Figure 3.

Simulation of the TDCS electric field obtained using the montage described by Sowden et al. (2015). (A) Electric field strength. (B) Normal component of the electric field. The two sides of the gyrus of the temporo-parietal junction are polarized in opposite ways. (C) Slice view of the electrical field strength. While this view has the advantage of visualizing field strength in deeper cortical and subcortical areas such as insula, putamen, and thalamus, it does not allow displaying current direction relative to the cortical surface and misses the general overview that visualizations on the rendered brain surface offer. Electrodes were modeled using the same shape parameters as for Figure 2. The anode was placed above CP6 and the cathode over Cz. The current was set to 1 mA.