Human color representation utilizes three RGB channels due to retinal cone physiology
Human trichromatic color vision and its three channels are directly grounded in the physiological presence of three distinct classes of cone photoreceptors in the retina.
The retrieved literature consistently supports the physiological basis of human trichromatic color vision through three distinct classes of retinal cone photoreceptors (L, M, and S cones), affirming the claim.
Katarzyna A. Hussey, Sarah E. Hadyniak, R. Johnston. Patterning and Development of Photoreceptors in the Human Retina. 2022. https://doi.org/10.3389/fcell.2022.878350
The paper confirms that human cone photoreceptors are responsible for trichromatic color vision.
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Andrew J. Zele, Prakash Adhikari, Dingcai Cao, B. Feigl. Melanopsin and Cone Photoreceptor Inputs to the Afferent Pupil Light Response. 2019. https://doi.org/10.3389/fneur.2019.00529
The study explicitly examines how the three cone photoreceptor classes (L, M, and S) provide the primary inputs for human color vision.
Furu Zhang, K. Kurokawa, Ayoub Lassoued, J. Crowell, Donald T. Miller. Classifying cone photoreceptors in the living human eye using their unique phase response to light. 2019. https://doi.org/10.1117/12.2508901
The research highlights that human color vision is achieved by mixing neural signals from three distinct cone photoreceptor types sensitive to long-, medium-, and short-wavelength light.
Grünert U. Retinal anatomy: Comparison of primate (including human) and mouse retina.. 2026. https://doi.org/10.1016/b978-0-443-22193-4.00007-x
The review notes that the human primate retina contains three distinct types of cones that enable trichromatic color vision.
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