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Abstract #2410

Effective connectivity of brain regions involved in word processing: an fMRI study of Chinese character and pinyin in reading

Guoyuan Yang1, Jianqiao Ge1, and Jia-Hong Gao 1

1Peking University, Beijing, China

Reading words has been thought to be consist of three underlying constituents including orthographic, phonological, and semantic processing. The relationship between orthographic, phonological, and semantic processing in nonalphabetic language were still unclear. In the present study, we used functional magnetic resonance imaging (fMRI) to scan subjects when they were reading Chinese character and pinyin. Using dynamic causal modeling, we found that Chinese character reading processing was apparently involved ventral stream, and Chinese pinyin reading significantly involved dorsal stream. We conclude that nonalphabetic language with logographic system like Chinese character may needs less assembling phonology when word processing.

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