Objecthood

Perceptual Organization and the Ebbinghaus Illusion

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Perceptual grouping leads to objecthood effects in the Ebbinghaus illusion

The Ebbinghaus illusion is argued to be a product of low-level contour interactions or a higher cognitive comparison process. We examined the effect of grouping on the illusion by manipulating objecthood, i.e., the degree to which an object is a …