PSYCH 101 Lecture Notes - Lecture 3: Auditory Cortex, Stirrup, Interaural Time Difference
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PSYCH 101 Full Course Notes
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Two types of photoreceptors - rods and cones: rods contribute to black and white, cones contribute to color. The color isn"t in the object itself, just in our brains. It only reflects/rejects long wave lengths of red. Two theories of color vision: trichromatic theory. Color perception is based on 3 types of receptors at the level of cones. Each level is maximally sensitive to different ranges of wavelengths. All cones are activated for all hues but their relative activation to each other that gives the perception of color. Ex: when white light stimulates all three cones equally, blue green and red stimulate mainly one of the classes of cones. The other colors are a mixture of the three. This theory alone can"t explain all of color vision though - there must be color coding more complex than what occurs at the cones: opponent process theory. States there are six primary colors, not just three.
