Orbison illusion

any one of a group of geometric illusions in which a figure or a line with straight edges, or a circle, appears distorted by a background pattern of repeated lines. [William Dillard Orbison (1911–1952), U.S. psychologist]

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Psychology term of the day

October 18th 2024

Fechner’s paradox

the apparent increase in the brightness of a figure caused by closing one eye after viewing the figure with both eyes open. [Gustav Theodor Fechner]