1. C. & O. Vogt Institute of Brain Research, University of Düsseldorf; 40225 Düsseldorf Germany
2. Department of Psychology and J.P. Scott Center for Neuroscience; Bowling Green State University; Bowling Green Ohio 43403
3. Department of Biopsychology; Institute of Cognitive Neuroscience, Faculty of Psychology, Ruhr-University Bochum; 44780 Bochum Germany
4. Research Department of Neuroscience; Mercator Research Group “Structure of Memory,” Faculty of Medicine, Ruhr-University Bochum; 44780 Bochum Germany
5. Institute of Neuroscience and Medicine INM-1, Research Center Jülich; 52425 Jülich Germany
6. Department of Psychiatry, Psychotherapy and Psychosomatics; RWTH Aachen University, and JARA-Translational Brain Medicine; 52074 Aachen Germany