Psychology 2115A/B Lecture Notes - Illusory Contours, Olympic Symbols, Retina

• School: Western University
• Department: Psychology
• Course: Psychology 2115A/B
• Professor: Christine Tsang

Document Summary

By the end of this section, you should know: Why the whole differs from the sum of its parts . How we distinguish objects from their background. Why even the most sophisticated computers are unable to match a person s ability to perceive objects. We usually think about vision is as though it works as a camera we have a static visual image of the world that comes in on the retina and then the retinal image is processed. But in fact, this camera analogy breaks down once you get past the retina. Human vision is actually a 3d view of the world. One of the keys to human vision is invariance our ability to see the world as it actually is vs. how it is represented in an image. Our visual world in human vision is invariant to a wide range of changes that span changes in levels of light, changes in size, and changes in shape.