CAJ | 학술논문

目的探索母语为维吾尔语(维语)和汉语健康人在执行语义辨别和动词产生两种语言任务时的脑激活差异区,并初步探讨维语脑加工处理机制.方法采用血氧水平依赖性功能磁共振成像(BOLD-fMRI)技术,采集15例维吾尔语健康志愿者(维语组)和15例汉语健康志愿者(汉语组)执行语义辨别和动词产生两种语言任务时的fMRI数据,并进行2组数据统计学比较.结果语义辨别任务时,维语组左侧扣带回(BA23)和中线处楔前叶等局部脑区可见明显的正激活,与汉语组相比,差异有统计学意义(P＜0.05).动词产生任务时,维语组左侧颞下回(BA37)、顶下小叶、梭状回和海马旁回等局部脑区可见明显激活,与汉语组相比,差异有统计学意义(P＜0.05);汉语组则在右侧颞上回(BA38)可见明显的激活,与维语组相比,差异有统计学意义(P＜0.05).结论维语和汉语语义辨别和动词产生激活脑区不完全相同,左侧扣带回在维语语义加工中可能更多参与语音加工;汉字加工处理可能比维文加工有更多的右半球参与.
목적 탐색모어위유오이어(유어)화한어건강인재집행어의변별화동사산생량충어언임무시적뇌격활차이구,병초보탐토유어뇌가공처리궤제.방법 채용혈양수평의뢰성공능자공진성상(BOLD-fMRI)기술,채집15례유오이어건강지원자(유어조)화15례한어건강지원자(한어조)집행어의변별화동사산생량충어언임무시적fMRI수거,병진행2조수거통계학비교.결과 어의변별임무시,유어조좌측구대회(BA23)화중선처설전협등국부뇌구가견명현적정격활,여한어조상비,차이유통계학의의(P＜0.05).동사산생임무시,유어조좌측섭하회(BA37)、정하소협、사상회화해마방회등국부뇌구가견명현격활,여한어조상비,차이유통계학의의(P＜0.05);한어조칙재우측섭상회(BA38)가견명현적격활,여유어조상비,차이유통계학의의(P＜0.05).결론 유어화한어어의변별화동사산생격활뇌구불완전상동,좌측구대회재유어어의가공중가능경다삼여어음가공;한자가공처리가능비유문가공유경다적우반구삼여.
Objective To observe the difference in activated brain regions when speaking Mandarin and Uyghur.Methods Blood oxygenation level dependent magnetic resonance imaging (BOLD-fMRI) was used to scan the brains of 30 healthy,right handed volunteers-15 native Uyghur speakers and 15 native Mandarin speakers-while they performed semantic identification and verb generation tasks.The fMRI data were used to generate statistical parametric maps of the brain areas activated by each task.Results In the semantic identification task the left anterior cingulate gyrus (BA23) and the midline mesophyll wedge were activated significantly more strongly in the Uyghur group compared with the Mandarin speakers.In the verb generation task the left inferior temporal gyrus (BA37),the inferior parietal lobule,the fusiform gyrus and the parahippocampal gyrus in the Uyghur group were all significantly more active.The right superior temporal gyrus (BA38) in the Mandarin group was significantly more active during verb generation than among the Uyghur speakers.Conclusions The brain regions activated during semantic processing and verb generation differ when speaking Uyghur and Mandarin.The cingulate gyrus and the praecuneus are more involved in Uyghur-language semantic processing,especially the left anterior cingulate gyrus.The right hemisphere is more important in Mandarin processing than in Uyghur.