title: The Brain Effective Connectivity of Chinese during Rhyming Task.
abstract: With regard to brain language processing, the activation patterns have been well studied, and recently there are great interest in the connectivity models. The crucial brain areas for phonological processing involves left inferior frontal gyrus (LIFG), left inferior parietal lobule (LIPL) and left posterior middle temporal gyrus (LpMTG). Specially in Chinese processing, the left middle frontal gyrus (LMFG) is considered as an essential region. However, the connectivity pattern among these brain areas is not well understood. In this study, a rhyming experiment of Chinese was conducted, and the Dynamic causal modeling (DCM) and the Bayesian model selection (BMS) were used to examine the interaction between brain regions and choose the best model for rhyming task of Chinese. By examining the interactions, it was found that LMFG exerted inhibitory modulation on LIPL and LIFG; the phonological processing enhanced the connection from LIPL to LIFG and LMFG, which suggested the important roles of these connections for the increased phonological load; And LpMTG modulated LIFG and LMFG negatively, and LIPL positively under rhyming judgment task.
authors: School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China.
authors: Linlin
authors: L
authors: Zhu
authors: School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China.
authors: Zhendong
authors: Z
authors: Niu
authors: School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China.
authors: Yaoxin
authors: Y
authors: Nie
authors: Department of Linguistics, University of Hong Kong, Hong Kong.
authors: Yang
authors: Y
authors: Yang
authors: The 306th Hospital of PLA, Beijing, China.
authors: Ke
authors: K
authors: Li
authors: The 306th Hospital of PLA, Beijing, China.
authors: Zhen
authors: Z
authors: Jin
authors: School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China.
authors: Jieyao
authors: J
authors: Wei
mesh_terms: D000328:Adult; D001921:Brain / Q000000981:diagnostic imaging / Q000502:physiology*; D002681:China; D005260:Female; D006801:Humans; D007802:Language; D008279:Magnetic Resonance Imaging; D008297:Male; D013647:Task Performance and Analysis; D055815:Young Adult