While approaching the Rotating Tilted Line Illusion, the radial lines appear to rotate in counter-clockwise direction, whereas when receding from it, they appear to rotate clockwise. It presumably represents the simplest form of apparent motion illusions where self-motion is required for perceiving circular rotation

One Response to Rotating Tilted Line Illusion
Thank you to put my illusion on your blog. I hope you like it. If you are interested on that from a more scientific point of view you can read the articles related to this illusion that I wrote with my collegues:
Simone Gori, Kai Hamburger (2006) A new motion illusion: the Rotating-Tilted-Lines illusion.
Perception 35(6):853-857
Simone Gori, Arash Yazdanbakhsh (2008) The riddle of the Rotating Tilted Lines Illusion.
Perception 37(4): 631-635
Arash Yazdanbakhsh, Simone Gori (2008) A new psychophysical estimation of the receptive field size.
Neuroscience Letters 438(2): 246-251
You will find there also some graphic variations that give you a stronger illusory effect! The link to the PDFs version of m papers is on my webpage:
http://www.psico.univ.trieste.it/staff/infostaff.php3?pid=168&tinf=p
Thanks again to post my illusion!
Simone