A friend of mine pointed out the above article about testing left-brain/right-brain dominance. The idea is that judgments can be made about hemispherical dominance according to which way someone perceives the spinning of the dancer. Those who see it as a clockwise rotation are right-brain dominant (feeling and big picture oriented) and those who see it as counter-clockwise are left-brain dominant (logical and detail oriented).
The thing I wonder about is the fact that throughout the course of reading the article, I found myself seeing it both ways, clockwise and counterclockwise. I really wish this article would provide more evidence for the claims it makes about the relationship between this image and right/left-brain dominance. If it’s true, it’s a pretty cool way to see how your mind works. Either way, though, it’s an interesting exercise to try switching back and forth between directions. (Hint: Cover most of the image and focus on her spinning leg)