An illusion designed and developed at RuCCS' own Laboratory for Vision Research was a top-ten finalist in the 2012 Best Illusion of the Year (BIOTY) contest, among more than 60 entries from around the world. It was voted #4 at the annual BIOTY show.
You can read more about it and other illusions on the BIOTY web site - http://illusioncontest.neuralcorrelate.com/cat/2012/. The New Scientist also has an online article on it - http://www.newscientist.com/blogs/nstv/2012/05/best-illusions-of-2012-the-exorcist-illusion.html.
You can see it at http://www.youtube.com/watch?v=Lg3mbgjDgXc. If you forget, just visit YouTube and type "Exorcist Illusion".