Chen Wanting, Zhang Shuyue, Turel Ofir, Peng Youqing, Chen Hong, He Qinghua
Faculty of Psychology, Southwest University, Chongqing, China.
Faculty of Education, Guangxi Normal University, Guangxi Colleges and Universities Key Laboratory of Cognitive Neuroscience and Applied Psychology, Guilin, Guangxi, China.
Behav Brain Res. 2019 Apr 1;361:104-112. doi: 10.1016/j.bbr.2018.12.040. Epub 2018 Dec 21.
Social norms are a common motivator or de-motivator of behavior through the need of humans to comply with acceptable behaviors of their social groups. Converging evidence from functional neuroimaging and noninvasive brain stimulation studies suggest that the right dorsolateral prefrontal cortex (rDLPFC) is involved in social norm compliance. Extending this view, we suggest that rDLPFC may not act uniformly when men and women face different types of fairness norm compliance situations, and that there may be a sequential update of norm compliance after experiencing punishment. Using High-Definition Transcranial Direct Current Stimulation (HD-tDCS) on 100 participants playing a sequence of economic game trials, the current study showed that (1) the right dorsolateral prefrontal cortex (rDLPFC) is involved in both voluntary and sanction-induced fairness norm compliance, (2) it has an opposite role in the two types of compliance, (3) there are sex-based differences in rDLPFC roles in fairness norm compliance, and (4) post-punishment fairness compliance is reduced compared to baseline.
社会规范是行为的常见激励因素或抑制因素，这是因为人类有遵守其社会群体可接受行为的需求。来自功能性神经成像和非侵入性脑刺激研究的越来越多的证据表明，右侧背外侧前额叶皮层（rDLPFC）参与社会规范的遵守。进一步拓展这一观点，我们认为，当男性和女性面对不同类型的公平规范遵守情况时，rDLPFC的作用可能并不一致，而且在经历惩罚后，规范遵守可能会有一个顺序性的更新。通过对100名参与一系列经济博弈试验的参与者使用高清经颅直流电刺激（HD-tDCS），本研究表明：（1）右侧背外侧前额叶皮层（rDLPFC）参与自愿和制裁诱导的公平规范遵守；（2）它在这两种遵守类型中发挥相反的作用；（3）rDLPFC在公平规范遵守中的作用存在性别差异；（4）与基线相比，惩罚后的公平遵守有所减少。
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