I've tried this a few months ago, and I couls see only the picture turning clockwise. But now, when I concentrate, I can make it turn counter clockwise. When I blink my eyes, the pictures turns clockwise again.

From what i see the woman spins clockwise while the shadows spins on the other direction causing the illusion. This is just a simple theory of mine but I might be wrong.

Yes, your theory is wrong :) I don't mean that it isn't what you can see (or what your brain perceives to see) but the figure isn't "rotating" in the first place.
Please remember that this is a 2D image, your brain is interpreting it into a 3D solid. The brain is creating the illusion that the figure is "solid" and that the figure and / or the shadow is rotating clockwise or anti-clockwise.

There is a good reason why the figure is in black. The illusion doesn't work if this was a real figure or if it was If we could see the actual surface of the figure.

No one has seemed to have noticed that depending on which "direction" the figure moves, the outstretched leg is different. If you see the figure rotating clockwise then the right leg is outstretched while if the figure is rotating anti-clockwise then it is the left leg that is outstretched.

ok lets see....

For Sport
Tennis, Basketball, Football I use my right hand
For Writing / Chop Stick I use my left hand but for Sissors i use my right hand o_O
basically my right hand is stronger but my left hand is more.... iono... more control? kinda...

so what brain do i use overall?

Multifunction, that's all. Meaning you got overall more control of of both sides of your brain.

Its not spinning at all.

This is an advanced and very well done form of an older optical illusion,



I don't have an animated version, but the idea is its two black boxes, the smaller one would shift back and forth in a manner so that it slows down slightly when it reaches the edges. this causes the brain to think its a 3d object, and creates a third invisible axis where the box is "swinging around" when in reality its just strafing.

The illusion comes from the two ways your mind can see this: either you will imagine a nonexistent Z axis where "it" swings behind itself first and then in front of itself ( you will hallucinate it swinging counterclockwise ) or you will imagine it with it swinging in front of itself first, causing it to appear clockwise. like xris said, it works because its black. Your mind creates a light source behind it and a 3d image is born from the shadows.

Its quite weird. At first i see that it is spinning anti-clockwise then i read some text when i go back again, it is spinning clockwise and i can't perceive it to turn ACW. So i go read some more and then it turn ACW. But i cannot control how i perceive it no matter how hard i try (I even got a slight headache looking at it). I have to leave it and come back to the image to get it change.

I can't see it atm >.<

I think i'll need the animated one.

If I understood you correctly, are you talking about the stereoscopic imaging?

From the same website where the original spinning dancer illusion came from (moillusions.com):

First i see clockwise and then become counter clockwise and then clockwise and so on..

I've seen this months ago and well I can get myself to switch between which way it spins but at first I always see it spinning clock.

It spins clockwise but if you pay attention to the shadow, it changes to counter-clockwise and back. Generally, this is just one of the many optical illusions on the site.

Yeah it's made to spin clockwise but you can still see it either way. Apparently like one of the frames is set where it looks like the leg is either showing the back side or the front side and that part is what confuses you.

When I first saw the image it was turning clockwise, but then after minutes of wracking my brain I was finally able to see it counterclockwise :eek:. Now I have the ability to see it clockwise, counterclockwise and half at will, though I still default to clockwise. :heh:

I remember this image, but can't remember which way it spun the first time I saw it. It started counter-clockwise for me this time though, but I can also alter it at will.