< A demo of reversed phi motion > Rings appear to rotate clockwise constantly, induced by the change in luminance of ellipses and the surround. References: Anstis, S. M. (1970). Phi movement as a subtraction process. Vision Research, 10, 1411-1430.pic.twitter.com/fP5cANsRwt
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Rogers, B., Anstis, S., Ashida, H., & Kitaoka, A. (2019). Reversed phi and the “phenomenal phenomena” revisited. i-Perception, 10 (4), 1–22.
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Here is my webpage to demonstrate these demos. http://www.psy.ritsumei.ac.jp/~akitaoka/reversephi.html …
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