Study On The Connectivity Of Language Network In Word Reading And Object Recognition Based On Tfmri
BRAIN INFORMATICS(2019)
摘要
Brain structural connectivity is the foundation of its functionality. To understand the brain abilities, studying the relation between structural and functional connectivity is essential. This study aims to investigate the structure connectivity and the information exchange efficiency of the brain language network under different task modality. Using a public database from the open project "Word and Object Processing" shared from the OpenfMRI website (https://openfmri.org/dataset/), this study analyzed task-state fMRI data of 45 subjects with high temporal and spatial resolution. Based on the topological characteristics of language network connection efficiency, this study investigated the structure connectivity and the information exchange efficiency of the brain language function network under different tasks. The result findings show that the structure connectivity and the information exchange efficiency of the brain language network are strongly affected by the task modality. The task of written words reading, compared with other tasks, gets more language network nodes involved and thus the strongest structural connectivity will be activated and the highest information exchange efficiency will be achieved.
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关键词
Language network, Stimulus modality, Structure connectivity, Information exchange efficiency
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