Psychology professor Akiyoshi Kitaoka recently posted this optical illusion on his Facebook page, which then made it to Twitter and quickly went viral through a large number of shares and retweets.  If you look at this pattern, you will be able to find 12 black dots.  The problem is, most people are completely unable to […]

In this variant of the Hermann grid illusion created by Professor Akiyoshi Kitaoka, illusory blue dots can be seen in the white circles where the squares intersect.  This phenomenon was first reported in 1870 by Germany physiologist Ludimar Hermann.  The blue dots cannot be seen if you look directly at one of the white circles.  […]