NROSCI 0080 Lecture Notes - Lecture 5: Amacrine Cell, Color Vision, Retina Horizontal Cell
Document Summary
10/10/17: ho(cid:449) far one sees is dependent on ho(cid:449) far light tra(cid:448)els (cid:271)efore it strikes one"s eyes. Per(cid:272)eption of (cid:448)ision is not in the eyes; it"s in the brain. Light: enters eye through an opening in center of iris called the pupil. Receptors send their messages to bipolar & horizontal cells, which in turn send messages to amacrine & ganglion cells. In periphery of retina, a greater number of receptors converge into ganglion & bipolar cells: less detailed vision in peripheral vision, allows for greater perception of much fainter light in peripheral vision. 2: less color seen in peripheral vision b/c less cones, convergence of input from cones & rods into bipolar cells. In fovea, each bipolar cells receives excitation from one cone & relays info to single midget ganglion cell. Color perception occurs through relative rates of response by 3 kinds of cones:
