In the healthy group, the waveforms from the bilateral temporal dipoles and right frontal dipole presented with a monophasic P300 peak, while the waveforms from the frontal dipoles in the right hemisphere resulted in a small P300 peak followed by a negative slow wave. In the anxiety disorder group, the two dipoles in the left hemisphere presented with a small P300 peak followed by a negative slow wave, whereas the two dipoles in the right hemisphere displayed a large monophasic P300 peak. In the depressive disorder group, the right-hemispheric temporal dipole presented with a small P300 peak followed by a negative slow wave, and the left-hemispheric dipoles displayed a large monophasic P300 peak.
