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. 2015 Nov 26;9:152. doi: 10.3389/fnana.2015.00152

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Copyright © 2015 Tao, Liu, Zhang, Li, Qin, Yu and Jiang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Total workflow before the statistical analysis. (A) The DMN mask was extracted from fMRI data using group ICA, with a threshold of z = 2. (B) A probabilistic fiber tractography method was used to track the fibers from each ROI and the connectivity probability between any two ROIs was calculated to get the matrix (C). (D) A graph theory method, in which the nodes represented the ROIs and the weighted edges reflected the connectivity probabilities between any two nodes, was used to analyze the DMN structural network.