PSY 001 Lecture Notes - Lecture 24: The Blind Spot, Peripheral Vision, Retina
17 Sep 2020
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Document Summary
Our eyes respond to some of these waves (certain type) Our brain turns these energy wave sensations into colors. Frequency: # of complete wavelengths that can pass a point in a given time, depends on length of wave, determines color (lower freq. redish, higher is bluish) Amplitude: height from peak to trough, determines brightness of colors. Ligth comes through outside layer of eye( cornea) and through pupil, and gets focused and inverted by the lens. Lens is not rigid, it can perform accommodation by changing shape to focus on near or far objects. The blind spot: there is an area of missing information in our field of vision know as blind spot. This occurs because the eye has no receptor cells at the place where the optic nerve leaves the eye. Retinal receptor cells concentrated in fovea (in the center of retina) After optic nerve, neural impulses go to thalamus.
