Color vision | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-03

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Color_vision


00:00:59 1 Wavelength and hue detection
00:03:01 2 Physiology of color perception
00:04:46 2.1 Theories
00:05:51 2.2 Cone cells in the human eye
00:07:11 2.3 Color in the human brain
00:13:07 2.4 Subjectivity of color perception
00:15:16 2.5 In other animal species
00:21:16 3 Evolution
00:23:17 4 Mathematics of color perception
00:29:26 5 Chromatic adaptation
00:30:20 6 See also



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SUMMARY
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Color vision is an ability of animals to perceive differences between light composed of different wavelengths (i.e., different spectral power distributions) independently of light intensity.  Color 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. Those photoreceptors then emit outputs that are then propagated through many layers of neurons and then ultimately to the brain.  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. In primates, color vision may have evolved under selective pressure for a variety of visual tasks including the foraging for nutritious young leaves, ripe fruit, and flowers, as well as detecting predator camouflage and emotional states in other primates.