title: Reversal in the sequence of the Benham colours with a change in the wavelength of illumination.
abstract: A Benham disk was rotated at 7 c/sec and illuminated by monochromatic lights from the range 534-586 nm. The elicited colours of the rings were described either with a colour naming procedure or by matching with a Munsell chip. Exchanges of hues between the two extreme rings and between the two inner rings were reported around 557 and 566 nm by the colour naming procedure, thus resulting in a hue reversal in the spatial display of colours. Similar hue shifts were also reported with the matching procedure. The effect of a possible displacement in the equilibrium of colour-opponent cell population, resulting from chromatic adaptation, is discussed.
authors.affiliation: Laboratoire de Physique appliquée, Muséum National d'Historie Naturelle, CNRS UPR 257, Paris, France.
authors.forename: F
authors.initials: F
authors.lastname: Viénot
authors.forename: J
authors.initials: J
authors.lastname: Le Rohellec
mesh_terms: D000221:Adaptation, Ocular / Q000502:physiology; D000328:Adult; D003118:Color Perception / Q000502:physiology*; D003119:Color Perception Tests; D006801:Humans; D008027:Light; D008297:Male; D012399:Rotation; D013053:Spectrophotometry