顿悟式组块破解的时间进程：ERP研究  

The Time Course of Chunk Decomposition: An ERP Study

作　　者：张忠炉[1,2,3] 邢强 雷怡[2] 李红[2] Zhang Zhonglu;Xing Qiang;Lei Yi;Li Hong(Department of Psychology,School of Education,Guangzhou University,Guangzhou,510006;Research Centre for Brain Function and Psychological Science,Shenzhen University,Shenzhen,518060;Research Center of Brain and Cognitive Neuroscience,Liaoning Normal University,Dalian,116029)

机构地区：[1]广州大学教育学院心理系,广州510006 [2]深圳大学脑功能与心理科学研究中心,深圳518060 [3]辽宁师范大学脑与认知神经科学研究中心,大连116029

出　　处：《心理科学》2019年第5期1026-1032,共7页Journal of Psychological Science

基　　金：教育部人文社会科学研究青年基金项目(18YJC190033);国家自然科学基金(31571153,31571144,31671150);广东省普通高校创新团队建设项目(2015KCXTD009);深圳市基础研究布局项目(JCYJ20150729104249783);广东教育科学十二五规划(1201421342);深圳孔雀团队计划(KQTD2015033016104926);广东省珠江学者创新团队项目(2016ZT06S220)支持的资助

摘　　要：本研究旨在探讨顿悟式组块破解的信息加工机制及神经动态变化。被试完成汉字拆解任务,即从一个源汉字中移动部件从而得到有效汉字。研究操纵部件之间在空间交错背景下的类别关系:同类(移动部件和剩余部件都是汉字)和异类(移动部件是笔画,剩余部件是汉字)。与此同时记录事件相关电位变化。结果显示,同类条件比异类条件引发了更大的N2波动和减小的LPC波动。早期的N2效应可能提示了组块破解过程中的识别困难,而晚期的LPC效应可能提示了组块破解过程中的知觉转换困难。Chunk decomposition is a critical mechanism of insight problem solving and creative thinking.It refers to decomposing a holistic perceptual chunk into its components in order to create new products or reorganization.Previous studies mainly investigated the neuro-cognitive mechanism of chunk decomposition related to the element-type-based chunk tightness,less is known on the neural correlates of insightful chunk decomposition associated with chunk tightness based on spatial intersecting relationship.The current study aimed to investigate the cognitive processing mechanism and the neural dynamics of insightful chunk decomposition by using the event-related potentials(ERPs)technique of high temporal resolution in a Chinese character decomposition task.Twenty-four volunteers(11 female;20.29±1.78)participated in this study.All of them were native Chinese,right-handed,and had normal and correct-to-normal vision.They reported no history of brain damage or psychiatry.Participants were asked to complete a character decomposition task in which they removed strokes or a character from a source character for getting a valid character.Two conditions were manipulated and compared according to the category relationship between the probe(the to-be-removed part)and the target(the left part).In the condition of same category,the to-be-removed part and the left part were both characters.In the condition of different categories,the to-be-removed part were strokes and the left part was a character.More critically,to ensure character decomposition occurred in an insightful way,we kept the to-be-removed part(strokes or a character)and the left part(a character)in a spatially intersecting relationship in the to-be-decomposed chunk.Meanwhile,ERPs were recorded after the onset of the source character when chunk decomposition occurred.We hypothesized that the condition of same category(vs.different categories)would induce greater perceptual conflict in the two stages of insightful chunk decomposition where the to-be-removed part(a probe)a

关 键 词：顿悟式组块破解 空间交错 知觉干扰 汉字 事件相关电位 

分 类 号：G63[文化科学—教育学]