fun little brain trick

http://www.news.com.au/heraldsun/story/0,21985,22556281-661,00.html

it was kinda tough for me to change her direction, but it's pretty trippy when you get it.

I don't get it. And the worst part is I'm seeing her with my right brain.

It's bogus, your mouse determines which direction it spins.

hardly.

i was going to try to let you do it on your own, but watch the shadow of her stationary foot. if you see it moving the other way eventually she will move the other way.

p.s. just because you don't understand something, doesn't make it bogus

No it doesn't.

i think the left/right brain this is bogus, but the test itself works. some people commented at the bottom of the page on how to see it, but it's still trippy when you do it.

So what am I missing?

If you click your mouse by the figures right head it will spin counter clockwise. If you then click the mouse by the left side of the head it spins counter clockwise...

Also, if you let it run long enough it changes back and forth on it's own after a while.

Only see it turning anti, can't make it turn clockwise...
But then, I was crap at seeing the pix Dan is talking about, too...

Ok, I went back and last night, when you left click on the right side it would change the spin direction. Now it doesn't work anymore... Odd. I seriously am not making it up...


However, You can make it change directions with just your mind as well.

No, because the way the image looked after clicking the image last night doesn't look the same as when you change the direction in your head.

Perhaps I did imagine it. But last night when I'd click on the pic, the image would twist to the left or right to about 50 or 60 degrees then would "spin" in the direction... Today, when you click on the image, only thing that happens is that you get a little circle slash icon, like that on a no smoking sign.

i'm gonna guess that someone did not go on the .gif last night and change how it works.

it's perception....but i suppose it could be your perception that it doesn't work.

It took me a few minutes to get the hang of it, but I can see her going clockwise and anti-clockwise now.

Indeed, if you take the gif file and break it down frame by frame, the figure is always moving clockwise, it's your brain that gets tripped up.

The figure can be seen either way. I've gotten to the point where I can maker her sway back and forth, but the strain of shifting perception makes me nauseous.

Really, nauseous?

Modified to have a half a second gap between frames instead of 0.03 seconds. You can see that it is always clockwise.

It's frustrating me because I'm usually quite good at "getting" illusions.

I honestly can't begin to comprehend that she would change directions. My brain is saying she's going clockwise and ONLY clockwise and I know that's not actually true.

Edit - I noticed right away that it appeared her shadow was going the other direction. But that didn't help me any. Bah.

No, your brain interprets it as either, but the image itself is always moving clockwise.

OMG! I got it! EEEEE!

I can only get her to go half a circle before she switches directions, but I'm so happy I can see why people think she goes a different way. Oh man I feel better now.

i can still see both ways when slowed down.

i think nick might be right though. you have to look at her heel and see when the very back of her foot is covered by the front of her foot. i'm not the one who made it so i have no idea, but it still freaks me out.

The image isn't actually spinning at all. Here's a link that explains it for anyone interested.

http://www.theness.com/neurologicablog/index.php?p=27