When the Rotating Snakes illusion is presented in grayscale, most people still perceive motion, but less than in the original color version. Tania Lombrozo hide caption toggle caption Tania Lombrozo Opinion 13.7: Cosmos And Culture The Rotating Snakes Are All In Your Mind March 24, 2014 • Illusions aren't just for fun; they also help reveal how human vision works. Commentator Tania Lombrozo turns to an expert for an explanation of why we perceive motion where none exists.
