1. Bielefeld University,Neuroinformatics Group,Bielefeld,Germany,33501
2. Otto-von-Guericke University,Leibniz Institute for Neurobiology and with the Institute of Biology,Department of Systems Physiology of Learning,Magdeburg,Germany
3. Bielefeld University,Kognitronik and Sensorik Group,Bielefeld,Germany,33501