State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China.
Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing 100101, China.
Neuroimage. 2022 Aug 15;257:119265. doi: 10.1016/j.neuroimage.2022.119265. Epub 2022 May 5.
To optimize our decisions, we may change our mind by utilizing social information. Here, we examined how changes of mind were modulated by Social Misalignment Sensitivity (SMS), egocentric tendency, and decision preferences in a decision-making paradigm including both risk and social information. Combining functional magnetic resonance imaging with computational modeling, we showed that both SMS and egocentric tendency modulated changes of mind under the influence of social information. While SMS was represented in the dorsal anterior cingulate cortex (dACC) and superior parietal gyrus (SPG) in the socially aligned situation, a distributed brain network was activated in the misaligned condition, including not only the dACC and SPG but also superior frontal gyrus and precuneus. These results suggest that SMS is related to a monitoring brain system, the scope of which varies according to the level of misalignment with social majority. The dorsolateral prefrontal cortex selectively interacted with SMS among the participants with a low switching threshold, indicating that its regulation on SMS may be sensitive to inter-individual variation. Our findings highlight the predominant roles of SMS and the prefrontal control system towards changes of mind under social influence.
为了优化决策，我们可能会利用社会信息来改变主意。在这里，我们在一个包含风险和社会信息的决策范式中，考察了社会不一致敏感性 (SMS)、自我中心倾向和决策偏好如何调节思维的转变。通过功能磁共振成像与计算模型相结合，我们表明 SMS 和自我中心倾向都在社会信息的影响下调节思维的转变。虽然在社会一致的情况下，SMS 是在前扣带皮层 (dACC) 和顶下小叶 (SPG) 中表示的，但在不一致的情况下，一个分布式的大脑网络被激活，包括不仅 dACC 和 SPG，还有额上回和楔前叶。这些结果表明，SMS 与一个监测大脑系统有关，该系统的范围根据与社会多数的不一致程度而变化。在切换阈值较低的参与者中，背外侧前额叶皮层与 SMS 选择性地相互作用，表明其对 SMS 的调节可能对个体间的差异敏感。我们的发现强调了 SMS 和前额叶控制系统在社会影响下思维转变的主导作用。
