BCS 110 Lecture Notes - Lecture 12: Visual Cortex, Receptive Field, Color Vision

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

Document Summary

Rods and cons have dark currents - sodium coming in depolarize and release glutamate. Push pulls - important b/c it doubles the signal and makes things easier/huger to distinguish. Best stimuli for visual system is contrast. Perception : (cid:824)i(cid:821)m only gonna focus on those parts causing contrast(cid:825) Vision - all about the perception, not sensation. The most effective way to alter the firing rate of an on-center ganglion cell (or an off-center) To completely illuminate either the (cid:824)on area(cid:825) of its receptive field (or the (cid:824)off-center) Signals from the left visual field of both eyes (blue) reach the right primary visual cortex. Opposite is true for signals from the right visual field of both eyes (red) Retina => receives senses in opposite fashion (ex. : something from one side must go to the other side, so hits your eye and bends across (hits your nasal) and goes across.