Transcranial Direct Current Stimulation of the Medial Prefrontal Cortex Affects Judgments of Moral Violations.

Transcranial Direct Current Stimulation of the Medial Prefrontal Cortex Affects Judgments of Moral Violations.
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经颅直流电刺激内侧前额叶皮层影响道德违规判断

DOI:
10.3389/fpsyg.2017.01812
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发表时间:
2017
影响因子:
3.8
通讯作者:
Lei X
Lei X
中科院分区:
心理学3区
文献类型:
--
作者:
Yuan H;Tabarak S;Su W;Liu Y;Yu J;Lei X

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先前的研究表明,在图片观看任务中,内侧前额叶皮层(mPFC)的神经活动与道德加工相关。在这项研究中,我们应用经颅直流电刺激(tDCS),以确定这种非侵入性脑刺激技术是否可以调节道德违规的评价。64名受试者被随机招募,分成不同的小组,并使用42对描述道德违规的图片进行测试。要求每个受试者对图片进行两次单独的评分,即,在tDCS干预前后。我们发现,阳极tDCS(atDCS)增加皮质兴奋性的mPFC(Fpz和Fp1的位置之间),以及道德感和情感唤起的主题。总之,本研究表明,mPFC在道德判断中起着重要的作用,同时调节tDCS干预条件下的道德违规评级。
Previous studies show that neural activities in the medial prefrontal cortex (mPFC) are correlated with moral processing during picture viewing tasks. In this study, we applied transcranial direct current stimulation (tDCS) to determine whether this non-invasive brain stimulation technique could modulate the evaluation of moral violations. Sixty-four subjects were randomly recruited, separated into different groups and tested with 42 pairs of pictures depicting moral violations. Each subject was required to rate the pictures two separate times, i.e., before and after tDCS intervention. We found that anodal tDCS (atDCS) increases cortical excitability over the mPFC (between the Fpz and Fp1 positions) as well as the sense of morality and emotional arousal of the subjects. In conclusion, this study indicated that the mPFC plays an important role in moral judgments while modulating ratings of moral violations under tDCS intervention conditions.
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