Abstract

Using near-threshold stimuli, human color sensitivity has been shown to decrease across the visual field, likely due in part to physiological differences between the fovea and periphery. It remains unclear to what extent this holds true for suprathreshold stimuli. The current study used suprathreshold contrast matching to examine how perceived contrast varies with eccentricity along the cardinal axes in a cone-opponent space. Our data show that, despite increasing stimulus size in the periphery, the LM axis stimuli were still perceived as reduced in contrast, whereas the S axis perceived contrast was observed to increase with eccentricity.

© 2018 Optical Society of America

Detection and discrimination of moving stimuli: the effects of color, luminance, and eccentricity

Andrew B. Metha, Algis J. Vingrys, and David R. Badcock
J. Opt. Soc. Am. A 11(6) 1697-1709 (1994)

Perceived shifts in saturation and hue of chromatic stimuli in the near peripheral retina

Declan J. McKeefry, Ian J. Murray, and Neil R. A. Parry
J. Opt. Soc. Am. A 24(10) 3168-3179 (2007)

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)

Dependence of chromatic responses in V1 on visual field eccentricity and spatial frequency: an fMRI study

Dany V. D’Souza, Tibor Auer, Jens Frahm, Hans Strasburger, and Barry B. Lee
J. Opt. Soc. Am. A 33(3) A53-A64 (2016)

Effect of eccentricity and light level on the timing of light adaptation mechanisms

Pablo A. Barrionuevo, Beatriz M. Matesanz, Alejandro H. Gloriani, Isabel Arranz, Luis Issolio, Santiago Mar, and Juan A. Aparicio
J. Opt. Soc. Am. A 35(4) B144-B151 (2018)