Centre for Vision Research, York University, Toronto

Professor of Optics & Visual Science

Aix-Marseille Université

University of Rochester

Experimental Psychology, University of Bristol, UK

Reader in Psychology, University of Sussex

Professor of Vision Science, Complutense University of Madrid

University of Fribourg, Department of Neuroscience

Professor in Psychology (Retired), University of Waikato, New Zealand.

Professor, School of Psychological Sciences, Macquarie University