Yan Chunping, Li Yunyun, Zhang Qin, Cui Lixia
Learning and Cognition Key Laboratory of Beijing, Department of Psychology, Capital Normal University, Beijing.
Department of Psychology, Xinxiang Medical University, Xinxiang, China.
Neuroreport. 2018 Mar 7;29(4):259-265. doi: 10.1097/WNR.0000000000000932.
Previous studies have suggested that the effects of reward on memory processes are affected by certain factors, but it remains unclear whether the effects of reward at retrieval on recognition processes are influenced by emotion. The event-related potential was used to investigate the combined effect of reward and emotion on memory retrieval and its neural mechanism. The behavioral results indicated that the reward at retrieval improved recognition performance under positive and negative emotional conditions. The event-related potential results indicated that there were significant interactions between the reward and emotion in the average amplitude during recognition, and the significant reward effects from the frontal to parietal brain areas appeared at 130-800 ms for positive pictures and at 190-800 ms for negative pictures, but there were no significant reward effects of neutral pictures; the reward effect of positive items appeared relatively earlier, starting at 130 ms, and that of negative pictures began at 190 ms. These results indicate that monetary incentives at retrieval promote recognition of involuntarily learned emotional information.
先前的研究表明，奖励对记忆过程的影响受某些因素影响，但检索时奖励对识别过程的影响是否受情绪影响仍不清楚。采用事件相关电位来研究奖励和情绪对记忆检索的联合作用及其神经机制。行为结果表明，检索时的奖励在积极和消极情绪条件下均提高了识别表现。事件相关电位结果表明，识别过程中平均波幅上奖励与情绪之间存在显著交互作用，对于积极图片，从额叶到顶叶脑区在130 - 800毫秒出现显著的奖励效应，对于消极图片在190 - 800毫秒出现显著的奖励效应，但中性图片没有显著的奖励效应；积极项目的奖励效应出现相对较早，从130毫秒开始，消极图片的奖励效应从190毫秒开始。这些结果表明，检索时的金钱激励促进了对非自愿学习的情绪信息的识别。
