Emotion Triggers Executive Attention: Anterior Cingulate Cortex and Amygdala Responses to Emotional Words in a Conflict Task
Emotion Triggers Executive Attention: Anterior Cingulate Cortex and Amygdala Responses to Emotional Words in a Conflict Task
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DOI：
10.1002/hbm.21012
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发表时间：
2011-02-01
影响因子：
4.8
通讯作者：
Kotz, Sonja A.
中科院分区：
文献类型：
--
作者：
Kanske, Philipp;Kotz, Sonja A.
连贯的行为依赖于注意力控制，它能检测和解决对立行为之间的冲突。目前的功能性磁共振成像研究验证了这样一个假设：情绪触发注意力控制，以加速在特别突出的情况下的冲突处理。因此，我们在侧翼任务的一个版本中提出了情绪消极和中性的词。在冲突的反应中，我们发现背侧前扣带皮层（ACC）和杏仁核对情绪刺激的激活。当情绪和冲突同时发生时，腹侧前扣带回中的一个区域被激活，这导致反应时间更快的冲突处理。在冲突试验中，情绪也增加了腹侧ACC与背侧ACC和杏仁核激活之间的功能连接。这些数据表明，腹侧前扣带回整合情绪和冲突，并优先处理情绪试验中的冲突。这种自适应机制确保在由情绪刺激发出信号的潜在威胁情况下快速检测和解决冲突。《脑地图》32：198-208，2011年。(C)2010 Wiley-Liss，Inc.
Coherent behavior depends on attentional control that detects and resolves conflict between opposing actions. The current functional magnetic resonance imaging study tested the hypothesis that emotion triggers attentional control to speed up conflict processing in particularly salient situations. Therefore, we presented emotionally negative and neutral words in a version of the flanker task. In response to conflict, we found activation of the dorsal anterior cingulate cortex (ACC) and of the amygdala for emotional stimuli. When emotion and conflict coincided, a region in the ventral ACC was activated, which resulted in faster conflict processing in reaction times. Emotion also increased functional connectivity between the ventral ACC and activation of the dorsal ACC and the amygdala in conflict trials. These data suggest that the ventral ACC integrates emotion and conflict and prioritizes the processing of conflict in emotional trials. This adaptive mechanism ensures rapid detection and resolution of conflict in potentially threatening situations signaled by emotional stimuli. Hum Brain Mapp 32: 198-208, 2011. (C) 2010 Wiley-Liss, Inc.