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. 2016 Feb 3;18:40. doi: 10.1186/s13075-016-0934-0

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© Cummiford et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Correlations between changes in FC and changes in clinical pain after sham transcranial direct current stimulation (tDCS). a Decreased FC between the left VL thalamus (seed in white) and left posterior insula was correlated with a reduction in clinical pain after sham tDCS. b Decreased FC between the right VPL thalamus (seed in white) and left M1, right M1, and right S1 correlated with reduced clinical pain after sham tDCS. Data shown are Fisher-transformed r values. VL ventral lateral, VPL ventral posterolateral, M1 primary motor cortex, S1 primary somatosensory cortex, VAS visual analogue scale, L left, R right, FC functional connectivity