Cortical organization for receptive language functions in Chinese, English, and Spanish: a cross-linguistic MEG study
Cortical organization for receptive language functions in Chinese, English, and Spanish: a cross-linguistic MEG study
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DOI：
10.1016/j.neuropsychologia.2003.11.019
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发表时间：
2004-01-01
期刊：
影响因子：
2.6
通讯作者：
Papanicolaou, AC
中科院分区：
文献类型：
--
作者：
Valaki, CE;Maestu, F;Papanicolaou, AC
汉语与印欧语系的语言在书面和口头形式上都有所不同。声调是一种声调语言，它传递词汇意义信息。目前的研究探讨了两种印欧语言（西班牙语和英语）和普通话-中国的发言者的颞叶和颞顶叶脑区的神经生理活动的模式进行了一个口语单词识别任务，临床上用于术前确定半球优势接受语言功能。从92名健康成年志愿者中获得了脑磁激活谱：30名母语为汉语普通话的单语者，20名母语为西班牙语的人和42名母语为美国英语的人。使用相同的测试方法，在两个不同的全头MEG系统中采集激活扫描。结果表明：（a）在中国组中，颞叶和颞顶区神经生理活动持续时间的半球不对称程度降低;（B）在该组中，双侧对称激活的个体比例显著较高;（c）功能性半球不对称的组间差异首先出现在对文字刺激的初始感觉加工之后。此外，半球不对称程度的组间差异主要是由于在中国组中右颞顶区的激活程度更高，这表明该区域在普通话-汉语口语单词识别中的参与增加。(C)2004年爱思唯尔有限公司保留所有战斗。
Chinese differs from Indo-European languages in both its written and spoken forms. Being a tonal language, tones convey lexically meaningful information. The current study examines patterns of neurophysiological activity in temporal and temporoparietal brain areas as speakers of two Indo-European languages (Spanish and English) and speakers of Mandarin-Chinese were engaged in a spoken-word recognition task that is used clinically for the presurgical determination of hemispheric dominace for receptive language functions. Brain magnetic activation profiles were obtained from 92 healthy adult volunteers: 30 monolingual native speakers of Mandarin-Chinese, 20 Spanish-speaking, and 42 native speakers of American English. Activation scans were acquired in two different whole-head MEG systems using identical testing methods. Results indicate that (a) the degree of hemispheric asymmetry in the duration of neurophysiological activity in temporal and temporoparietal regions was reduced in the Chinese group, (b) the proportion of individuals who showed bilaterally symmetric activation was significantly higher in this group, and (c) group differences in functional hemispheric asymmetry were first noted after the initial sensory processing of the word stimuli. Furthermore, group differences in the degree of hemispheric asymmetry were primarily due to greater degree of activation in the right temporoparietal region in the Chinese group, suggesting increased participation of this region in the spoken word recognition in Mandarin-Chinese. (C) 2004 Elsevier Ltd. All fights reserved.