1. Laboratory of Psychophysics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
2. david.pascucci@epfl.ch
3. Department of Psychology, University of New Hampshire, Durham, NH, USA
4. Vision Sciences Laboratory, School of Health Sciences, University of Iceland, Reykjavik, Iceland
5. daglar@hi.is
6. ayberk.ozkirli@epfl.ch
7. chh8@hi.is
8. gizay.ceylan@epfl.ch
9. p.zerr@uu.nl
10. mor4@hi.is
11. ak@hi.is