– Nicolas Davidenko, Yeram Cheong, and Jacob Smith, University of California, Santa Cruz (USA)
Which way does the motion go? Is it up and down, or right and left? The truth is, the motion is entirely in your mind! In this demonstration, you first see a random texture moving up and down for 5 frames. After those priming frames, the remaining frames are completely random, but you will continue seeing up and down motion for several more frames. To convince yourself that this is all in your mind, try thinking to yourself “right left right left”. The same sequence of random textures will appear to move whichever way your mind decides.