Akiyoshi Kitaoka is a Professor of Psychology at the College of Letters, Ritsumeikan University, in Kyoto, Japan.
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:
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.