Direct evidence from intraoperative electrocortical stimulation indicates shared and distinct speech production center between Chinese and English languages

Human Brain Mapping
Jinsong WuLiangfu Zhou

Abstract

Chinese processing has been suggested involving distinct brain areas from English. However, current functional localization studies on Chinese speech processing use mostly "indirect" techniques such as functional magnetic resonance imaging and electroencephalography, lacking direct evidence by means of electrocortical recording. In this study, awake craniotomies in 66 Chinese-speaking glioma patients provide a unique opportunity to directly map eloquent language areas. Intraoperative electrocortical stimulation was conducted and the positive sites for speech arrest, anomia, and alexia were identified separately. With help of stereotaxic neuronavigation system and computational modeling, all positive sites elicited by stimulation were integrated and a series of two- and three-dimension Chinese language probability maps were built. We performed statistical comparisons between the Chinese maps and previously derived English maps. While most Chinese speech arrest areas located at typical language production sites (i.e., 50% positive sites in ventral precentral gyrus, 28% in pars opercularis and pars triangularis), which also serve English production, an additional brain area, the left middle frontal gyrus (Brodmann's areas 6/9), wa...Continue Reading

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Citations

Aug 2, 2018·Journal of Clinical and Experimental Neuropsychology·Carla Ruis
Feb 7, 2021·Operative Neurosurgery·N U Farrukh HameedYing Mao
Nov 2, 2019·NeuroImage. Clinical·Robert LoughnanThomas M H Hope
May 14, 2021·Frontiers of Medicine·Peng WangJinsong Wu
May 13, 2021·Brain : a Journal of Neurology·Zehao ZhaoJinsong Wu

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