Spatiotemporal brain activation pattern during word/picture perception by native Koreans
Spatiotemporal brain activation pattern during word/picture perception by native Koreans
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DOI：
10.1097/00001756-200405190-00003
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发表时间：
2004-05-19
期刊：
影响因子：
1.7
通讯作者：
Park, HW
中科院分区：
文献类型：
--
作者：
Kim, KH;Yoon, HW;Park, HW
本研究旨在探讨三种不同语言(韩语、英语、汉语)和图片在词汇知觉过程中的时空脑激活模式。采用通道事件相关电位记录和分布源模型进行来源定位，在高时间分辨率下，研究了不同语言和/或图片的词汇知觉是否涉及相似或不同的脑激活时空模式。实验结果似乎证实了左半球在语言加工中的优势，以及先前的事件相关电位和神经成像研究揭示的词语知觉的时间/空间特征。观察到英语和韩语以及韩语和汉语在特定时间段激活的空间模式的差异可以用所需的视觉模式分析来解释，这是由于每种语言的正字法特点。
The purpose of this study is to explore spatiotemporal brain activation patterns during perception of words from three different languages (Korean, English, Chinese) and pictures. Using 64 channel event-related potential (ERP) recording and source localization using distributed source model, we investigated, with high temporal resolution, whether similar or different spatiotemporal patterns of brain activation are involved in the perception of words of different languages and/or pictures. Experimental results seem to corroborate left hemispheric dominance in language processing, and temporal/spatial characteristics in word perception revealed by previous ERP and neuroimaging studies. Observed differences in spatial pattern of activation at specific time periods between English and Korean, and Korean and Chinese, could be explained in terms of required visual pattern analysis due to the orthographic characteristics of each language.