A functional imaging study of translation and language switching

被引:292
作者
Price, CJ
Green, DW
von Studnitz, R
机构
[1] Inst Neurol, Wellcome Dept Cognit Neurol, London WC1N 3BG, England
[2] UCL, London, England
基金
英国惠康基金;
关键词
PET; bilingualism; translation; switching;
D O I
10.1093/brain/122.12.2221
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
The neural systems underlying translation and language switching were investigated using PET. Proficient German-English adult bilinguals were scanned whilst either translating or reading visually presented words in German (L1), English (L2) or alternating L1/L2. We refer to alternating L1/L2 as 'switching!. The results revealed contrasting patterns of activation for translation and switching, suggesting at least partially independent mechanisms. Translation, but not switching, increased activity in the anterior cingulate and subcortical structures whilst decreasing activation in several other temporal and parietal language areas associated with the meaning of words. Translation also increased activation in regions associated with articulation (the anterior insula, cerebellum and supplementary motor area) arguably because the reading response to the stimulus must be inhibited whilst a response in a different language is activated, In contrast, switching the input language resulted in activation of Broca's area and the supramarginal gyri, areas associated with phonological recoding. The results are discussed in terms of the cognitive control of language processes.
引用
收藏
页码:2221 / 2235
页数:15
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