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