PSYCH 1XX3 Lecture Notes - Lecture 7: Opponent Process, Retina, Visual Cortex
Document Summary
Receptive field - a segment on the retina, there are many, and they overlap. Cones transmit their information to the bipolar cells then to the ganglion cells. Red light shines and activates the red cones, stimulates the red bipolar cell, activates the red-green ganglion cell and transmits to the optic nerve. A green light shines and activates the green cones, mostly in the surround, stimulates the inhibitory bipolar cell, fires more slowly on the red-green ganglion cell. There are also yellow-blue and blue-yellow ganglion cells. Red and green cones respond to yellow light. After this, the information goes to the optic nerve and the lgn, then the primary visual cortex. Additive - adding waves of light together to create another colour, all together create white. Subtractive - deals with pigment, absorbs all the colours it doesn"t appear to be. Blur shirt absorbs red, green, yellow, not blue etc. sum of complementary and all colours is brown.
