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Group Description

Moviscrolliosis is an optical illusion that occurs when you scroll up or down on an image, and it appears to come towards you or retreat from you. The term was introduced in the discussion on this shot from JudyGr.

We’re not entirely sure what creates a shot with moviscrolliosis, but we noted that the most effective buildings have strong perspective (almost always vertical), consistent window patterns and high contrast between the windows and the surrounding building so that when you scroll up or down your eye is tricked into thinking that the building is changing shape rather than the image scrolling. Frame-filling shots of repeating arrays work particularly well, as there are no edge details to spoil the illusion.

Skyscrapers are obviously likely candidates to produce this effect, but we welcome any shot of any subject that produces an innyouty, shrinkygrowy or indeed swirlyroundy effect from an uppydowny or sideysidey motion.

No limits!

Hints for observing moviscrolliosis
If you are trying to see moviscrolliosis, but finding that it isn't happening, try viewing different sizes of the image, or reducing the size of the browser window. You can also try changing the speed of your scrolling, or scrolling rapidly up and down on a central part of the image.

Another tip is to avoid staring directly at the images. The movement-detecting cells in our retina are located primarily towards the edge of our visual field, and people often find that the effect is stronger when viewed "out of the corner of the eye". Try staring at the moving scrollbar, rather than at the image itself.

Moviscrolliosis/ Images that appear to change as you scroll them. Get yours at flagrantdisregard.com/flickr

Additional Info

  • Accepted content types: Photos, Videos, Images, Art, Screenshots
  • Accepted safety levels: Safe
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