1. York Centre for Vision Research, Canadian Action and Perception Network, and Departments of Psychology, Toronto, Ontario, Canada, M3J 1P3;
2. Kinesiology and Health Sciences, York University, Toronto, Ontario, Canada, M3J 1P3;,
3. Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, 6525 HR, Nijmegen, The Netherlands;