Now that was weird.

After reading some of your other responses (and going out, teaching Pilates and having dessert ) I looked at it again. Clockwise. Then, I read the text on the page and really focused on thinking about what the text was saying. Counterclockwise. But when I went back to looking at her, she switched directions on me again.

I have a feeling it's more about which side of the brain is predominating at the moment you're looking at the image, not which side predominates generally. Just the fact of it being an image - and having movement - and being a dancer on top of that - maybe is going to bias the test toward the right brain? This just suggested itself to me when I had a similar experience to LTBC's.