Stereokinetic Effect (SKE)

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Rotation of adequate figures creates a three-dimensional illusion. It can take some time until the percept emerges. In the example on the right, envisaging a rotating crater may help. The kinetic depth effect (KDE) is a related phenomenon. Sources Musatti CL (1924) Sui fenomeni stereocineti [On the stereokinetic phenomenon]. Archivio Italiano di Psicologia, 3:105–120 [first scientific report on the stereokinetic illusion, attributing the discovery and name to his teacher Vittorio Benussi] The French artist Marcel Duchamp (1887–1968) experimented with stereokinetic depth in 1935 [after: Duchamp – A Biography (1996) Tomkins C, Henry Holt & Co · New York, p 101] Wallach H, O’Connell DN (1953) The kinetic depth effect. J Exp Psychol 45:205–217 Mather G (1989) Early motion processes and the Kinetic Depth Effect. Quarterly J Exp Psychol 41:183–198 Proffitt DR, Hecht H, Rock I, Schubert J (1992). Stereokinetic effect and its relation to the kinetic depth effect. J Exp Psychol Hum Percept Performance 18:3–21