Abstract

Two experiments assessed mechanisms underlying brown induction by presenting a foveal target disk and concentric annular surround stimuli that varied in contrast relative to larger backgrounds. Stimuli were presented under monocular, binocular, and dichoptic viewing conditions. Observers adjusted the luminance of the target disk to a criterion brown level. We found evidence for at least two separate mechanisms for brown induction: one mechanism that is dependent on physically contiguous contrast and operates in monocular pathways and another mechanism that responds to high luminance contrast anywhere in the visual field and can operate after convergence of signals from the two eyes.

© 2016 Optical Society of America

No effects of surround complexity on brown induction

Takuma Morimoto, Emily Slezak, and Steven L. Buck
J. Opt. Soc. Am. A 33(3) A45-A52 (2016)

Influence of surround proximity on induction of brown and darkness

Steven L. Buck, Andrew Shelton, Brooke Stoehr, Vina Hadyanto, Miaolu Tang, Takuma Morimoto, and Tanner DeLawyer
J. Opt. Soc. Am. A 33(3) A12-A21 (2016)

Perception of brown with variation in center chromaticity and surround luminance

Keizo Shinomori and John S. Werner
J. Opt. Soc. Am. A 40(3) A130-A138 (2023)

Contrast-dependent red-green balance shifts depend on S-cone activity

Tanner DeLawyer, Melissa Tayon, Chia-li Yu, and Steven L. Buck
J. Opt. Soc. Am. A 35(4) B114-B121 (2018)

Contrast-dependent red-green hue shift

Steven L. Buck, Fred Rieke, and Tanner DeLawyer
J. Opt. Soc. Am. A 35(4) B136-B143 (2018)