How perceptual processes help to generate new meaning: An EEG study of chunk decomposition in Chinese characters
文献类型：期刊论文
| 作者 | Wu, Lili1 ; Knoblich, Guenther2; Wei, Gaoxia1; Luo, Jing1; J. Luo
|
| 刊名 | BRAIN RESEARCH
 |
| 出版日期 | 2009-10-16 |
| 卷号 | 1296页码:104-112 |
| 关键词 | Insight problem solving Chunk decomposition Alpha rhythm Parietal-occipital area |
| ISSN号 | 0006-8993 |
| 文献子类 | Article |
| 英文摘要 | Chunk decomposition has been regarded as an important process in problem solving that helps problem solvers to generate new solution paths through changing inappropriate problem representations. We studied the neural bases of chunk decomposition in Chinese characters using the electroencephalogram (EEG). Participants decomposed Chinese characters either at the level of radicals or at the level of strokes to generate new target characters with a different meaning. We hypothesized that decomposition at the stroke levei would require a more fundamental change in the problem representation that should involve differences in basic visual processing. To test this hypothesis, we compared the alpha rhythm (8-13 Hz) over parietal-occipital regions between the two different conditions. The regrouping of tight chunks (stroke level) exhibited a stronger alpha activation than the regrouping of loose chunks approximately 500 ms prior to response. Thus visual areas were less active during the decomposition of tight chunks. Together with a previous fMRI study the results provide convincing evidence that attenuation of early visual information is required to generate new meaning.; Chunk decomposition has been regarded as an important process in problem solving that helps problem solvers to generate new solution paths through changing inappropriate problem representations. We studied the neural bases of chunk decomposition in Chinese characters using the electroencephalogram (EEG). Participants decomposed Chinese characters either at the level of radicals or at the level of strokes to generate new target characters with a different meaning. We hypothesized that decomposition at the stroke levei would require a more fundamental change in the problem representation that should involve differences in basic visual processing. To test this hypothesis, we compared the alpha rhythm (8-13 Hz) over parietal-occipital regions between the two different conditions. The regrouping of tight chunks (stroke level) exhibited a stronger alpha activation than the regrouping of loose chunks approximately 500 ms prior to response. Thus visual areas were less active during the decomposition of tight chunks. Together with a previous fMRI study the results provide convincing evidence that attenuation of early visual information is required to generate new meaning. (C) 2009 Elsevier B.V. All rights reserved. |
| 学科主题 | 认知神经科学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000271168600011 |
| 公开日期 | 2011-08-22 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/5455]  |
| 专题 | 心理研究所_中国科学院心理研究所回溯数据库(1956-2010) |
| 通讯作者 | J. Luo |
| 作者单位 | 1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China 2.Radboud Univ Nijmegen, Donders Inst Brain Cognit & Behav, Ctr Cognit, Nijmegen, Netherlands |
| 推荐引用方式 GB/T 7714 | Wu, Lili,Knoblich, Guenther,Wei, Gaoxia,et al. How perceptual processes help to generate new meaning: An EEG study of chunk decomposition in Chinese characters[J]. BRAIN RESEARCH,2009,1296:104-112. |
| APA | Wu, Lili,Knoblich, Guenther,Wei, Gaoxia,Luo, Jing,&J. Luo.(2009).How perceptual processes help to generate new meaning: An EEG study of chunk decomposition in Chinese characters.BRAIN RESEARCH,1296,104-112. |
| MLA | Wu, Lili,et al."How perceptual processes help to generate new meaning: An EEG study of chunk decomposition in Chinese characters".BRAIN RESEARCH 1296(2009):104-112. |
入库方式： OAI收割
来源：心理研究所
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