Data processing
Longitudinal structural MRI data was acquired at baseline and after 12 sessions of tDCS treatment (i.e., post-treatment). This data was acquired using the same MRI sequence as used during the consult visit MRI scan described above. The acquired data was skull-stripped and segmented using voxel-based morphometry (VBMThe baseline and post-treatment MRI sessions also involved the acquisition of concurrent tDCS/MRI data (the latter was analyzed and reported in