1. Cognitive Development Centre, Central European University, H-1015 Budapest, Hungary.
2. Hungarian Academy of Sciences, H-1015 Budapest, Hungary.
3. University of California, San Diego, La Jolla, CA 92093, USA.
4. University IUAV of Venice, 30135 Venice, Italy.
5. CNRS and Aix-Marseille University, 13331 Marseille, France.
6. Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
7. ICREA (Institució Catalana de Recerca i Estudis Avançats) and Universitat Pompeu Fabra, 08018 Barcelona, Spain.