Figure 2.

Electrode montage and finite element-based modeling of tDCS currents. The volume conductor model implies maximal anterior vmPFC-stimulation with the adapted electrode montage on the forehead and chin, while adjacent brain regions receive minimal stimulation. For excitatory (anodal) or inhibitory (cathodal) stimulation of the vmPFC, the electrode positioned on the forehead was used as the anode or cathode, respectively. For visualization purposes, sponges are displayed here in different colors, i.e., red representing the anode and blue representing the cathode. However, sponges and cables of blue color were used for both stimulation sessions to prevent participants from inferring different stimulation conditions. This figure was published first by Junghofer et al. (2017) Cerebral Cortex. Authorization to republish is available.