How Do Things Look to the Color-Blind?
How Do Things Look to the Color-Blind?
This chapter addresses the question as is posed in the title. In other words, the question being asked concerns the colors represented by a dichromat’s experience. Color-vision defects constitute a spectrum of disorders with varying degrees and types of departure from normal human color vision. One form of color-vision defect is dichromacy; by mixing together only two lights, the dichromat can match any light, unlike normal trichromatic humans, who need to mix three. In a philosophical context, the question may be taken in two ways. First, it can be taken at face value as a question about visible properties of external objects, and second, it may be interpreted as the more intangible question of “what it’s like” to be color-blind.
Keywords: colors, dichromat, color-vision defects, human color vision, dichromacy, trichromatic, visible properties, external objects, color-blind
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