Rotating Circles Optical Illusion
Jason Kottke,
Nov 30, 2020
What I find interesting about this is that the illusion is produced by changing the direction of arrows. This makes it one of the very few optical illusions I have seen where the illusion is produced by cognitive content - that is, by some kind of interpretation of the perception - and not just the experience of it (indeed, I'm not sure I have seen any before). One wonders whether we would experience the same illusion if we have not been educated to know the meaning of significant of arrows, or whether perhaps this meaning or significance is somehow an essential part of all perception.
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