Upon playing this video, the introduction warns the viewer as follows: Be aware! This video may cause temporary hallucinogenic effects. But please do not be afraid, these effects usually last a few seconds. The warning is overly dramatic, but it does produce a pretty amazing effect. And in case you are worried, rest assured that […]
The vibrant flowing colors of this peripheral drift motion illusion appear to swirl and move as your eyes move around the image. For another great motion illusion, have a look at the Psychedelic Motion Illusion. (via Kaia Nao)
Take a look at the spiral created by Gianni A. Sarcone below. Does it appear to be moving in a clockwise direction? Now start on the outside and follow the lines that make up the spiral around in a clockwise direction. Do they spiral to the middle? Or is this really made from a series […]
The yellow arrows on the purple background below appear to move independently to the left and the right. Specifically, the top and bottom rows of arrows seem to have the most significant amount of motion for me. If you are having trouble getting this static image to move, try staring at it while moving your […]
Over the past few months, we have had several requests for a mobile version of An Optical Illusion. We listened. Now you can view a simplified version of the site on your mobile device. At the bottom of the layout, you will also have the option to turn the new layout off and view the […]
In this work from Professor Akiyoshi Kitaoka, each of the four fields appears to expand and move toward you. Like all of these motion illusions, the more you move your eyes around the image, the stronger the effect. Try to hold your eyes still by looking at one location and the movement will cease. Visit […]
The two rectangles made of purple “plus” symbols appear to expand and contract. The effect is greatly enhanced by looking back and forth at each of the rectangles. This moving pattern was designed by author, artist and researcher Gianni Sarcone.