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Akiyoshi Kitaoka is a Professor of Psychology at the College of Letters, Ritsumeikan University, in Kyoto, Japan.
He's a creator of some of the most devilish, brain-breaking optical illusions on the internet.
His latest effort is no different.
The concentric circles - which are circles that have their centres at the same point - are meant to look like spirals.
And yes, it works:
Picture: Akiyoshi Kitaoka/edited by indy100
Our poor eyes.
He has also been recently improvising illusions in the real world, not just through computer generated images:
For more information on how the illusions are made (and for hours of torturing your eyes) you can visit his website, here.
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