Neural mechanisms underlying human consensus decision-making.

Neural mechanisms underlying human consensus decision-making.
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DOI:
10.1016/j.neuron.2015.03.019
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发表时间:
2015-04-22
期刊:
影响因子:
16.2
通讯作者:
O'Doherty, John P.
O'Doherty, John P.
中科院分区:
医学1区
文献类型:
--
作者:
Suzuki, Shinsuke;Adachi, Ryo;Dunne, Simon;Bossaerts, Peter;O'Doherty, John P.

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在群体中建立共识是动物社会的一个标志,但对其潜在的计算和神经机制知之甚少。在这里,我们将一种新颖的计算框架应用于人类参与者的行为和功能磁共振成像数据,这些参与者与最多五个其他参与者执行共识决策任务。我们发现,参与者通过将自己的偏好与大多数小组成员先前选择的信息相结合,以及对每个选项被其他人坚持的程度的推断来达成共识。这些不同的决策变量分别编码在不同的大脑区域:腹内侧前额叶皮层、后上颞沟/颞顶交界处和顶内沟,并整合到背侧前扣带皮层中。我们的研究结果为一种理论解释提供了支持,在这种理论解释中,集体决策是通过整合关于自己、他人和环境的多种类型的推理来做出的,这些推理在不同的大脑模块中进行处理。
Consensus building in a group is a hallmark of animal societies, yet little is known about its underlying computational and neural mechanisms. Here, we applied a novel computational framework to behavioral and fMRI data from human participants performing a consensus decision-making task with up to five other participants. We found that participants reached consensus decisions through integrating their own preferences with information about the majority of group-members’ prior choices, as well as inferences about how much each option was stuck to by the other people. These distinct decision variables were separately encoded in distinct brain areas: the ventromedial prefrontal cortex, posterior superior temporal sulcus/temporoparietal junction and intraparietal sulcus, and were integrated in the dorsal anterior cingulate cortex. Our findings provide support for a theoretical account in which collective decisions are made through integrating multiple types of inference about oneself, others and environments, processed in distinct brain modules.
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