The Purple Nurple Optical Illusion

Posted by Alex in Everything Else, Pictures on February 27, 2008 at 6:52 am


WARNING: IF THE IMAGE BELOW MAKES YOU DIZZY, LEAVE THIS PAGE, SCROLL DOWN OR JUST LOOK AWAY.


The Purple Nurple Optical Illusion by Walter Anthony

Neatorama reader Walt Anthony shares with us his blog, geared to educate kids about optical illusions. Walt did a good job in explaining the illusions in the post:

Anomalous Motion Optical Illusion aka Peripheral Drift Optical Illusion is characterized by anomalous motion that can be observed in peripheral vision. [...]

Keep in mind that this is a static image. It is not animated in any way. but as your vision moves back and forth the center area seems to be moving toward the center (contracting) and the outer edges seem to be moving away (expanding) from the center. Also worth noting is that if you fixate on a point in the center and don’t move your eyes this anomalous motion will stop.

I also applaud him for giving credit where credits are due – most optical illusion blogs rip off images without giving any clue as of the artist.

Link to more examples of Anomalous Motion Optical Illusion | Optical Illusion 4 Kids – Thanks Walt!


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COMMENT

14 comments to "The Purple Nurple Optical Illusion"

  1. Steve Higgins
    February 27th, 2008 at 8:51 am

    I'm glad you posted this illusion. When I titled it the Purple Nurple I had no idea where the heck it came from. Stupid internet stealing people ;)

  2. Daniel Kim
    February 27th, 2008 at 9:02 am

    I request that you remove the graphic from your main page, add a warning, and include a link, instead. The picture may trigger seizures in those susceptible to such things (like some in my family).

    If you want to include the graphic in the front page, tone down the contrast and brightness levels until it no longer triggers the effect. This would give some hint of what the link will show.

    Sorry for being such a downer, but it's an important issue for me.

    Thanks

  3. Justin
    February 27th, 2008 at 11:17 am

    whooaaaa....

  4. sd
    February 27th, 2008 at 12:27 pm

    i am saving this for when im high!

  5. roger
    February 27th, 2008 at 2:31 pm

    I was hoping that the illusion would still work when I printed it out and stuck it on my fridge. Alas, it did not :(

  6. heather
    February 27th, 2008 at 3:27 pm

    heh...trippy

  7. Andi
    February 27th, 2008 at 6:01 pm

    I looked at that after overeating. Not a good idea.

  8. MoniA
    February 27th, 2008 at 9:11 pm

    I kept thinking it had to be a moving gif so I copied it in photoshop and took a look. it kept moving just the same. This is a trip. wow

  9. Braintrove.com
    February 29th, 2008 at 7:03 pm

    Very cool.

  10. hey
    November 9th, 2008 at 8:46 pm

    the site http://www.famousillusions.tk is amazing! check out those ones

  11. Caleb Austin
    May 26th, 2009 at 12:21 am

    The only reason why it looks like its moving is because it actually is. look at the file extension *.gif
    its an animated picture...

  12. -dan z-
    September 2nd, 2009 at 10:25 am

    "if you fixate on a point in the center and don’t move your eyes this anomalous motion will stop." Or any other spot on or near the image.

  13. tatooz
    September 19th, 2009 at 10:15 am

    i got dizzy like so dizzy

  14. Ectara
    September 27th, 2009 at 10:01 am

    Being of the Graphics Interchange Format does not mean it is animated. Did you bother to check to see if it had more than one frame before accusing it of being a trick?


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