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. 2019 May 15;13:36. doi: 10.3389/fncir.2019.00036

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Copyright © 2019 Yang, Zhao, Cui, Zhang, Zhao, He, Liu, Guo, Liu, Becker, Kendrick 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) and the copyright owner(s) 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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Temporal variability assessment of functional activity in cortical gyri, sulci, and undefined regions. (A) The parcellated cortical surface of gyri, sulci, and undefined regions. (B) Segmented n non-overlapping time windows of each BOLD signal in gyri, sulci, and undefined regions. (C) Assessment of correlation between any pair of signal segments in time windows. (D) Assessment of variance of all correlation values between time window pairs.