title: Higher order color mechanisms.
abstract: Evidence supporting the existence of higher order color mechanisms, that is, ones beyond the previously identified second stage mechanisms is presented. This evidence includes a reanalysis of the data of Krauskopf et al. [Vision Res. 20, 1123-1131 (1982)] on the desensitizing effects of viewing chromatically modulated fields, new experiments on a generalized version of the "transient tritanopia" experiment of Mollon and Polden [Phil. Trans. R. Soc. Lond. 278, 207-240 (1977)] and results on the relationship between discrimination and detection of brief color changes.
mesh_terms: D000818:Animals; D003118:Color Perception / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology; D005829:Geniculate Bodies / Q000502:physiology; D006185:Habituation, Psychophysiologic; D006801:Humans; D008251:Macaca; D012684:Sensory Thresholds / Q000502:physiology