1 University of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Neurology, Germany; University of Cologne, Faculty of Arts and Humanities, IfL Phonetics, Germany. Electronic address: tabea.thies@uk-koeln.de.
2 University of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Neurology, Germany.
3 University of Cologne, Faculty of Arts and Humanities, IfL Phonetics, Germany.
4 University of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Stereotactic and Functional Neurosurgery, Germany.
5 Aix-Marseille Univ, CNRS, LPL, Aix-en-Provence, France.