1. Experimental Psychology, Justus Liebig University, Giessen, Germany
2. Center for Mind, Brain, and Behavior (CMBB), University of Marburg and Justus Liebig University, Giessen, Germany
3. harun.karimpur@psychol.uni-giessen.de
4. Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada
5. s.eftekharifar@queensu.ca
6. Centre for Vision Research and Department of Biology, York University, Toronto, ON, Canada
7. troje@yorku.ca
8. katja.fiehler@psychol.uni-giessen.de