Figure 4.

The effect of dMFC TMS on the LRP. a, On no-TMS congruent trials (black), there was a clear negative deflection in the LRP, indicative of the preparation of correct responses, peaking at ∼300 ms. On incongruent trials (gray), the waveform was, instead, displaced in the positive direction, associated with the preparation of the wrong response. The negative deflection associated with the correct response was delayed. b, When dMFC TMS was applied, there was a significant increase in the difference between the waveforms recorded on congruent and incongruent trials starting at 180 ms. This was attributable to dMFC TMS causing a positive deflection in the LRP on incongruent trials. Negative is plotted upward for the LRP.