Chubb Illusion: A Surround Changes Apparent Contrast

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Curated archive entry based on published research. A central grating can appear lower in contrast when surrounded by a high-contrast annulus than an otherwise identical grating without that surround. This describes a documented perceptual effect under the cited conditions, not an independent personal report or evidence that the underlying physical measurements changed.

SOURCE: https://pmc.ncbi.nlm.nih.gov/articles/PMC8212430/

TAGS: #curated #publishedresearch #perception

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