In many situations, decision-making behaviors are mostly composed of team patterns (i.e., more than two persons). However, brain-based models that inform how team interactions contribute and impact team collaborative decision-making (TCDM) behavior, is lacking. To examine the neural substrates activated during TCDM in realistic, interpersonal interaction contexts, dyads were asked to model TCDM toward their opponent, in a multi-person prisoner’s dilemma game, while neural activity was measured using functional near infrared spectroscopy. These experiments resulted in two main findings. First, there are different neural substrates between TCDM and ISDM, which were modulated by social environmental cues. i.e., the low incentive reward yielded higher activation within the left inferior frontal gyrus (IFG), in individual separately decision-making (ISDM) stage while the dorsolateral prefrontal cortex (DLPFC) and the middle frontopolar area was activated in TCDM stage. The high incentive reward evoked a higher interbrain synchrony (IBS) value in the right IFG in TCDM stage. Second, males showed higher activation in the DLPFC and the middle frontopolar area during ISDM, while females evoked higher IBS in the right IFG during TCDM. These sex effects suggest that in individual social dilemma situations, males and females may separately depend on non-social and social cognitive ability to make decisions, while in the social interaction situations of TCDM, females may depend on both social and non-social cognitive abilities. This study provide a compelling basis and interesting perspective for future neuroscience work of TCDM behaviors.

中文翻译：

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团队协作决策的脑间同步：一项 fNIRS 超扫描研究 跑步头：团队决策的脑间同步


在很多情况下，决策行为大多由团队模式（即两个人以上）组成。然而，缺乏基于大脑的模型来告知团队互动如何促进和影响团队协作决策（TCDM）行为。为了在现实的人际互动环境中检查 TCDM 期间激活的神经基质，要求两人在多人囚徒困境游戏中针对对手模拟 TCDM，同时使用功能性近红外光谱测量神经活动。这些实验产生了两个主要发现。首先，TCDM 和 ISDM 之间存在不同的神经基质，它们受到社会环境因素的调节。即，在个体单独决策（ISDM）阶段，低激励奖励在左额下回（IFG）内产生较高的激活，而背外侧前额叶皮层（DLPFC）和中额极区在TCDM阶段被激活。高额激励奖励在 TCDM 阶段引起右侧 IFG 较高的脑间同步（IBS）值。其次，男性在 ISDM 期间 DLPFC 和中额极区表现出较高的激活，而女性在 TCDM 期间在右侧 IFG 中诱发较高的 IBS。这些性别效应表明，在个体社会困境情境中，男性和女性可能分别依赖于非社会和社会认知能力来做出决定，而在TCDM的社会互动情境中，女性可能同时依赖于社会和非社会认知能力。这项研究为未来 TCDM 行为的神经科学研究工作提供了令人信服的基础和有趣的视角。