When Purple Perceived Only at Fixation: A Fixation and Distance-Dependent Color Illusion
Hinnerk Schulz-Hildebrandt
Published: 2025/9/15
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.