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A Geometrical Account to Explain the Fat-Face Illusion. 2020

Amit Rawal, and Philip Tseng
Graduate Institute of Mind, Brain, & Consciousness, Taipei Medical University, Taipei City.

Investigations of the "fat-face" illusion have unanimously agreed that the illusion is face-specific. Here, we offer several manipulations to highlight that the fat-face illusion is not restricted to the bottom image, isn't a property of internal features, facial contour/texture, and in general isn't even specific to faces. We propose the axis of horizontal asymmetry account to contextualize fat-face illusion as a geometry-led illusion.

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