第二外语读音处理时脑活动差异的功能性磁共振成像研究

摘要

We studied that the bilingual subjects in Chinese and Japanese phonological judgment brain activity difference problem and we found that the difference brain regions in Chinese-Japanese bilingual. We used Chinese-Japanese bilin-gual subjects,using Chinese phonological judgment and Japanese phonological judgment tasks implemented in the study of functional magnetic resonance imaging. Using functional magnetic resonance imaging (fMRI) is different in judging the Japanese phonological and Chinese phonological tasks in brain activation,and the results of second language phono-logical processing different brain regions. The results showed that Chinese-Japanese bilingual subjects between Japanese phonological and Chinese phonological processing differences brain activities,mainly brain areas include:the right frontal gyrus (BA44/45),right temporal lobe (BA7/40),the left fusiform gyrus (BA37).%实验针对双语被试在进行中文和日语读音判断任务时脑活动差异的问题展开研究，发现了二者差异性脑区。利用中-日双语被试，使用中文读音判断和日文读音判断两种实验任务，实施了功能性磁共振研究。通过功能性磁共振成像（fMRI）技术，比较被试在判断日文读音和中文读音任务中不同的脑激活情况，进而得到第二外语读音处理的差异性脑区。结果表明中-日双语被试在进行日语读音处理和中文读音处理时脑活动之间存在差异，主要集中在以下脑区：右侧额叶下回（BA44/45），右侧颞叶（BA7/40），左侧纺锤状回（BA37）。