Transcranial direct current stimulation of the medial prefrontal cortex modulates the propensity to help in costly helping behavior
Transcranial direct current stimulation of the medial prefrontal cortex modulates the propensity to help in costly helping behavior
复制标题
内侧前额叶皮层的经颅直流电刺激可调节昂贵的帮助行为的倾向
DOI：
10.1016/j.neulet.2018.03.027
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发表时间：
2018-05-01
影响因子：
2.5
通讯作者：
Cui, Fang
中科院分区：
文献类型：
--
作者：
Liao, Chong;Wu, Song;Cui, Fang
Social decision-making engages traditional decision-making processes (e.g. valuation), as well as social cognition processes (e.g. inferring the affective and mental states of another person). Neuroimaging and neuro-stimulation studies have suggested the involvement of the medial prefrontal cortex (mPFC) in a variety of social decision-making tasks. Yet no study has investigated the effect of the cortical excitability of mPFC in the decision-making of costly helping behavior. Here, we used tDCS to demonstrate the causal relationship between the cortical excitability of mPFC and costly helping decision-making. Subjects assigned to the anodal, cathodal and sham groups were required to decide whether they would like to cost their own money to relieve another subject (a confederate actually) from painful electrical shocks with a certain probability of success. Results showed that the subjects receiving anodal stimulation acted more prosaically than the subjects receiving cathodal stimulation. And this effect was only significant when the probability of success was high. We proposed that tDCS induced modulation of the cortical excitability, targeting the mPFC, can affect the prosocial propensity in costly helping behavior, and the possible underlying mechanisms were discussed.
