my brain is spinning

[cluebyfour]

I thought this optical illusion (via Marginal Revolution) was fascinating and wanted to test its hypothesis.

Take a careful look at the picture, then answer my first poll in nearly a year!

Poll cluebyfour's random poll: spinning dancer test

Comments

[deadpansev]

It bounces back and forth for me. Barb pulled it up and asked me about it. If I were just looking at it it would go counter-clockwise, as soon as I started talking about it, it would go clockwise and then barb started reading the text to me and it started switching every second.