摘要
通过"多对对"学习-测试的两阶段实验范型,采用事件相关电位(ERP)技术探讨了顿悟问题(字谜)解决中原型激活促发顿悟的脑内时程动态变化。结果发现,在字谜呈现后的1400 ms内,"有顿悟"与"无顿悟"字谜所诱发的脑电活动基本一致,说明原型字谜的激活可能有自动化加工的趋势;随后,在1400 ms-2500 ms内,"有顿悟"比"无顿悟"字谜诱发出一个更加负性的ERP成分,具体包括:1400-1700 ms(LNC1),1700-2000 ms(LNC2)以及2000-2500 ms(LNC3)。偶极子定位结果显示,LNC1主要起源于左侧额中回附近,可能与关键性启发信息的激活过程有关;LNC2主要起源于左侧额叶,可能主要反映了思维定势的打破以及新异联系的形成过程;而LNC3主要起源于PPC附近,可能与猜中字谜后的情绪体验有关。
High-density event-related potentials （ERPs） were recorded to examine the electrophysiologic correlates of insight problem solving in the two-stage paradigm. The results showed that there was no difference between ERP components elicited by insight riddles and uninsight riddles, which indicated that the activation of prototype riddles might be automatic. Then, insight riddles elicited a more negative ERP deflection than did uninsight riddles in the time window within 1400-1700 ms （LNC1）, 1700-2000 ms （LNC2） and 2000-2500 ms （LNC3） after the onset of the logogriph. Dipole analysis localized the generator of LNC1 near the left Gyms frontalis superior which might be associated with the process of activation of heuristic information, LNC2 in the left frontal cortex which might reflect the proces,s of breaking the mental set and forming novel associations, and LNC3 in the posterior cingulate cortex （PCC） which might be associated with the ＂Aha＂ feeling in the process of insight.
出处
《心理科学》
CSSCI
CSCD
北大核心
2010年第4期900-903,899,共5页
Journal of Psychological Science
基金
西南大学研究生科技创新基金项目(KY2008005)的资助
关键词
字谜
顿悟
原型激活
事什相关电位
logogriph, insight, prototype activation, ERPs （event-related potentials）
