早期冲突加工的调节：在Flanker任务中对情绪词的反应的N200解读.pptx

Modulation of early conflict processing: N200 responses to emotional words in a flanker task早期冲突加工的调节：在Flanker任务中对情绪词的反应的N200 Neuropsychologia 神经心理学杂志 2010 Impact Factor:?3.302 主要内容 一、摘要 （一）研究目的：Recent evidence shows that emotion can facilitate the processing of conflict. This effect is subserved by a neural network including the ventral and dorsal portions of the anterior cingulate cortex and the amygdala. However, the time course of emotional modulation of conflict processing is unknown。 最近的证据显示，情绪可以促进冲突的加工。这种影响是通过包括腹侧和背侧ACC部分和杏仁核的神经网络来促进。然而，情绪调节冲突加工的时间进程还是未知的。 （二）研究方法：Therefore, we presented emotional and neutral words in a version of the flanker task and recorded event-related brain potentials (ERP). 因此，我们通过flanker任务来呈现情绪和中性词，并用ERP来记录脑电活动。 （三）研究结果： Reaction times replicated accelerated conflict processing in emotional compared to neutral trials。 We also observed a conflict-related negativity at 200ms after stimulus onset. Interestingly, this N200 amplitude difference was enhanced in emotional trials. 相比中性试次下，情绪刺激条件下的反应时加速冲突加工。我们也观察到在刺激开始后200ms冲突相关的负波。有趣的是，这个N200在情绪试次下的增强是不同。 （四）研究结论：These data indicate an early influence of emotion on the processing of conflict. Such an adaptive mechanism ensures rapid resolution of conflict in potentially threatening situations. 这些数据表明，情绪对冲突加工的早期影响。这种适应性机制确保我们再威胁情境中能够潜在迅速的解决冲突。 二、问题提出 （一）Resolution of conflict between opposing response tendencies is a vital mechanism that enables coherent goal-directed behavior (Posner, Rueda, Kanske, 2007). It has long been hypothesized that emotional stimuli can trigger conflict processing to reduce the time that an organism is incapable of responding in potentially threatening situations (Norman Shallice, 1986; Pessoa, 2009). 相反的反应倾向下的冲突的解决是一个重要的机制，它能够目标导向行为实现一致性。其中，一个长期的假设就是，情绪刺激可以触发冲冲突加工，进而减少有机体在潜在威胁情况写无能能力应对的时间。{重要性，以及已有研究假设} （二） Using a version of the flanker task (Eriksen Eriksen, 1974), we r