中国神经再生研究(英文版)

中国神经再生研究(英文版) ›› 2013, Vol. 8 ›› Issue (20): 1837-1843.doi: 10.3969/j.issn.1673-5374.2013.20.002

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

加工汉字提手旁时大脑额内侧回被激活

  

  • 收稿日期:2013-02-08 修回日期:2013-05-11 出版日期:2013-07-15 发布日期:2013-07-15

Processing Chinese hand-radicals activates the medial frontal gyrus A functional MRI investigation

Qing-Lin Wu1, Yu-Chen Chan2, Joseph P. Lavallee3, Hsueh-Chin Chen4, Kuo-En Chang5, Yao-Ting Sung4   

  1. 1 Department of Educational Psychology and Counseling, Taiwan Normal University, Taipei, Taiwan, China
    2 Institute of Learning Sciences, Tsing Hua University, Hsinchu, Taiwan, China
    3 School of Education and Applied Linguistics, Ming Chuan University, Taipei, Taiwan, China
    4 Department of Educational Psychology and Counseling, Taiwan Normal University, Taipei, Taiwan, China
    5 Graduate Institute of Information and Computer Education, Taiwan Normal University, Taipei, Taiwan, China
  • Received:2013-02-08 Revised:2013-05-11 Online:2013-07-15 Published:2013-07-15
  • Contact: Hsueh-Chih Chen, Professor, Department of Educational Psychology and Counseling, Taiwan Normal University, Education College Building, Room 612, No. 162, Heping E. Rd., Sec. 1Da-an District, Taipei 10610, Taiwan, China, chcjyh@ntnu.edu.tw
  • About author:Qing-Lin Wu, Studying for doctorate.
  • Supported by:

    中国台北教育部，台北师范大学顶级大学计划

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摘要：

大脑是否对汉字字根单独处理，各学者意见尚不统一。如果是单独处理的，那么大脑处理区是否为感觉运动脑区？研究纳入使用频率较高的72个汉字，将其均分为4类：有和无提手旁的手部动作动词，有和无提手旁的非手部动作动词。28名21-30岁的健康受试者在进行功能MRI检查的同时阅读汉字。发现阅读有提手偏旁的汉字时，大脑右额内侧回被激活。阅读与手部动作有关的动词时，左侧顶下小叶被激活，这可能与提手旁和手部动作动词的相关信息整合有关。研究结论与以往的体验语义理论一致，提出大脑在加工汉字时，字根的神经表征是不可或缺的。

关键词: 神经再生, 神经影像, 功能MRI, 提手旁, 字根表征, 汉字认知, 体现语义, 语义功能, 汉语学习

Abstract:

Embodied semantics theory asserts that the meaning of action-related words is neurally repre-sented through networks that overlap with or are identical to networks involved in sensory-motor processing. While some studies supporting this theory have focused on Chinese characters, less attention has been paid to their semantic radicals. Indeed, there is still disagreement about whether these radicals are processed independently. The present study investigated whether radicals are processed separately and, if so, whether this processing occurs in sensory-motor regions. Materials consisted of 72 high-frequency Chinese characters, with 18 in each of four categories: hand-action verbs with and without hand-radicals, and verbs not related to hand actions, with and without hand-radicals. Twenty-eight participants underwent functional MRI scans while reading the char-acters. Compared to characters without hand-radicals, reading characters with hand-radicals acti-vated the right medial frontal gyrus. Verbs involving hand-action activated the left inferior parietal lobule, possibly reflecting integration of information in the radical with the semantic meaning of the verb. The findings may be consistent with embodied semantics theory and suggest that neural representation of radicals is indispensable in processing Chinese characters.

Key words: neural regeneration, neuroimaging, functional MRI, hand-radical, radical representation, Chinese character recognition, embodied semantics, semantic function, Chinese learning, grants-supported paper, neuroregeneration