Abstract

Foveal and peripheral hue-scaling data were obtained for a 1° foveal stimulus and a 3° stimulus presented at 10° retinal eccentricity under both bleach (reducing rod input) and no-bleach (permitting rod input) conditions. Uniform appearance diagrams (UADs) were generated from the data. Peripheral stimuli appeared more saturated than foveal stimuli (i.e., supersaturated), especially in the green–yellow region of the UADs. This effect was particularly pronounced for the peripheral bleach condition. The range of wavelengths perceived as green–yellow in the peripheral retina was expanded as compared to the fovea, while the range of wavelengths experienced as blue–green was compressed. This indicates that there are shifts in the unique hue loci with retinal location. While several factors can be ruled out as potential causes for these perceptual differences, the underlying mechanism of this supersaturation effect in the peripheral retina is unknown.

© 2014 Optical Society of America

Small field tritanopia in the peripheral retina

Vicki J. Volbrecht
J. Opt. Soc. Am. A 33(7) 1226-1235 (2016)

Variant and invariant color perception in the near peripheral retina

Neil R. A. Parry, Declan J. McKeefry, and Ian J. Murray
J. Opt. Soc. Am. A 23(7) 1586-1597 (2006)

Color appearance in the peripheral retina: effects of stimulus size

Israel Abramov, James Gordon, and Hoover Chan
J. Opt. Soc. Am. A 8(2) 404-414 (1991)

Color appearance at ±10° along the vertical and horizontal meridians

Vicki J. Volbrecht and Janice L. Nerger
J. Opt. Soc. Am. A 29(2) A44-A51 (2012)

Color appearance across the retina: effects of a white surround

Israel Abramov, James Gordon, and Hoover Chan
J. Opt. Soc. Am. A 9(2) 195-202 (1992)