Conflict monitoring versus selection-for-action in anterior cingulate cortex
Conflict monitoring versus selection-for-action in anterior cingulate cortex
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DOI：
10.1038/46035
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发表时间：
1999-11-11
期刊：
影响因子：
64.8
通讯作者：
Cohen, JD
中科院分区：
文献类型：
--
作者：
Botvinick, M;Nystrom, LE;Cohen, JD
前扣带皮层（ACC），位于大脑额叶的内侧表面，被广泛认为参与注意力的调节（1，2），除此之外，然而，它对认知的具体贡献仍然不确定，一个有影响力的理论将ACC内的激活解释为反映“选择行动”（3-5），引导选择环境对象作为行动触发器或目标的一组过程。我们提出了另一种假设，即前扣带回不是用来进行自上而下的注意力控制，而是用来检测信息处理中冲突的发生并发出信号（6-8）。在这里，为了测试这一理论对选择的行动理论，我们使用功能性磁共振成像测量大脑激活过程中的一项任务的性能，其中，对于一个特定的子集的试验，选择的行动强度是负相关的反应冲突的程度。行政协调会内的活动是更大的审判期间具有高层次的冲突（和弱选择的行动）比在审判期间具有低层次的冲突（和强选择的行动），提供证据，有利于冲突监测帐户的行政协调会的功能。
The anterior cingulate cortex (ACC), on the medial surface of the frontal lobes of the brain, is widely believed to be involved in the regulation of attention(1,2), Beyond this, however, its specific contribution to cognition remains uncertain, One influential theory has interpreted activation within the ACC as reflecting 'selection-for-action'(3-5), a set of processes that guide the selection of environmental objects as triggers of or targets for action. We have proposed an alternative hypothesis, in which the ACC serves not to exert top-down attentional control but instead to detect and signal the occurrence of conflicts in information processing(6-8). Here, to test this theory against the selection-for-action theory, we used functional magnetic resonance imaging to measure brain activation during performance of a task where, for a particular subset of trials, the strength of selection-for action is inversely related to the degree of response conflict. Activity within the ACC was greater during trials featuring high levels of conflict (and weak selection-for-action) than during trials with low levels of conflict (and strong selection-for-action), providing evidence in favour of the conflict-monitoring account of ACC function.