Abstract
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.
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