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ISSN : 1226-9654

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Vol.16 No.1
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The Neural Basis of Bilingual Sentence Comprehension in Korean-English Late Bilinguals

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2004, v.16 no.1, pp.61-75



& (2004). The Neural Basis of Bilingual Sentence Comprehension in Korean-English Late Bilinguals. The Korean Journal of Cognitive and Biological Psychology, 16(1), 61-75.
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Abstract

We applied fMRI to examine the bilingual brain activation at semantic aspects of sentence processing, in order to compare our previous study on syntactic processing(Lee et al. 2002). In semantic decision task, the visually presented sentences were judged based on the semantic appropriateness. The cortical activations were compared with the control task, which was ordering judgment task with the sentences of the same length. The SPM99 was employed to analyze the results obtained. The activated areas were calculated by the substraction method. While processing the Korean sentences, the left inferior frontal gyrus, the bilateral lingual gyrus, the left cuneus, and the left superior and middle temporal gyrus were activated. While doing the tasks in English, the areas were the left inferior frontal gyrus, the left medial frontal gyrus, the left lingual gyrus and the left cuneus. There were some overlapping regions in frontal and occipital regions. However, it was noted that the superior and middle temporal gyrus were activated in Korean(L1). The frontal region was more activated in English(L2). We(Lee et al, 2002) have found the same result in the syntactic judgment task. Both of the previous and present results suggest that the L1 processing was more involved in the temporal region and L2 in frontal region. Further studies on bilingualism would be focused on these two regions to examine whether the acquisition age difference really exists or not.

keywords
bilingualism, Korean(L1), English(L2), semantic processing, syntactic processing, cortical activation, functional MRI, frontal lobe, temporal lobe, 이중언어, 한국어(L1), 영어(L2), 의미처리, 통사처리, 뇌 활성화, 기능적 자기공명영상, 전두엽, 측두엽

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