1 Institute of Medical Psychology, Goethe University, Frankfurt/Main, Germany. Electronic address: schmidt-kassow@med.uni-frankfurt.de.
2 Neuropsychology Lab, Department of Psychology, European Medical School, University of Oldenburg, Oldenburg, Germany; Cluster of Excellence Hearing4all, University of Oldenburg, Oldenburg, Germany; Research Centre Neurosensory Science, University of Oldenburg, Oldenburg, Germany. Electronic address: stefan.debener@uni-oldenburg.de.