He received his PhD from the University of New South Wales in 1997 under the supervision of Professor Barbara Gillam, and then worked as a post-doctoral fellow with Professor Ian P Howard from 1998-2000 at the Centre for Vision Research, York University, Canada. He then returned to Australia, where he became the Director of the Centre for Psychophysics, Psychophysiology and Psychopharmacology. His twin research interests are stereopsis and the visual perception of self-motion. Most recently he has been examining the effects of visual jitter on self-motion perception and motion sickness, as well as the role that monocular regions play in stereoscopic depth perception (both ARC Funded projects).