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. 2014 Sep 30;4(9):e453. doi: 10.1038/tp.2014.101

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Copyright © 2014 Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/

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The voxel-mirrored homotopic connectivity (VMHC) value of superior frontal gyri (BA 8), middle frontal gyri (two clusters: BA 8/9 and BA 10) and angular gyri (BA 39) in the three groups (healthy controls, patients before and after electroconvulsive therapy (ECT)). HC, healthy controls; Pre, depression patients before ECT; Post, depression patients after ECT. *There is a significant difference between the corresponding group and healthy controls (P<0.05). (a) Compared with healthy controls, VMHC of the superior frontal gyri (BA 8) was significantly higher in depression patients after ECT (t=2.292; P=0.031), but no significant difference was observed between healthy controls and depression patients before ECT (t=−0.540; P=0.594). (b) Compared with healthy controls, VMHC of the middle frontal gyri (BA 8/9) was significantly lower in depression patients before ECT (t=−2.286; P=0.031), but no significant difference was observed between healthy controls and depression patients after ECT (t=1.156; P=0.265). (c) Compared with healthy controls, VMHC of the middle frontal gyri (BA 10) was significantly higher in depression patients after ECT (t=2.549; P=0.018), but no significant difference was observed between healthy controls and depression patients before ECT (t=−1.650; P=0.112). (d) Compared with healthy controls, VMHC of the angular gyri (BA 39) was significantly lower in depression patients before ECT (t=2.632; P=0.015). No significant difference was observed between healthy controls and depression patients after ECT (t=1.740; P=0.095).