Prefrontal direct current stimulation modulates resting EEG and event-related potentials in healthy subjects: A standardized low resolution tomography (sLORETA) study. - Daniel Keeser; Frank Padberg; E. Reisinger; Oliver Pogarell; Valerie Kirsch; U. Palm; Susanne Karch; Hans-Jürgen Möller; Michael A. Nitsche; Christoph Mulert (NeuroImage, 2011)