relevant or temporally close to goal-directed responses, resulting in so-called distractor-response bindings. According to the theory of event coding (TEC), distractor-response bindings should be reflected by processes in the event file, but not in object file (which stores stimulus features) or the action file (which stores response features). But even though the predictions of this theory are quite elaborated, their electrophysiological underpinnings and the associated functional neuroanatomical structures have remained largely elusive. To examine this, we used a distractor-response binding paradigm in combination with temporal EEG signal decomposition (RIDE) and source localization techniques. We showed that distractor-response binding effects are exclusively evident in the N450 time window of the central C-cluster. Source reconstructions revealed that distractor-response binding effects were associated with brain regions involved in updating internal representations by using task-relevant information to decide on response execution (temporo-parietal junction, BA40), alongside with brain regions involved in conflict resolution processes (right middle frontal gyrus, BA8). Our results suggest that RIDE can be used to dissociate binding processes from stimulus- and response-related processes. On top of this, the results of EEG decomposition match the key assumption of the TEC, that distractor-response bindings occur in event files, but not in object files or action files. The results show how cognitive-theoretical frameworks, such as the TEC, can directly be mapped onto the underlying neurophysiological processes using EEG signal decomposition.

译文

:应付分散注意力的信息的能力是目标导向行为的主要要求。当分散注意力的信息可能潜在相关或在时间上接近于目标导向的响应时,尤其会受到挑战,从而导致所谓的分散注意力-响应约束。根据事件编码(TEC)的理论,干扰项-响应绑定应由事件文件中的进程反映,而不是在目标文件(存储刺激特征)或动作文件(存储响应特征)中反映。但是,即使对该理论的预测进行了详尽的阐述,但它们的电生理基础和相关的功能神经解剖结构仍然难以捉摸。为了检查这一点,我们结合了临时性脑电信号分解(RIDE)和源定位技术,使用了干扰项-响应绑定范式。我们表明,干扰素反应的结合作用在中央C团簇的N450时间窗口中是唯一明显的。来源重构显示,干扰物-反应结合作用与大脑区域有关,该区域通过使用任务相关信息来决定响应执行(颞上顶交界处,BA40),从而与更新内部表征有关,大脑区域与冲突解决过程中涉及的大脑区域(右)中额回,BA8)。我们的结果表明,RIDE可用于将结合过程从刺激和反应相关过程中分离出来。最重要的是,EEG分解的结果与TEC的关键假设相符,即干扰事件响应绑定发生在事件文件中,而不是在目标文件或动作文件中。结果表明,如何使用EEG信号分解将认知理论框架(例如TEC)直接映射到潜在的神经生理过程。

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