Publication in refereed journal
香港中文大学研究人员 ( 现职)
| 彭刚教授 (语言学及现代语言系) |
全文
| 数位物件识别号 (DOI) http://dx.doi.org/10.1073/pnas.1416000112 |
引用次数
Web of Sciencehttp://aims.cuhk.edu.hk/converis/portal/Publication/8WOS source URL
其它资讯
摘要How is language processed in the brain by native speakers of different languages? Is there one brain system for all languages or are different languages subserved by different brain systems? The first view emphasizes commonality, whereas the second emphasizes specificity. We investigated the cortical dynamics involved in processing two very diverse languages: a tonal language (Chinese) and a nontonal language (English). We used functional MRI and dynamic causal modeling analysis to compute and compare brain network models exhaustively with all possible connections among nodes of language regions in temporal and frontal cortex and found that the information flow from the posterior to anterior portions of the temporal cortex was commonly shared by Chinese and English speakers during speech comprehension, whereas the inferior frontal gyrus received neural signals from the left posterior portion of the temporal cortex in English speakers and from the bilateral anterior portion of the temporal cortex in Chinese speakers. Our results revealed that, although speech processing is largely carried out in the common left hemisphere classical language areas (Broca's and Wernicke's areas) and anterior temporal cortex, speech comprehension across different language groups depends on how these brain regions interact with each other. Moreover, the right anterior temporal cortex, which is crucial for tone processing, is equally important as its left homolog, the left anterior temporal cortex, in modulating the cortical dynamics in tone language comprehension. The current study pinpoints the importance of the bilateral anterior temporal cortex in language comprehension that is downplayed or even ignored by popular contemporary models of speech comprehension.
着者Ge JQ, Peng G, Lyu BJ, Wang Y, Zhuo Y, Niu ZD, Tang LH, Leff AP, Gao JH
期刊名称PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版年份2015
月份3
日期10
卷号112
期次10
出版社NATL ACAD SCIENCES
页次2972 - 2977
国际标準期刊号0027-http://aims.cuhk.edu.hk/converis/portal/Publication/8424
语言英式英语
关键词cortical dynamics; functional MRI; speech perception; tonal language
Web of Science 学科类别Multidisciplinary Sciences; Science & Technology - Other Topics
