Perceptual resolution of ambiguity: A divisive normalization account for both interocular color grouping and difference enhancement.

ABSTRACT: Our visual system usually provides a unique and functional representation of the external world. At times, however, there is more than one compelling interpretation of the same retinal stimulus; in this case, neural populations compete for perceptual dominance to resolve ambiguity. Spatial and temporal context can guide this perceptual experience. Recent evidence shows that ambiguous retinal stimuli are sometimes resolved by enhancing either similarities or differences among multiple ambiguous stimuli. Although rivalry has traditionally been attributed to differences in stimulus strength, color vision introduces nonlinearities that are difficult to reconcile with luminance-based models. Here, it is shown that a tuned, divisive normalization framework can explain how perceptual selection ca

SUBMITTER: Peiso JR 

PROVIDER: S-EPMC12811879 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature