Title

Chromatic Mach Bands: Behavioural Evidence for Lateral Inhibition in Color Vision

Abstract

Apparent hue shifts consistent with lateral inhibition in color mechanisms were measured, in five purely chromatic gradients, for 7 observers. Apparent lightness shifts were measured in achromatic versions of the same gradients, and a correlation was found to exist between the magnitude of the chromatic shifts and the magnitude of the achromatic shifts. The data can be modeled by a function that approximates the activity of color-sensitive neurons found in the monkey cortex. Individual differences and the failure of some previous researchers to find the effect can be accounted for by differences in the function parameters for different observers.

Publication Date

3-1987

Journal or Conference Title

Perception and Psychophysics

Volume

41, Issue 2

Pages

173-178

Publisher

Springer

Digital Object Identifier (DOI)

10.3758/BF03204878

Document Type

Journal Article