When Purple Perceived Only at Fixation: A Fixation and Distance-Dependent Color Illusion
Optics
2025-10-15 v4 Neurons and Cognition
Abstract
In this paper a novel optical illusion is described in which purple structures are perceived as purple at the point of fixation, while the surrounding structures of the same purple color are perceived toward a blue hue. As the viewing distance increases, a greater number of purple structures revert to a purple appearance.
Cite
@article{arxiv.2509.11582,
title = {When Purple Perceived Only at Fixation: A Fixation and Distance-Dependent Color Illusion},
author = {Hinnerk Schulz-Hildebrandt},
journal= {arXiv preprint arXiv:2509.11582},
year = {2025}
}
Comments
4 pages, 4 figures