1. Department of Experimental Psychology, Justus-Liebig-University Giessen, Giessen, Germany
2. konrad.e.prokott@psychol.uni-giessen.de
3. Department of Computer Science and Engineering, Toyohashi University of Technology, Toyohashi, Aichi, Japan
4. Japan Society for Promotion of Sciences, Chiyoda, Tokyo, Japan
5. tamura@cs.tut.ac.jp
6. Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Germany
7. roland.w.fleming@psychol.uni-giessen.de