张汉其等:Distinguishing the Roles of the Dorsomedial Prefrontal Cortex and

2022-04-26 17:07:55 |来源:BEST@SCNU |点击: |收藏本文

近日,经济行为科学重点实验室张汉其、董志强、蔡圣刚、赵俊(通讯)完成的论文被Frontiers in Human Neuroscience杂志接受发表。

Zhang, Hanqi, Zhiqiang Dong, Shenggang Cai, and Jun Zhao. "Distinguishing the Roles of the Dorsomedial Prefrontal Cortex and Right Temporoparietal Junction in Altruism in Situations of Inequality: A tDCS Study." Frontiers in human neuroscience (2022): 126.


The right temporoparietal junction (rTPJ) and dorsomedial prefrontal cortex (dmPFC), which are involved in social cognition, have been proposed to play key roles in guiding human altruistic behavior. However, no study has provided empirical evidence that the rTPJ and dmPFC play distinct roles in altruism under situations of inequality. A total of 107 healthy young adults were randomly assigned to receive anodal or sham transcranial direct current stimulation (tDCS) to either the dmPFC or rTPJ, and they participated in a modified dictator game. The stimulation of the dmPFC increased the level of altruistic behavior, while the stimulation of the rTPJ did not. Furthermore, we determined that the increase in altruism induced by tDCS of the dmPFC could be modulated by perspective taking. These results demonstrate that the dmPFC and rTPJ play distinct roles in the enhancement of altruism in situations of inequality; this finding is consistent with theories proposing that the dmPFC has evolved mechanisms dedicated to perspective taking. 


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