1 Department of Psychiatry, University of North Carolina at Chapel Hill, USA; Carolina Center for Neurostimulation, University of North Carolina at Chapel Hill, USA.
2 Carolina Center for Neurostimulation, University of North Carolina at Chapel Hill, USA; Department of Psychiatry, University of North Carolina at Chapel Hill, USA.
3 Department of Psychiatry, University of North Carolina at Chapel Hill; Carolina Center for Neurostimulation, University of North Carolina at Chapel Hill.
4 Department of Psychiatry, University of North Carolina at Chapel Hill; Carolina Center for Neurostimulation, University of North Carolina at Chapel Hill; School of Electronics Engineering, Kyungpook National University, Daegu, South Korea.
5 Department of Psychiatry, University of North Carolina at Chapel Hill; Carolina Center for Neurostimulation, University of North Carolina at Chapel Hill; Department of Neurology, University of North Carolina at Chapel Hill; Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill; Department of Biomedical Engineering, University of North Carolina at Chapel Hill; Neuroscience Center, University of North Carolina at Chapel Hill. Electronic address: flavio_frohlich@med.unc.edu.