Influence of Stimulus Size on Simultaneous Chromatic Induction

Frontiers in Psychology

Psychology

Kowa Koida¹  Tama Kanematsu² 

[1] Department of Computer Science and Engineering, Toyohashi University of Technology, Toyohashi, Japan;Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi, Japan;Department of Computer Science and Engineering, Toyohashi University of Technology, Toyohashi, Japan;Japan Society for the Promotion of Science, Tokyo, Japan;

关键词: psychophysics;    color vision;    spatial vision;    illusion;    eye optics;   

DOI  :  10.3389/fpsyg.2022.818149

 received in 2021-11-19, accepted in 2022-01-03,  发布年份 2022

来源: Frontiers

【 摘 要 】

Chromatic induction is a major contextual effect of color appearance. Patterned backgrounds are known to induce strong chromatic induction effects. However, it has not been clarified whether the spatial extent of the chromatic surrounding induces a chromatic contrast or assimilation effects. In this study, we examined the influence of the width of a center line and its flanking white contour on the color appearance when the line was surrounded by chromatic backgrounds. A strong color shift was observed when the center line was flanked by white contours with the L/M- and S-cone chromatic backgrounds. There was a difference between the optimal widths of the center line and the contour for the shift in color appearance for the L/M-cone chromaticity (0.9 and 1.1–1.7 min, respectively) and the S-cone chromaticity (8.2–17.5 and 0.9–2.5 min, respectively). The optimal width of the center line for the L/M-cone was finer than the resolution-limit width of the chromatic contrast sensitivity and coarser than that of the luminance contrast sensitivity. Thus, the color appearance of the center line could be obtained by integrating broad chromatic information and fine luminance details. Due to blurring and chromatic aberrations, the simulated artifact was large for the darker center line and S-cone background, thus suggesting that the artifact could explain the luminance dependency of the induction along the S-cone chromaticity. Moreover, the findings of this study reveal that the dominant factor of the color shift is neural instead of optical.

【 授权许可】

Unknown   
Copyright © 2022 Kanematsu and Koida.