The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and FMRI

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	The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and FMRI
	Wu, Lili; Knoblich, Guenther; Luo, Jing
刊名	HUMAN BRAIN MAPPING
	2013
卷号	34 期号:5 页码:1173-1186
关键词	insight problem solving multiple difficulties ERP fMRI inhibition representation change
ISSN号	1065-9471
通讯作者	Luo, J (reprint author), Capital Normal Univ, Dept Psychol, Coll Educ, Beijing 100089, Peoples R China.
产权排序	1,5
英文摘要	Multiple factors of task difficulty keep problem solvers from finding the crucial thinking steps required to solve insight problems. In this study, we distinguished two difficulty factors, chunk familiarity and chunk tightness, and investigated their effects on chunk decompositiona specific type of insight that depends on the process of breaking up perceptual patterns or chunks into elements so that they can be reorganized to form a new meaning. Subjects solved problems that required decomposing Chinese characters that differed in chunk familiarity and chunk tightness. Brain activity was recorded using the electroencephalogram and functional magnetic resonance imaging. The results showed that chunk familiarity could be overcome through an inhibition of familiar meanings, whereas overcoming chunk tightness required visual-spatial processing. Furthermore, chunk familiarity posed an additional difficulty when chunk tightness was high. This result demonstrates that the difficulty sources in a problem do not always simply add up. Rather, the difficulty of a problem can reside in the interaction of particular sources of difficulty. Hum Brain Mapp, 2013. (c) 2012 Wiley Periodicals, Inc.
学科主题	Social psychology
收录类别	SCI
项目简介	Contract grant sponsor: National Natural Science Foundation of China; Contract grant number: 30770708 and 30970890; Contract grant sponsor: Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences; Contract grant number: Y0CX363S01; Contract grant sponsor: National Basic Research Program of China; Contract grant number: 2010CB833904.
原文出处	http://onlinelibrary.wiley.com/doi/10.1002/hbm.21501/pdf
语种	英语
WOS记录号	WOS:000317297500014
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/10635]
专题	心理研究所_中国科学院行为科学重点实验室
作者单位	Luo, J (reprint author), Capital Normal Univ, Dept Psychol, Coll Educ, Beijing 100089, Peoples R China.
推荐引用方式 GB/T 7714	Wu, Lili,Knoblich, Guenther,Luo, Jing. The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and FMRI[J]. HUMAN BRAIN MAPPING,2013,34(5):1173-1186.
APA	Wu, Lili,Knoblich, Guenther,&Luo, Jing.(2013).The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and FMRI.HUMAN BRAIN MAPPING,34(5),1173-1186.
MLA	Wu, Lili,et al."The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and FMRI".HUMAN BRAIN MAPPING 34.5(2013):1173-1186.