PSYCH261 Chapter Notes - Chapter 5: Foveal, Peripheral Vision, Afterimage
4 Feb 2016
School
Department
Course
Professor
Document Summary
How far we can see depends on how far the light travels before it strikes the eyes. You do not send out: arab philosopher ibn al haytham observed that when you open your eyes at night, you immediately see the distant stars. If you saw by sending out sight rays, they couldn"t get to the stars that fast. Light rays bounce off an object in all directions, but you only see those rays that reflect off the object and strike your retina light from it alters your brain activity. When you see a tree, your perception is not in the tree. One aspect of coding is which neurons are active. Impulses in certain neurons indicate light, impulses in. Rene descartes believed that the nerves from the eye would send the brain a pattern of impulses arranged like a picture of the perceived object, right side up.
