PSY-220 Lecture Notes - Lecture 3: Ganglion Cell, Color Vision, Trichromacy

• School: University of Tampa
• Department: Psychology
• Course: PSY-220
• Professor: Odgaard, Eric C

Document Summary

The optic nerve exits the eyeball on the nasal side (the side closer to the nose). Bipolar cells are called bipolar because they can send inhibitory or excitatory signals depending on what signals they received. Each ganglion cells is getting input from anywhere between 2-200 rods and cones. The difference between foveal and peripheral vision messenger within the cell. Distinguishes among bright lights; responds poorly to dim light. Good detail vision because each cones own ganglion cell sends a message to the brian. Poor detail vision because many receptors converge their input onto a given ganglion cell. Specificity of color vision: depends on specific receptors within the eye, two major interpretations of color vision. Chapter five: vision: trichromatic theory/young-helmholtz theory, discovered the three primary (or target) colors: red, blue, green, the most often cited papers of the 140 papers he published, opponent-process theory (the more popular of the two)