6/4/2023 0 Comments Chroma for hue download![]() ![]() ![]() In V1, the subset of neurons that are selective to colors ( Cottaris and De Valois, 1998 Lennie et al., 1990 Livingstone and Hubel, 1984, 1983 Thorell et al., 1984 Wachtler et al., 2003) concentrate within cytochrome oxidase (CO) blobs, in which cells preferring similar colors are often located in clusters ( Garg et al., 2019 Landisman and Ts’o, 2002 Ts’o and Gilbert, 1988). Within the ascending retino-geniculo-cortical pathway, interactions between cone signals take place in both the retina ( Dacey, 1996 Gouras, 1968) and in the lateral geniculate nucleus (LGN) ( De Valois et al., 1966 Derrington et al., 1984). Three types of cone photoreceptors are differentially selective to overlapping bands of wavelength within the retina. The primary neural pathway of color signal processing is known ( Conway, 2014 Shapley and Hawken, 2011). ![]() Most of them used dimensions of hue, lightness, and chroma, calling into question how human brains organize neural responses to produce these distinct dimensions of color perception. For more than one hundred years, artists and scientists have created various systems to describe the human perception of color. How the brain achieves the richness of color perception remains a mystery. Different combinations of electromagnetic frequencies and intensities within the visible spectrum result in the colors we see, but colors are not seen as a linear function of wavelength and intensity. Trichromatic color vision in primates is advantageous to seeking food ( Osorio and Vorobyev, 1996) and during social interactions ( Chang et al., 2017 Freiwald, 2020a, 2020b Hasantash et al., 2019 Hiramatsu et al., 2017 Shepherd and Freiwald, 2018 Sliwa and Freiwald, 2017). ![]()
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