Ma Qingguo, Hu Yue, Pei Guanxiong, Xiang Ting
School of Management, Zhejiang University, Yuhangtang Road 388, Hangzhou 310058, China; Neuromanagement Lab, Zhejiang University, Zheda Road 38, Hangzhou 310027, China.
School of Management, Zhejiang University, Yuhangtang Road 388, Hangzhou 310058, China; Neuromanagement Lab, Zhejiang University, Zheda Road 38, Hangzhou 310027, China.
Neurosci Lett. 2015 Oct 8;606:77-81. doi: 10.1016/j.neulet.2015.08.048. Epub 2015 Aug 28.
Recent studies have accumulated evidences that merely reminding people of money could lead to behavioral changes including alleviating both physical pain and social distress. However, the underlying neural mechanism regarding such pain-buffering effect of money is not clear. In this paper, we applied event-related potentials (ERP) to investigate the neural effect of money reminders on induced negative emotions. Subjects were first primed of money images and subsequently viewing unpleasant pictures, while EEG was recorded. Behavioral results suggested a reduced sensitivity to unpleasant pictures after participants being reminded of money. ERP data showed that money priming, compared to neutral priming, generated a larger N2 in frontal and posterior areas, reflecting an endogenous mental conflict and the recruitment of attention resources, and a smaller late positive potential (LPP) in parietal and occipital regions, indicating a regulating process of negative emotions. Additionally, how brain responded to money and neutral stimuli were also examined, indexed by "N170-P2" complex. This study provided additional neurophysiological evidences to support previous behavioral researches on money priming and discussed the two separated neural dynamic stages involved in emotion regulation.
最近的研究积累了证据表明，仅仅提醒人们金钱就可能导致行为变化，包括减轻身体疼痛和社会痛苦。然而，关于金钱这种疼痛缓冲效应的潜在神经机制尚不清楚。在本文中，我们应用事件相关电位（ERP）来研究金钱提醒对诱发负面情绪的神经效应。首先让受试者接触金钱图像，随后观看不愉快的图片，同时记录脑电图。行为结果表明，在参与者被提醒金钱后，对不愉快图片的敏感度降低。ERP数据显示，与中性启动相比，金钱启动在额叶和后部区域产生更大的N2，反映出内源性心理冲突和注意力资源的募集，在顶叶和枕叶区域产生更小的晚期正电位（LPP），表明负面情绪的调节过程。此外，还通过“N170 - P2”复合体研究了大脑对金钱和中性刺激的反应方式。本研究提供了额外的神经生理学证据来支持先前关于金钱启动的行为研究，并讨论了情绪调节中涉及的两个分离的神经动态阶段。
