Kanizsa Polygon Illusion

We see a shape defined by the missing parts of the disks at its vertices. This optical contour illusion was found by the Italian psychologist Gaetano Kanizsa in 1955.


  • [Snapshot]
  • [Snapshot]
  • [Snapshot]
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.