1. Institute for Cellular Chemistry, Hannover Medical School; Carl-Neuberg-Straße 1 30625 Hannover Germany
2. Center for Systems Neuroscience (ZSN); Hannover, Bünteweg 2 30559 Hannover Germany
3. Institute of Reconstructive Neurobiology, University of Bonn; Sigmund-Freud-Straße 25 53127 Bonn Germany