Motion illusions aren't for everyone! If the images bother you at all, please visit another page.

Flashback to the sixties! I love visual illusions and I am particularly fond of images that trigger a false sense of motion within the image. For many motion illusions, fixing your gaze on one spot tends to stop the motion, while while allowing your gaze to wander, including beyond the edges of the image, facilitates the motion. You've probably noticed that reading this text also works.

Psychologists and neuroscientists study motion illusions for insights into the brain's visual system. The current consensus seems to be that certain kinds of luminance gradients, combined with the constant saccadic "jitter" of your eyes, cause motion-detecting neurons to fire, despite the static nature of the image. The psychologist Akiyoshi Kitaoaka has created a plethora of motion illusions.