Popple Illusion: -------------------- A visual illusion where concentric circles appear distorted due to the arrangement of Gabor patches—small squares with alternating brightness patterns. --------------------------------------- ➡️ Explanation: ---------------- The illusion works because each Gabor patch has a sine wave brightness pattern, creating a misleading sense of curvature and movement. This tricks the brain into perceiving distortions even though the circles are perfectly concentric. --

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