Fig. 2.

Electric field solutions for conventional sponge (CS-tDCS) versus high-definition (HD-tDCS) for four sample subjects in the study. Patient-specific head models were built based on individual MRI, FEM modeled, and optimized to focus currents to an fMRI-determined target (open circle). HD-tDCS results in higher electrical field intensities at target compared to CS-tDCS.