Test For Stress "Rotating Snakes" - Akiyoshi Kitaoka Optical Illusion Against Stress Titchener Circles - Ebbinghaus Illusionc Multilayered Images - Joseph Jastro - Duck Or A Rabbit? The Rotating Circlet Feedback Illusion - Swivel Silhouette - Nobuyuki Kayahara Dots In Grid - Hermann's Illusion Multilayered Pictures - Girl Or An Old Woman? Misperceptions of Colors - Ted Adelson Rotating Silhouette In Both Directions
