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. 2021 May 6;15:625737. doi: 10.3389/fnins.2021.625737

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Copyright © 2021 Wylie, Kronberg, Legget, Sutton and Tregellas.

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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Relationship to Noise Sources. (a) Component spatial maps correlated with white matter (WM) and cerebrospinal fluid (CSF) tissue probability maps and displayed with independent component analysis (ICA) model order K. Almost all correlations were near zero and unrelated to K. (b). Voxel Inclusion Probability Volumes (see Equation 3) for spatial maps with either correlation coefficient | r_WM| or | r_CSF| greater than 0.2. Spatial maps exceeding this cutoff were predominantly located in WM or CSF, minimally overlapping with gray matter.