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Ponzo illusion

a visual illusion in which the upper of two parallel horizontal lines of equal length appears to be longer than the bottom of the two lines when they are flanked by oblique lines that are closer together at the top than they are at the bottom. Also called railway lines illusion. [Mario Ponzo (1882–1960), Italian psychologist]

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Psychology term of the day

January 23rd 2025

klinotaxis

klinotaxis

n. see taxis.