tDCS induced GABA change is associated with the simulated electric field in M1, an effect mediated by grey matter volume in the MRS voxel
Nandi T., Puonti O., Clarke W., Nettekoven C., Barron H., Kolasinski J., Hanayik T., Hinson E., Berrington A., Bachtiar V., Johnstone A., Winkler A., Thielscher A., Johansen-Berg H., Stagg C.