| 董宗旺,董国珍,于薇,翟洪昌,张兆琪,翁旭初.汉语单词加工方式对脑功能偏侧化的影响[J].中国医学影像技术,2005,21(9):1321~1323 |
| 汉语单词加工方式对脑功能偏侧化的影响 |
| The effect of differential process on the degree of lateralizationduring Chinese language processing |
| 投稿时间：2005-06-13 修订日期：2005-08-22 |
| DOI： |
| 中文关键词: 磁共振成像,功能性 偏侧化 词汇命名 动词产生 |
| 英文关键词:Magnetic resonance imaging, functional Lateralization Word naming Verb generation |
| 基金项目:国家自然科学基金资助(30170325,30128005,30425008)。 |
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| 中文摘要: |
| 目的 探讨汉语不同加工方式对脑功能偏侧化的影响。从而更加系统的了解汉语加工的偏侧化机制。方法 13名被试在磁共振扫描过程中对48个汉语双字名词分别进行词汇命名和动词产生反应通过ANOVA分析的到每种任务的平均脑激活图对激活的结果进行定量分析计算不同脑区的偏侧化指数。结果 词汇命名任务的激活更倾向于双侧化分布。而动词产生任务时的额叶和颞叶激活则呈现明显的左侧化顶叶和枕叶的激活右半球占优势。结论 本实验通过改变任务从不同角度考察了被试对同一刺激材料的脑激活模式从而为认识汉语加工的一侧化机制提供了更为完整的实验数据。 |
| 英文摘要: |
| Objective To investigate the effect of differential process on the degree of language lateralization and to develop a more reliable analysis of Chinese language processing. Methods Thirteen subjects performed 48 Chinese characters reading and verb generation tasks during scanning, respectively. A repeated-measures analysis of variance (ANOVA) was used to get the average active map of naming and generation. So the lateralization was computed in naming and generation processing, respectively. Results The activation pattern for word naming was bilateral and that for verb generation was mainly left lateralized. Conclusion Varying the cognitive commands while keeping the stimuli constant across task provided the powerful evidence to understand how the change on the lateralization of Chinese character processing. |
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