Optical Illusion or Fake?

Posted: 29th December 2011 by Absurd Stories in Mind Games
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OK, look at the spinning girl. Do you see it spinning clockwise or counter-clockwise? I see it spinning counter-clockwise, but i was able to switch it in the other direction, its hard for many people. Give it a try.

The spinning girl is a form of the more general spinning silhouette illusion. The image is not objectively “spinning” in one direction or the other. It is a two-dimensional image that is simply shifting back and forth. But our brains did not evolve to interpret two-dimensional representations of the world but the actual three-dimensional world. So our visual processing assumes we are looking at a 3-D image and is uses clues to interpret it as such. Or, without adequate clues it may just arbitrarily decide a best fit – spinning clockwise or counterclockwise. And once this fit is chosen, the illusion is complete – we see a 3-D spinning image.

By looking around the image, focusing on the shadow or some other part, you may force your visual system to reconstruct the image and it may choose the opposite direction, and suddenly the image will spin in the opposite direction.

Original Source (Link)

  1. rivo says:

    it's not illusion! it spins clock wise for amoment and counter clock wise for another randomely..it's fake..

  2. Alec says:

    My interest for it died.

  3. Valerie says:

     
    It’s not related to left or right brain. The woman doesn’t spin in the opposite direction when you are directly staring at her without blinks or focusing away. It will when you change your focus or blink. If you are looking around the image for examples, you are focusing on the shadow or blinking may allow your visual system to reconstruct the image and it may spin in the opposite direction. 

  4. UKiss says:

     
    It’s not an optical illusion as the picture was initially set for that. I believed that as well until someone posted about the truth behind the picture.

  5. Michael says:

    Great trick, was able to change direction by looking at the calf muscle of the lady