Color vision perception is a part of the larger visual system and is mediated by a complex process between neurons that begins with differential stimulation of different types of photoreceptors by light entering the eye.
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Color vision perception is a part of the larger visual system and is mediated by a complex process between neurons that begins with differential stimulation of different types of photoreceptors by light entering the eye.
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Color vision is found in many animals and is mediated by similar underlying mechanisms with common types of biological molecules and a complex history of evolution in different animal taxa.
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In very low light levels, Color vision is scotopic: light is detected by rod cells of the retina.
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In brighter light, such as daylight, vision is photopic: light is detected by cone cells which are responsible for color vision.
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Between these regions, mesopic Color vision comes into play and both rods and cones provide signals to the retinal ganglion cells.
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Color vision is categorized foremost according to the dimensionality of the color gamut, which is defined by the number of primaries required to represent the color vision.
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Two complementary theories of color vision are the trichromatic theory and the opponent process theory.
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Recent demonstration, using the Color vision Mondrian, has shown that, just as the color of a surface that is part of a complex 'natural' scene is independent of the wavelength-energy composition of the light reflected from it alone but depends upon the composition of the light reflected from its surrounds as well, so the after image produced by looking at a given part of a complex scene is independent of the wavelength energy-composition of the light reflected from it alone.
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Color vision processing begins at a very early level in the visual system through initial color opponent mechanisms.
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Color vision is a feature of visual perception by an observer.
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Honeybees and bumblebees have trichromatic color vision which is insensitive to red but sensitive to ultraviolet.
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In bird Color vision, tetrachromacy is achieved through up to four cone types, depending on species.
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Marine mammals, adapted for low-light Color vision, have only a single cone type and are thus monochromats.
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