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Permalink Reply by Dallas the Phallus on October 3, 2009 at 6:35pm

Yes, does seem to fit with the concept of illusion. When I first saw this (a few weeks ago), I could only see her spinning clockwise, and then suddenly it happened, and she was spinning in the opposite direction.

Permalink Reply by sacha on October 3, 2009 at 7:09pm

I find this interesting:

"The image is not objectively “spinning” in one direction or the other. It is a two-dimensional image that is simply shifting back and forth. But our brains did not evolve to interpret two-dimensional representations of the world but the actual three-dimensional world. So our visual processing assumes we are looking at a 3-D image"

Taken from here: http://www.theness.com/neurologicablog/?p=27

The article also discusses the fallacy of the right-brain left-brain articles that appeared about this illusion.

Permalink Reply by Dallas the Phallus on November 21, 2009 at 1:57pm

I finally was able to get my brain to see her as moving back and forth, left to right. That looks like a neat site you linked to, but I am subscribed to so many already I can't keep them straight.

Permalink Reply by Kellesta Jones on June 15, 2010 at 10:12pm

WOAH! That's weird, I love illusions. I seen her going clockwise, and then as I relaxed my eyes I could see her moving counter clockwise, that's cool :)