PSY 1101 Study Guide - Railways Act 1921, Interposition, Depth Perception

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: A L L

Document Summary

Psy 1101 september 30, 2013: 2: opponent processing theory. Proposed by hering: criticized trichromatic theory, insufficient to explain colour vision. Certain visual phenomenon cannot be explained by trichromatic theory such as: after images (as pertained to colour) After images: continue to perceive object after physical stimulation has stopped. 4 primary light colours: red, green, blue and yellow. All colours of light can be created with these 4. 1: red and green: clusters of cells that respond to red light and green light. If excited by red, they will be inhibited by green. The brain monitors the 3 systems and based on the pattern of activation, the brain will determine what we see. Will combine lights: red and yellow yields orange. D. 3: bottom line (to date, both theories valid: trichromatic theory is supported by the cones in the retina, opponent processing theory is supported by the ganglion cells in the retina and by the neurons in the brain (thalamus).