Cone contrasts do not predict color constancy

A successive, asymmetric color-matching paradigm was used to investigate the link between cone contrast and the stability of perceived colors. We measured the perceived color shifts of 10 Munsell samples, induced by test illuminant A, simulated in u′v′ color space. The capacity of the visual system...

Full description

Saved in:
Bibliographic Details
Published in:Visual neuroscience 2006-05, Vol.23 (3-4), p.543-547
Main Authors: MURRAY, I.J., DAUGIRDIENE, A., STANIKUNAS, R., VAITKEVICIUS, H., KULIKOWSKI, J.J.
Format: Article
Language:English
Subjects:
Changes
Color
Color appearance
COLOR CONSTANCY
Color Perception - physiology
Cone contrast
Contrast Sensitivity - physiology
Experiments
Humans
Light
Photic Stimulation - methods
Physical background
Predictive Value of Tests
Psychophysics
Retinal Cone Photoreceptor Cells - physiology
Space Perception
von Kries law
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A successive, asymmetric color-matching paradigm was used to investigate the link between cone contrast and the stability of perceived colors. We measured the perceived color shifts of 10 Munsell samples, induced by test illuminant A, simulated in u′v′ color space. The capacity of the visual system to resist these shifts, otherwise known as color constancy, is measured in terms of the Brunswik ratio, BR. Cone contrasts are calculated with respect to either the physical or perceived background. Subjective cone contrasts show a better fit to the von Kries law than those based on the physical background. Complete cone adaptation occurs when color constancy is high. However we show conditions where cone adaptation seems complete but color constancy is poor.
ISSN:0952-5238
1469-8714
DOI:10.1017/S0952523806230025