Neuroimaging studies have revealed that several brain regions play an important role in the visual processing of Chinese characters,including the left parts of inferior occipital gyrus,middle fusiform gyrus,superior parietal lobule,and middle frontal gyrus.In order to investigate the intercommunicating pattern among these brain regions in the resting state,the method of the multivariate Granger Causality Model(GCM) is employed to analyze the time series of these brain regions,which could provide robustness ...