Large Scale Models in the Visual Pathway of Turtles: Visual Cortex and the Retina

Abstract

Both single and repeated stimuli produce waves of activity in the visual cortex of freshwater turtles. Large scale, biophysically realistic models of the retina and the visual cortex capture the basic features of the waves produced by a single stimuli. The waves produced are subsequently represented using principal components obtained over a sequence of time windows. The locations and velocities of the stimuli are detected from these representations using maximum likelihood estimates.