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Mach–Dvorak stereoillusion

an illusion of depth in the motion of a stimulus that moves only in two dimensions, such as a pendulum. The illusion is induced by allowing one eye to view the motion before the other eye and never allowing both eyes to view the motion at the same time. The delay between the signals from the two eyes is interpreted by the visual system as binocular disparity, a normal depth cue. Compare Pulfrich effect. [Ernst Mach; Vinko Dvorak (1848–1922), Czech physicist]

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Psychology term of the day

January 15th 2025

overcontrolled

overcontrolled

adj. denoting behavior that is inhibited and constrained, often driven by shyness or fear of rejection. The word is typically used to describe the behavior of children thought to be at risk for depression, but it may also refer to similar behavior in adults.