[2509.11582] When Purple Perceived Only at Fixation: A Fixation and Distance-Dependent Color Illusion

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Physics > Optics

arXiv:2509.11582 (physics)

[Submitted on 15 Sep 2025 (v1), last revised 13 Oct 2025 (this version, v4)]

Title:When Purple Perceived Only at Fixation: A Fixation and Distance-Dependent Color Illusion

Authors:Hinnerk Schulz-Hildebrandt<br>View a PDF of the paper titled When Purple Perceived Only at Fixation: A Fixation and Distance-Dependent Color Illusion, by Hinnerk Schulz-Hildebrandt

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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.

Comments:<br>4 pages, 4 figures

Subjects:

Optics (physics.optics); Neurons and Cognition (q-bio.NC)

MSC classes:<br>78-04

ACM classes:<br>I.4.8; H.1.2

Cite as:<br>arXiv:2509.11582 [physics.optics]

(or<br>arXiv:2509.11582v4 [physics.optics] for this version)

https://doi.org/10.48550/arXiv.2509.11582

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arXiv-issued DOI via DataCite

Submission history<br>From: Hinnerk Schulz-Hildebrandt [view email]<br>[v1]<br>Mon, 15 Sep 2025 05:03:30 UTC (2,347 KB)

[v2]<br>Tue, 16 Sep 2025 17:28:08 UTC (2,347 KB)

[v3]<br>Wed, 24 Sep 2025 16:49:57 UTC (2,347 KB)

[v4]<br>Mon, 13 Oct 2025 18:08:33 UTC (1,301 KB)

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