1. Department of Auditory Learning & Speech; Leibniz Institute for Neurobiology; D-39118 Magdeburg Germany
2. Department of Systems Physiology of Learning; Leibniz Institute for Neurobiology; D-39118 Magdeburg Germany
3. Institute of Biology, Otto-von-Guericke University; D-39120 Magdeburg Germany
4. Center for Behavioral Brain Sciences; Magdeburg Universitätsplatz 2, D-39106 Germany
5. Clinic of Neurology; Otto-von-Guericke-University Magdeburg; D-39120 Magdeburg Germany