1. Leibniz Institute for Neurobiology (LIN) 1 , Department Genetics of Learning and Memory, 39118 Magdeburg , Germany
2. Otto von Guericke University, Institute of Biology 2 , 39106 Magdeburg , Germany
3. Center for Behavioral Brain Sciences (CBBS), Otto von Guericke University 3 , 39106 Magdeburg , Germany