BCS 110 Lecture Notes - Lecture 12: Visual Cortex, Peripheral Vision, Simple Cell

• School: University of Rochester
• Department: Brain and Cognitive Sciences
• Course: BCS 110
• Professor: Kevin Davis

Document Summary

Lgn cells project to layer iv (4) of cortex. P and m cells project to different subdivisions of layer 4. The input from thalamus to cortex: layer 4. Cells in input layer iv tend to have receptive fields with a center- surround organization. Cortical neurons continue to be monocular in layer iv of primary visual cortex. 4ca - inputs from m channel : black and white (active mostly during night time) In visual cortex, layer 4 is consisted of 4a, 4b, 4ca, 4c. 4c- input from p-ib channel: color (day time) They don"t mix (they are kept separate) Depth perception requires inputs from two eyes so you can"t do it in the thalamus. The central region (fovea) of the visual field is hugely over-represented in the primary visual cortex : half of the visual cortex is responsible for processing it. Losing one eye means losing peripheral vision. Cut optic tract - you lose of visual field of opposite side.