1. Department of Psychiatry, Psychomatics, and Psychotherapy, Heinrich-Hoffmann-Strasse 10, Goethe University Hospital, 60528 Frankfurt, Germany
2. Department of Epileptology, University Hospital Bonn, Bonn, Germany; and Department of General and Systematic Zoology, University of Greifswald, Greifswald, Germany
3. Department of Neurophysiology, Max Planck Institute for Brain Research, Frankfurt am Main, Germany