1. Institute of Neuroscience and Medicine (INM-6) and Institute for Advanced Simulation (IAS-6) and JARA-Institut Brain Structure-Function Relationships (INM-10) , Jülich Research Centre, Wilhelm-Johnen-Str., 52428 Jülich , Germany
2. Institute of Zoology, University of Cologne , Zülpicher Str., 50674 Cologne , Germany
3. Institute of Neuroscience and Medicine (INM-6) and Institute for Advanced Simulation (IAS-6) and JARA-Institut Brain Structure-Function Relationships (INM-10), Jülich Research Centre , Wilhelm-Johnen-Str., 52428 Jülich , Germany