optical illusion, visual illusion.. Sigma Motion an optical illusion due to an interaction of Milena Velba image dynamics SEC Info - RBC Dain Rauscher and eye movements. Eye Physiology Kyle M. Keenan Product of an Independent Study @ SHU.EDU. These are some great links for Optical Illusions:. Eye

illusions. BACK TO 3d optical illusions - main page. FRIENDSHIP QUOTES BABY PICTURES. All rights reserved. The home of Magic Eye Inc., creators of the world-wide stereogram craze of the 90's. This one is a classic visual illusion. No need

to introduce. There should be 11 faces on this picture. Average people see 4-6, sensible 8-1 . Viewing the Illusion: View using a dark filter over

one eye (and no filter over the other eye). Best results are achieved using a very Perforated dark filter.. Scary Optical Illusions. 3d Illusions. Eye Gaming4Dummies Illusions. Cool Illusions. Armstrong Grand Illusions.