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目的:探讨“作为”与“不作为”两种不同决策行为下,“差”结果引起的大脑电位活动差异。方法:采用事件相关电位技术,让被试进行模拟股票购买操作,记录给予被试“涨”或“跌”反馈结果时的脑部电位。结果:观察到明显的反馈相关负波(feedback related negativity FRN)与P300成分,但未发现“作为”与“不作为”在两个成分上的显著差异,继而对“作为”与“不作为”两种情境下的差异波分析发现,在P300时间窗内,“作为”情境产生了更大的差异波。结论:“作为”与“不作为”两种决策情境导致的“差”结果在FRN时间窗内差异不显著,但P300时间窗内“作为”情境诱发了更大的差异波,这可能与“作为”情境下更多的正性情绪体验相关。
OBJECTIVE: To investigate the difference in brain potential activity caused by the “poor” results under the two different decision-making behaviors of “as” and “not as”. Methods: Using event-related potentiometry, participants were asked to simulate the stock purchase operation and record the brain potentials given to the subjects’ “up” or “down” feedback results. Results: Significant feedback related negativity (FRN) and P300 components were observed, but no significant difference between the two components was found for “as ” and “not as ”, followed by “ An analysis of the differences between the two scenarios of ”and“ ”inaction“ found that in the P300 time window, the larger ”difference“ wave was generated by the ”as“ scenario. Conclusion: The results of ”bad “ caused by ”as “ and ”not as “ are not significant difference in the FRN time window, but induced more in the P300 time window Which may be related to more positive emotional experience in the ”as" context.