Fig. 2: Biophysical modeling of the current’s distribution and magnitude induced by anodal tDCS applying a 3 × 3 cm² anode over AF3 and a 10 × 10 cm² cathode over PO8.

The left panel depicts changes in electrical field intensity (V/m) when tDCS is applied in the described montage, while the right panel depicts the according location of the anode (red) and cathode (blue) according to the 10–20 EEG system (see “Methods” for details on biophysical modeling).