Speaking words in two languages with one brain: Neural overlap and dissociation

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	Speaking words in two languages with one brain: Neural overlap and dissociation
	Liu, Hongyan 1; Hu, Zhiguo 2; Guo, Taomei 1; Peng, Danling 1
摘要	The present study investigated the neural overlap and dissociation underlying overt word production in the first language (L1) and second language (L2). Twenty-four Chinese-English bilinguals named pictures in either L1 or L2 while being scanned with functional magnetic resonance imaging (fMRI). When comparing picture naming in L2 to naming in L1, increased activity in the left inferior frontal gyrus, bilateral supplementary motor areas (SMA), left precentral gyrus, left lingual gyrus, left cuneus, bilateral putamen, bilateral globus pallidus, bilateral caudate and bilateral cerebellum were observed. This suggested that word production in L2 is less automatic and needs to recruit more neural resources for lexical retrieval, articulatory processing and cognitive control than in L1. In contrast, picture naming in L1 relative to picture naming in L2 revealed increased activity in the right putamen and right globus pallidus probably due to different phonological features between Chinese and English. In addition, the conjunction analysis, for the first time, revealed the common neural correlates underlying picture naming in L1 and L2. (C) 2009 Elsevier B.V. All rights reserved.
关键词	Bilingualism Word production Neural basis fMRI
	2010-02-26
语种	英语
发表期刊	BRAIN RESEARCH
ISSN	0006-8993
卷号	1316 页码:75-82
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000275136200008
引用统计	被引频次：57[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/13702
专题	中国科学院心理研究所回溯数据库(1956-2010)
作者单位	1.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hongyan,Hu, Zhiguo,Guo, Taomei,et al. Speaking words in two languages with one brain: Neural overlap and dissociation[J]. BRAIN RESEARCH,2010,1316:75-82.
APA	Liu, Hongyan,Hu, Zhiguo,Guo, Taomei,&Peng, Danling.(2010).Speaking words in two languages with one brain: Neural overlap and dissociation.BRAIN RESEARCH,1316,75-82.
MLA	Liu, Hongyan,et al."Speaking words in two languages with one brain: Neural overlap and dissociation".BRAIN RESEARCH 1316(2010):75-82.