Spatiotemporal distribution of cortical processing of first and second languages in bilinguals. II. Effects of phonologic and semantic priming.
Spatiotemporal distribution of cortical processing of first and second languages in bilinguals. II. Effects of phonologic and semantic priming.
复制标题
双语者第一语言和第二语言皮质处理的时空分布。
DOI：
10.1002/hbm.22109
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发表时间：
2013
影响因子：
4.8
通讯作者：
Starr,Arnold
中科院分区：
文献类型：
--
作者：
Pratt,Hillel;Abbasi,DalalAbu-Amneh;Bleich,Naomi;Mittelman,Nomi;Starr,Arnold
本研究确定了语音和语义对第一和第二语言（混合对）中一对词中第二个词的皮层活动分布的影响。两种语言的相对熟练程度和语言环境（单语或混合）的影响报告在一个配套文件。10名早期双语者和14名晚期双语者听了阿拉伯语（L1）和希伯来语（L2）的混合词对，并指出这两个词对中的两个词是否具有相同或不同的含义。估计每种语言的事件相关电位电流密度的时空分布，并根据语义和语音关系（相同或不同）与成对中的第一个词进行比较。在早期加工过程中（<300 ms），颞叶和颞顶听觉区的大脑活动被成对词之间的语音不一致所增强，而韦尼克区的大脑活动则被语音和语义启动所增强。相比之下，在后期处理（>300 ms）的大脑活动增强了两个词之间的语义不一致，特别是在颞区和左半球布罗卡区和韦尼克区。当词在L2中时，后者的差异更大。令人惊讶的是，相对熟练度对第二个词的加工没有显着影响。这些结果表明，双语呈现的两个词中的第二个词的大脑活动分布在早期和晚期加工过程中受到语义和语音启动的不同影响。《脑地图》34：2882-2898，2013年。© 2012 Wiley Periodicals，Inc.
This study determined the effects of phonology and semantics on the distribution of cortical activity to the second of a pair of words in first and second language (mixed pairs). The effects of relative proficiency in the two languages and linguistic setting (monolinguistic or mixed) are reported in a companion paper. Ten early bilinguals and 14 late bilinguals listened to mixed pairs of words in Arabic (L1) and Hebrew (L2) and indicated whether both words in the pair had the same or different meanings. The spatio‐temporal distribution of current densities of event‐related potentials were estimated for each language and according to semantic and phonologic relationship (same or different) compared with the first word in the pair. During early processing (<300 ms), brain activity in temporal and temporoparietal auditory areas was enhanced by phonologic incongruence between words in the pair and in Wernicke's area by both phonologic and semantic priming. In contrast, brain activities during late processing (>300 ms) were enhanced by semantic incongruence between the two words, particularly in temporal areas and in left hemisphere Broca's and Wernicke's areas. The latter differences were greater when words were in L2. Surprisingly, no significant effects of relative proficiency on processing the second word in the pair were found. These results indicate that the distribution of brain activity to the second of two words presented bilingually is affected differently during early and late processing by both semantic and phonologic priming by‐ and incongruence with the immediately preceding word. Hum Brain Mapp 34:2882–2898, 2013. © 2012 Wiley Periodicals, Inc.