The findings of meta-analysis on structural changes by pain-related regions: Gray matter.

See Table 3 for the abbreviations of the brain regions. The asterisk denotes that the finding was derived from a ROI-specific analysis. Upward and downward arrows denote positive and negative changes, respectively (without showing the sub-region of the change). a, anterior; m, mid; p, posterior; i, inferior; oribitofrontal; vl, ventrolateral; dl, dorsolateral; PF, connection with the prefrontal cortex; TP, connection with the temporal cortex. 1cortical thickness; 2gray matter volume.