1/28/2004   slide 11
Processing in Visual Cortex
•Light stimulates retinal cells, impulses are transmitted, info arrives in visual cortex creating a retinal map. •Retina 2D and curved. Visual cortex convoluted. How does brain extract meaningful information?
Target image causes excitation in the striate cortex [main visual cortex] of the left hemisphere (monkey).
http://neuro.med.harvard.edu/site/dh/b28.htm
“retinal map” is highly nonlinear, further processing must undo distortion to determine real-world stimulus

This clearly shows parallel processing and some degree of locality