The most shocking illusion ever!

By Liger
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Grand Master

NightmarE D

Posted
Posted

well this is how it works. pretty simple. This is what you see now

post-698-1137739799.jpg

this is what you see later:

post-698-1137739849.jpg

The light is part of the image is "burned" on our cornea or something. All i did was reverse the image in paint and that's what we get. :whistle: not so scary anymore tho huh but it's all how we see things and all that. The brain is a weird organ. LOL

Seen this years ago but you coulda been a nice person and not have blown it for anyone else who will view this thread :rolleyes:

Experienced

Arch

Posted
Posted

Seen this years ago but you coulda been a nice person and not have blown it for anyone else who will view this thread :rolleyes:

Don't blame him, because if he didn't ruin it for you then I would have.. Or someone else here would have. It is a tech forum after all, I think many people are interested in how things work.

I love these optical illusion threads at 3 A.M.

Grand Master

Obi-Wan Kenobi

Posted
Posted

Seen this years ago but you coulda been a nice person and not have blown it for anyone else who will view this thread :rolleyes:

lol....what I was trying NOT to do......but still, good stuff! It doesn't matter how old it is, or how technical it is...... it's still cool!

Proficient

Starchild

Posted
Posted

That illusion still amazes me, i wonder how or why it happens.

It's quite simple actually.

Simply put, the neurons in the brain for vision are colour-opponent. This means that they either detect red vs. green, yellow vs. blue, even light vs. dark. It is a constant struggle, a tug-of-war if you will, between the two sides. In this example, there is a tug-of-war between the stimulus received from light and dark parts of the image. The stimulus received from the light parts of the image overpower the dark opponent of that neuron (light is winning the tug-of-war), and the stimulus received from the dark parts of the image overpower the light opponent of that neuron (dark is winning the tug-of-war). Once the stimulus is removed (i.e. you look away), it takes time for the neurons to reset so that neither light nor dark is winning, and to do so, the losing opponent must pull harder. Thus, you see the inverse of the image.

Motion also works like this. Ever stare at a waterfall, and when you look away, it seems everything is moving up? Or, ever stare out of a moving train, and when the train stop, it seems like you are moving backwards?

Grand Master

Obi-Wan Kenobi

Posted
Posted (edited)

I hate these things because I end up seeing them for 2-3 minutes after I'm done... I think I saw this almost 10 years ago... LOL.

pretty close as far as the years go.........ballparking it!

Edited by obiwankenobi
Grand Master

Obi-Wan Kenobi

Posted
Posted

Nevermind, he changed what he said, therefore ruining my comment.

aww, am I too fast for ya? now sit back and get mad....lol

edit: Part of my post was to a PM, in case nobody else caught it.....I sent the correct PM, although part of it showed up here....my bad.......

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