语言熟悉性对汉语和英语神经认知模式 影响的功能磁共振成像研究  

Effect of language proficiency on neuro-cognitive model in Chinese-English language perception ： a func-tional magnetic resonance imaging study

作　　者：郝贵峰[1] 张志珺[2] 姚志剑[3] 史家波[3] 

机构地区：[1]山东大学附属临沂市人民医院心理科,临沂276003 [2]东南大学附属中大医院神经内科,神经精神医学研究所 [3]南京医科大学附属南京脑科医院精神科

出　　处：《中华行为医学与脑科学杂志》2013年第12期1077-1079,共3页Chinese Journal of Behavioral Medicine and Brain Science

基　　金：国家自然科学基金资助项目（30370519）

摘　　要：目的应用组块设计功能磁共振成像技术，分析语言熟悉性对汉英＇’晚双语者n两种语言神 经认知模式异同影响的重要性。方法利用1.5T磁共振成像系统扫描13名中国汉族成年健康男性“晚双 语者”，同时给予预先录制编辑的中英文声音刺激，并通过反馈系统实时记录反应结果。应用基于Matlab 平台的SPM2 （Statistical Parametric Mapping）软件处理、分析功能成像数据。结果熟悉声音比较，汉语较 英语在右颞上回显著激活，英语较汉语在左楔前叶、额中回和左后扣带回显著激活;不熟悉声音比较，汉语 较英语在右颞中回和右额叶显著激活，英语较汉语在右额下回、额中回和左颞中回显著激活。结论语言 熟悉性在听力水平上可能是影响双语者两种语言神经认知方式异同的关键因素。Objective To explore the significance of language proficiency in bilingual perception in Chi-nese-English late bilingual subjects with block-design functional magnetic resonance imaging （ bfMRI）. Method- s Thirteen right-handed Chinese Han healthy male late bilinguists who had limited English proficiency were scanned while listening to short sentences in Chinese and English. Based on blood oxygenation level-dependent （BOLD） signal efficacy,functional images were collected using a 1.5-T MRI. Statistical parametric mapping 2 （SPM2） was used to analyze the data of functional images （尸〈0.001,KE〉 100） . Results For Chinese familiar voices, more significant activation was observed in the right superior temporal gyrus than that for English familiar voices. On the contrary,more significant activations for English familiar voices were observed in the left precuneus, middle frontal gyrus and left posterior cingulate cortex compared with that for Chinese familiar voices. For Chinese unfamiliar voices,more significant activations were observed in the right middle temporal gyrus and right medial frontal gyrus than that for English unfamiliar voices. In contrast, more significant activations by English unfamiliar voices were observed in the right inferior frontal gyrus, middle frontal gyrus and left middle temporal gyrus com-pared with that for Chinese unfamiliar voices. Conclusion Language proficiency may play an important role in different language perception from auditory level.

关 键 词：语言熟悉性 组块设计 功能核磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]