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Illusions, perception and Bayes

A new model shows that a range of visual illusions in humans can be explained as rational inferences about the odds that a motion stimulus on the retina results from a particular real-world source.

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Figure 1: Bayesian ideal observers for tasks involving the perception of objects or events that differ along two physical dimensions, such as aspect ratio and slant, size and distance, or speed and direction of motion.

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Geisler, W., Kersten, D. Illusions, perception and Bayes. Nat Neurosci 5, 508–510 (2002). https://doi.org/10.1038/nn0602-508

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