Functional imaging of decision conflict
Functional imaging of decision conflict
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DOI：
10.1523/jneurosci.4195-07.2008
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发表时间：
2008-03-26
影响因子：
5.3
通讯作者：
Cohen, Jonathan D.
中科院分区：
文献类型：
--
作者：
Pochon, Jean-Baptiste;Riis, Jason;Cohen, Jonathan D.
决策冲突发生在人们不确定从一组相似的有吸引力（或没有吸引力）的选项中选择哪个选项时，许多研究表明这种冲突可能导致次优决策。在这篇文章中，我们调查了决策冲突的神经生物学基础，特别是前扣带皮层（ACC）的参与。以前的研究表明，在知觉任务中，ACC参与冲突监测，但有相当大的争议，是否ACC实际上索引冲突相关的选择，或仅仅是冲突相关的选择竞争运动反应。在一项功能性磁共振成像研究中，我们分离了决策任务的决策和反应阶段，并表明ACC确实在决策阶段索引冲突。此外，我们表明，它是一个复杂的决策任务，需要整合的信念和偏好，而不仅仅是感性的判断。
Decision conflict occurs when people feel uncertain as to which option to choose from a set of similarly attractive ( or unattractive) options, with many studies demonstrating that this conflict can lead to suboptimal decision making. In this article, we investigate the neurobiological underpinnings of decision conflict, in particular, the involvement of the anterior cingulate cortex (ACC). Previous studies have implicated the ACC in conflict monitoring during perceptual tasks, but there is considerable controversy as to whether the ACC actually indexes conflict related to choice, or merely conflict related to selection of competing motor responses. In a functional magnetic resonance imaging study, we dissociate the decision and response phases of a decision task, and show that the ACC does indeed index conflict at the decision stage. Furthermore, we show that it does so for a complex decision task, one that requires the integration of beliefs and preferences and not just perceptual judgments.