1. Institute of Psychology, University of Silesia in Katowice, Katowice, Poland
2. Department of Neurology, Penn Center for Neuroaesthetics, ChatLab, University of Pennsylvania, Philadelphia, PA, USA
3. Institute of Psychology, University of Silesia in Katowice, Katowice, Poland
4. Institute of Public Health, Jagiellonian University Medical College, Kraków, Poland
5. Faculty of Psychology, Complutense University of Madrid, Madrid, Spain
6. University of Padua, Padua, Italy
7. Cardinal Stefan Wyszyński University, Warszawa, Poland