Neural mechanisms underlying semantic and orthographic processing in Chinese-English bilinguals

被引:63
作者
Ding, GS
Perry, C
Peng, DL [1 ]
Ma, L
Li, DJ
Xu, SY
Luo, Q
Xu, D
Yang, J
机构
[1] Beijing Normal Univ, Dept Psychol, Beijing 100875, Peoples R China
[2] Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
关键词
bilinguals; neural mechanism; orthographic processing; right hemisphere; semantic processing;
D O I
10.1097/00001756-200308260-00003
中图分类号
Q189 [神经科学];
学科分类号
071006 [神经生物学];
摘要
Brain activation underlying language processing in Chinese-English bilinguals was examined using fMRI in an orthographic search and a semantic classification task. In both tasks, brain areas activated by Chinese characters and English words were very similar to tasks examining Chinese reading using Chinese pinyin (an alphabetic Chinese script) and Chinese characters. However, the degree of lateralization was different, with English words (second language) causing much more right hemisphere activation than Chinese characters (native language). These differences support the hypothesis that second language usage causes more right hemisphere activation than native language usage.
引用
收藏
页码:1557 / 1562
页数:6
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