诗句鉴赏过程中的顿悟：来自脑事件相关电位的研究

摘要

With the help of high-density event related potentials ( ERPs) , we investigated the neural mechanism of insight in the process of poetry appreciation based on the riddle-induction paradigm. Re-sults show that 500~700ms after presenting eyes of poems, brain waves of poems that can induce in-sight have a more positive deviance compared with those of poems that cannot. The incubation period of the positive component lasted for 600ms and the peak of difference wave was located on Pz. The topographic map of difference wave shows that poems which can induce insight activated wider areas in parietal and occipital lobes compared with those that cannot. P600 may reflect the semantic integration induced by eyes of poems in the process of poetry appreciation and the subsequent renewal of semantic representation, indicating the specific processing mechanism of insight in this process. We hold that the occurrence of insight is a process of restructuring imagery;that is, restructuring a poem’s represen-tation into a new one.%运用事件相关电位技术,采用猜谜催化范式探讨诗句鉴赏过程中顿悟发生的认知机制。结果发现,在诗眼呈现后的500~700ms内,诱发顿悟诗句较无法诱发顿悟诗句的脑电波形存在一个更加正向的偏移。两类诗句的脑电差异波中,该正成分的潜伏期约为600ms,差异波的脑电峰值位于Pz点,差异波地形图显示诱发顿悟的诗句比无法诱发顿悟的诗句激活了顶部和枕部广泛脑区。P600可能反映了诗句鉴赏过程中诗眼信息促发的语义整合和由此产生的语义表征的更新,标志着诗句顿悟过程的特异性加工机制。我们认为,诗句鉴赏中的顿悟是一个通过意象重组,将诗句的原有表征整合并更新为一个新的表征的过程。