Finding the line motion illusion in a neuronal network model

Adi Rangan, CIMS

A common visual illusion is the 'line-motion-illusion':  a quickly flashed nonmoving square followed by a long, nonmoving bar giving rise to the visual sensation that the bar is growing outward from the square.  Experiments by Grinvald et al. suggest that the primary visual cortex (V1) is actually 'fooled' by this illusion -- the cortex responds as if a growing bar were presented.  Using a large-scale computational model of V1, I will explain possible network mechanisms underlying this phenomenon.