Analyzing the influence of emotion on false memory through electroencephalogram is helpful to further explore the cognition function of brain. In this study, we improved the Deese-Roediger-McDermott paradigm experiment to study the false memory. The memory materials are combined with mixed emotions, which are closer to real life. Twenty-eight participants were randomly divided into positive group and negative group. We used music to induce the participants in the positive group and the negative group to generate corresponding emotions. Finally, we analyzed the difference between the positive group and the negative group from the behavior data, source location and cortex functional network of event related potential. The results of behavioral data analysis show that the false memory rate of positive group (85%) is significantly higher than that of negative group (72%). The results of source localization show that the brain of the positive group is more active than that of the negative group, and the difference of brain activation location between the two groups is mainly manifested in the BA24 and BA45 brain regions. The results of cortex functional network show that the node degree, clustering coefficient, global efficiency and small-world property of the positive group are significantly higher than those of the negative group. It can be found from the three aspects that participants' emotional state and brain's understanding of semantic are the main reasons for the difference in the incidence of false memory between the two groups.

中文翻译：

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基于脑电信号分析的正，负情绪对错误记忆的影响

通过脑电图分析情绪对虚假记忆的影响，有助于进一步探索大脑的认知功能。在这项研究中，我们改进了Deese-Roediger-McDermott范式实验，以研究错误记忆。记忆材料结合了混合情感，更接近现实生活。28名参与者随机分为阳性组和阴性组。我们使用音乐来诱使积极组和消极组的参与者产生相应的情绪。最后，我们从行为数据，事件相关电位的来源位置和皮层功能网络分析了阳性组和阴性组之间的差异。行为数据分析结果显示，阳性组的假记忆率（85％）明显高于阴性组的假记忆率（72％）。来源定位的结果表明，阳性组的大脑比阴性组的大脑更活跃，并且两组之间的大脑激活位置的差异主要表现在BA24和BA45大脑区域。皮质功能网络的结果表明，阳性组的节点度，聚类系数，整体效率和小世界特性显着高于阴性组。从三个方面可以发现，参与者的情绪状态和大脑对语义的理解是造成两组假记忆发生率差异的主要原因。