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Troxler Fading Optical Illusion [Pic]

Follow the instructions to mess with your brain

1. If your eyes follow the movement of the rotating pink dot, you will only see one color, pink.

2. Green Catastrophe: If you stare at the black + in the center, the moving dot turns to green.

3. Now concentrate on the black + and soon all the pink dots should disappear.


Follow the instructions to mess with your brain. We”re in your skullz messin” with your brainz and blowin” your mindz.

[Total: 26    Average: 4.1/5]
15 Comments - View/Add
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Rating: 4.1
Category: Weird
Date: 04/29/13 05:33 PM

15 Responses to Troxler Fading Optical Illusion [Pic]

  1. Profile photo of kitteh9lives
    kitteh9lives Female 70 & Over
    8044 posts
    April 29, 2013 at 6:51 pm
    Link: Troxler Fading Optical Illusion - Follow the instructions to mess with your brain. We`re in your skullz messin` with your brainz and blowin` your mindz.
  2. Profile photo of 5Cats
    5Cats Male 50-59
    32822 posts
    April 29, 2013 at 8:06 pm
    O-kayz... Whyz?

    I know it`s an "optical delusion" but I wonder how it works... rods & cones?
  3. Profile photo of slobzs
    slobzs Male 30-39
    37 posts
    April 29, 2013 at 8:08 pm
    Ahhhhhh!!!! Brain.... is......melting!
  4. Profile photo of Angilion
    Angilion Male 40-49
    12387 posts
    April 29, 2013 at 8:27 pm
    5Cats: I thought it`s probably processing rather than hardware...so I looked it up.

    A bit of both, apparently.

    [quote">Clarke and Belcher (1962) showed that the saccadic displacement needed for a faded image to recover is too large to suggest a ganglion or preganglion origin of the fading. On the other hand, they failed to find binocular interactions of the luminance threshold for the fading, suggesting a precortical origin of the fading. They concluded, therefore, that Troxler fading most likely arises from the adaptation at LGN, the relay station between the retina and the cortical visual areas.[/quote">

    related experiment

    Our brains dynamically vary the weighting of sensory input, tuning out unvarying inputs. So the dots are detected by our eyes but ignored by our brains when we`re not looking at them.

    No idea
  5. Profile photo of Angilion
    Angilion Male 40-49
    12387 posts
    April 29, 2013 at 8:33 pm
    Gah, the cut-off <1000 characters is still here.

    No idea about the colour change, though.
  6. Profile photo of 5Cats
    5Cats Male 50-59
    32822 posts
    April 29, 2013 at 8:50 pm
    Just glancing at them I saw green flashes and pink dots.

    Following the instructions caused the same described effects on all 3 screens.

    I`m guessing it makes "colourblind spots" by the green cancelling out the pink before the eye can recover...

    Nice to have you "home" @Angilion! :-) Welcome back!
  7. Profile photo of carmium
    carmium Female 50-59
    6381 posts
    April 29, 2013 at 9:15 pm
    As advertised. Very cool. B-]
  8. Profile photo of OldOllie
    OldOllie Male 60-69
    15841 posts
    April 29, 2013 at 10:22 pm
    Nice.
  9. Profile photo of ferdyfred
    ferdyfred Male 40-49
    13631 posts
    April 30, 2013 at 12:10 am
    Oh im cooked now
  10. Profile photo of MikeyNiv
    MikeyNiv Male 18-29
    697 posts
    April 30, 2013 at 3:42 am
    whats the point in 3 gifs that all do the same thing
  11. Profile photo of 5Cats
    5Cats Male 50-59
    32822 posts
    April 30, 2013 at 7:23 am
    @MikeyNiv: Because you do 3 "experiments" with them. Then you can go back and re-do the same experiments with the earlier gifs, which now produce different results!
    That shows that it`s not a "video trick" but in fact something weird going on with your eyes/brainz. :-)
  12. Profile photo of Canoas
    Canoas Male 18-29
    427 posts
    April 30, 2013 at 7:52 am
    1. Ok..
    2. Obviously, there`s a poo ton of other illusions like this.
    3. WTF IS HAPPENING?!?!?!??!?!?
  13. Profile photo of Swaywithme
    Swaywithme Female 18-29
    3696 posts
    April 30, 2013 at 10:00 am
    I`m too f**kin stoned for this poo. haha
  14. Profile photo of YugureKage
    YugureKage Female 18-29
    1205 posts
    April 30, 2013 at 10:40 am
    damn I love these things!
  15. Profile photo of Twinklestein
    Twinklestein Male 30-39
    513 posts
    April 30, 2013 at 2:40 pm
    And if you look at a white screen immediately afterward, you see a ring of green dots.

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