Monday, November 12, 2007

Right Brain vs. Left Brain Test

The Right Brain vs Left Brain test ... Go to this link and watch the dancer moving. Is she turning clockwise or counter-clockwise?

For serveral days now, I could only see the dancer turning clockwise and wasn't convinced it could be otherwise, but I was just able to get her to switch directions and could see her turning counter-clockwise by staring at her feet for awhile to trigger the switch in directions, and I can now get my mind to adjust and go back-and-forth..... from clockwise to counter-clockwise.... by staring at her feet......

Pretty amazing, comments welcome.

(HT: Heidi Stinson)

12 Comments:

At 11/12/2007 6:24 PM, Anonymous Anonymous said...

Now that is one heck of a cool illusion. It's easy to reverse the direction of the dancer if (like Mark said) you concentrate on her feet.

I found it easiest to get her to change direction by concentrating on the foot that she is spinning on. Hint: watch her toes.

 
At 11/12/2007 6:36 PM, Anonymous Anonymous said...

This image has been hashed and re-hashed at least 5 times on other blogs that I read. It isn't an optical illusion, it spins one way for a while, then switches direction.

skh.pcola

 
At 11/12/2007 7:19 PM, Blogger Thomas Blair said...

Anon 6:36,

You're right about it not being an optical illusion, but what you describe as switching directions is your brain adjusting the way it creates a 3-D image out of a 2-D image. The video is not on a timer or anything. It's all about how your mind is rendering the image using the clues available. I've found that I can quickly make her switch directions by blinking my eyes as her sweeping leg covers the pivot leg.

 
At 11/12/2007 7:29 PM, Anonymous Anonymous said...

Sorta all true. She's been spinning out there for some weaks now. Try pointing your cursor at her feet. You can make her change directions on a dime.
buck

 
At 11/12/2007 8:31 PM, Anonymous Anonymous said...

Folks, it is an illusion. It might not be an optical one but it is an illusion.

Download the gif file and open it up in an editor that allows you to see the individual image frames, just to see that the frames don't reverse. Then fire it up locally in your browser and see for yourself.

 
At 11/12/2007 9:57 PM, Anonymous Anonymous said...

You guys have a foot fetish?

 
At 11/14/2007 11:14 AM, Blogger Seenivasan said...

this is cool. I could see her switching the direction. initially i could see her switching only on clockwise though.

 
At 11/17/2007 8:45 PM, Anonymous Anonymous said...

Both sides of the brain.

The image doesn't move for me. Is there a twist? I'm ambidextrious (feet and hands).

 
At 11/17/2007 9:23 PM, Blogger Thomas Blair said...

Anon 8:45,

You have to click the link. The pic on the post is a single frame still.

 
At 11/18/2007 5:17 PM, Anonymous Anonymous said...

I think that I am going with the no brain theory. I see a picture. It does not move or appear to move. I do not see the illusion of movement.

I think that no brain should have been an option!!

 
At 11/18/2007 6:13 PM, Blogger Thomas Blair said...

Anon 5:17,

You have to click the link. The pic on the post is a single frame still.

 
At 11/22/2007 12:30 AM, Blogger M. said...

I can see her moving in both ways :p

 

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