Identifying where crowding happens in the brain using MRI
The sense that we are able to see things equally well across our field of view is an illusion. “High resolution” vision is limited to <1% of the field. The remaining “peripheral” vision is quite poor, and is impeded further when the target is surrounded by other objects known as “visual crowding”. However, we know little about where crowding happens in the brain.
In this study our aim is to determine what brain regions are involved in crowding by correlating subjects’ susceptibility to crowding (measured using psychophysics) and cortical architecture, measured using a recently developed functional Magnetic Resonance Imaging technique population receptive field (pRF) mapping.
Authors: Dr Catherine Morgan, Prof Steven Dakin, A/P Sam Schwarzkopf
Collaborators: Elaine Anderson & Geraint Rees (UCL), Anton Hong, Ernest Oh (previous Optometrist students)
Funding details: FRDF (Faculty Research Development Fund), Project No. 3710727
Status: Funded & running