a demo of reverse phi movement (Anstis, 1970) Rings appear to rotate to and fro according to the change in luminance, though black or white arcs are stationary.pic.twitter.com/tOHYka6v3P
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a demo of reverse phi movement (Anstis, 1970) (thinner arcs) Rings appear to rotate clockwise according to the change in luminance, though black or white arcs are stationary.pic.twitter.com/o7p1C32mRU
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Rings appear to rotate counterclockwise. (optimized Fraser-Wilcox, Type IIa) (Kitaoka, 2017) Kitaoka, A. (2017). The Fraser-Wilcox illusion and its extension. A. G. Shapiro and D. Todorović (Eds.), The Oxford Compendium of Visual Illusions, Oxford University Press, pp. 500-511.pic.twitter.com/ERJSpD4jyD
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Rogers, B., Anstis, S., Ashida, H., and Kitaoka, A. (2019). Reversed phi and the “phenomenal phenomena” revisited. i-Perception, 10 (4), 1–22. doi:10.1177/2041669519856906
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a demo of 'phenomenal phenomena' (Gregory and Heard, 1983) Rings appear to rotate to and fro according to the change in luminance, though black or white arcs are stationary.pic.twitter.com/no41QayyRk
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