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the claim

Optical illusions work the same way for everyone.

the verdict
CONTESTED PARTIAL
Recorded sources
2 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that optical illusions work the same way for everyone?

Partly. One reference book states that most illusions work the same for everyone, while a meta-analysis of animal studies finds illusion susceptibility varies across species and eye types. Neither settles the claim for all people in all cases.

Verdict: CONTESTED PARTIAL · 2 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Programming Visual Illusions for Everyone
2017
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Bertamini, M. (2017). Programming Visual Illusions for Everyone. play.google.com. https://play.google.com/store/books/details?id=kWAwDwAAQBAJ&source=gbs_api

Evidence against · 1
Response to geometrical visual illusions in non-human animals: a meta-analysis.
2024
Get citation
O, B., M, R., UJ, O., & P, S. (2024). Response to geometrical visual illusions in non-human animals: a meta-analysis.. doi.org. https://doi.org/10.1098/rspb.2024.0414

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More for · 1
Gender and Thought: Psychological Perspectives
2012
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Crawford, M. & Gentry, M. (2012). Gender and Thought: Psychological Perspectives. play.google.com. https://play.google.com/store/books/details?id=iiOSBgAAQBAJ&source=gbs_api

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held for human review17 Oct 2026
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