title: Hue discrimination, unique hues and naming.
abstract: The hue discrimination curve (HDC) that characterizes performances over the entire hue circle was determined by using sinusoidally modulated spectral power distributions of 1.5 c/300 nm with fixed amplitude and twelve reference phases. To investigate relationship between hue discrimination and appearance, observers further performed a free color naming and unique hue tasks. The HDC consistently displayed two minima and two maxima; discrimination is optimal at the yellow/orange and blue/magenta boundaries and pessimal in green and in the extra-spectral magenta colors. A linear model based on Müller zone theory correctly predicts a periodical profile but with a phase-opponency (minima/maxima at 180° apart) which is inconsistent with the empirical HDC's profile.
authors.affiliation: Department of Psychology, The University of Winchester, Winchester SO22 4NR, United Kingdom.
authors.forename: Romain
authors.initials: R
authors.lastname: Bachy
authors.forename: Jérôme
authors.initials: J
authors.lastname: Dias
authors.forename: David
authors.initials: D
authors.lastname: Alleysson
authors.forename: Valérie
authors.initials: V
authors.lastname: Bonnardel
mesh_terms: D003116:Color; D003118:Color Perception / Q000502:physiology*; D003119:Color Perception Tests; D004192:Discrimination, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D013057:Spectrum Analysis