1. Psychophysiology Laboratory, Institute of Psychology Jagiellonian University Kraków Poland
2. Department of Physiology and Biochemistry, Faculty of Physical Education and Sport University of Physical Education Kraków Poland
3. Institute for Biomagnetism and Biosignal analysis University of Muenster Muenster Germany
4. Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience University of Muenster Muenster Germany