Is it a

Duck or a

Rabbit?

Expanding Brains

Paul Grobstein30 August 2008

http://commons.wikimedia.org/wiki/Image:Worried_little_girl.jpghttp://mathworld.wolfram.com/Rabbit-DuckIllusion.html

I see a duck but my friend Carlos sees a rabbit.How come?

What I see depends on my brain

http://serendip.brynmawr.edu/bb/kinser/images/humanbrain7.jpgwww.valdosta.edu/~mtrejo/topic.html

Maybe Carlos and I have different brains

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

Maybe Carlos and I have different brainsbecause our parents are different

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

Maybe Carlos and I have different brainsbecause we’ve had different experiences

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

Maybe Carlos and I have different brainsbecause we’re looking from different perspectives

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

I see a beak and then an eye, and then a neck. So it must be …. a duck.

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

beak eye

neck

Maybe Carlos sees a nose first, and after that, an eye,and then some ears.So it must be a …. rabbit

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

ears

noseeye

Hey, I wonder if I could look at the picture the way Carlos does?

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

ears

noseeye

(Picture of girl needs to be flipped so she looks left)

Yep, now I can see a rabbit OR a duck!!!!

And I’ll bet Carlos can too …

http://ztirfps.blogspot.com/2008/03/photoshop.htmlhttp://www.naturephoto-cz.com/wild-rabbit:oryctolagus-cuniculus-photo-6264.html

beak eye

neck

I see a duck but my friend Carlos sees a rabbit.How come?

Because our brains are different

And we can use our differences to expand our brains. So we can all seemore than we could see before.

Try it yourself ….

What does your brain see?What does someone else’s brain see?Can you change your brain so it can see both?

What does your brain see?What does someone else’s brain see?Can you change your brain so it can see both?

http://mathworld.wolfram.com/YoungGirl-OldWomanIllusion.htmlhttp://www.ruf.rice.edu/~pomeran/AlumniCollege2004Imagelist.htm

You can find lots more things to practice with at http://serendip.brynmawr.edu/exchange/ambigfig