PSY100H1 Chapter Notes - Chapter 5: Motion Perception, Face Perception, Edge Detection
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PSY100H1 Full Course Notes
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Document Summary
Visual sensory neurons tuned to particular types of information in light. Some respond best to color, shape, directions of motion gives neuron specific receptive field: population of sensory receptors that influences activity in a sensory neuron, region within which cell responds to given stimuli. Visual receptive fields located on a specific region of retina or visual space. Color of light surroundings determined by wavelength (400-700 nm) but wrong to equate physical wavelength with perceived color color categorized by: hue, brightness, saturation. Two ways to produce spectral pattern: subtractive or additive mixture: subtractive color mixing: mixture occurs within stimulus itself, physical not psychological. Red, yellow, blue are the subtractive primary colors. Color vision: some excited by s cones, but inhibited by l&m (blue and yellow opposites) color-opponent ganglion pg 179 respond most to boundaries and less to uniform regions. What you perceive vastly different from pattern of stimulation on retina.
