Photo negative illusion
By: Lydia B
After looking at the white side, you should see the image of the person in color. Your visual system is constantly processing things and can fool you or create illusions. This type of illusion is called a negative afterimage. The picture forces your eyes to fixate on the dot (Laura Galloway’s nose). When you look from the first image to the white surface, the photoreceptors (structures in a living organism that respond to light falling on them) that become adapted no longer signal properly, but the remaining photoreceptors surrounding the adapted photoreceptors strongly signal and your colored vision kicks in. The negative colors then turn to normal colors.
"Your Brain Develops The Negative – Webvision." Your Brain Develops The Negative – Webvision. N.p., n.d. Web. 18 Mar. 2015.
"Yellow Dot Optical Illusion." RSS. N.p., n.d. Web. 16 Mar. 2015.