PSYCH 212 Chapter Notes - Chapter 7: Visual Cortex, Edge Detection, Color Vision
29 Jan 2017
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Chapter 7 continued extra striate cortex - visual cortex outside of the primary visual cortex visual eld topographic projection. The retina projects to the brain in a topographic fashion scotoma - a region of blindness within the visual elds, caused by injury to the visual pathway or brain blindsight. Neurons at different levels of the visual system have very different receptive elds receptive elds - the stimulus region and features that affect the activity of a cell in a sensory system. Photoreceptors excite some retinal neurons and inhibit others. Neurons in the visual cortex beyond are vi have complex receptive elds and help identify forms. Perception of visual motion is analyzed by a special system that includes cortical area. Color vision depends on social channels from the retinal cones through cortical area v4 wavelength. The three dimensions of color perception are: brightness, hue, saturation.
