Figure 6

Validation of a computational 3D model to predict intracerebral fields. All values were measured and calculated in the y-direction. (A) EM computational 3D model for predicting electric fields induced by transcutaneous and subcutaneous stimulation. (B) In stimulation between the active electrode channel 1 and the reference electrode, the recorded values measured by using two-parallel subdural strips and the predicted values calculated by EM simulation were very similar to each other, and subcutaneous stimulation induced several times larger electric field compared to transcutaneous stimulation in EM simulation, too. Error bars represent SD. (C) The black dotted line means perfect electric field prediction. Our model showed very high accuracy of prediction (R = 0.788, P < 0.001).