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My webpage for reversed phi and related motion phenomena (motion illusion induced by changes in lumimnance) http://www.psy.ritsumei.ac.jp/~akitaoka/reversephi.html …
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Fascinating. Looking at one oval shows clear counterclockwise movement, while looking at the background creates the illusion of clockwise movement.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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