1. Max Planck Institute for Biological Cybernetics & International Max Planck Research School for Cognitive and Systems Neuroscience, Tuebingen, Baden-Wuerttemberg, Germany
2. Scania CV AB, Södertälje, Sweden
3. Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
4. Max Planck Institute for Biological Cybernetics, Tuebingen, Baden-Wuerttemberg, Germany