neutral point

the single wavelength of visible light that appears uncolored (white or gray) to a person with dichromatism (someone with only two cone photopigments, rather than three). The specific wavelength of the neutral point varies according to which photopigment is missing. Those with normal color vision (trichromatism) and three cone photopigments have no neutral point.

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Psychology term of the day

March 13th 2025

fast muscle fiber

a type of muscle fiber found in skeletal muscle that contracts rapidly but fatigues readily. Compare slow muscle fiber.