@Letitia_Potorac sent me this great after-image illusion – enjoy!

19 comments

  1. May I suggest next time you post something like this you warn your readers that the illusion can cause nausea if you are subject to vertigo. I’m still feeling quite ill. Thank you.

  2. I didn’t see anything much except a bit of fuzz with a circle and the letter ‘o’ in it when I looked away. Is that what I was meant to see. I didn’t play the soundtrack. Sounds like I should be glad. The philosophy might have been a bit bogus, but putting it in the centre like that did make you focus on the middle.

  3. Seen this type of things before, usually with a spiral. But this one is much more effective! Very cool! (gave me a bit of a headache too though)

  4. Sorry but no real effect. It may be because of my glasses?
    But I saw only a very vague glow that was in the shape of the iris but only for a few seconds. I think the reverse color effects are better.

  5. Next time you see a waterfall, stare at one spot in the water for 20 to 30 seconds, then look at something solid and immobile – similar effect

  6. I like the way they make sure you keep staring at the centre by placing letters / words in it and asking you to read them out. My eyes usually move around too much with these things, but this one worked.

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