I have seen plenty of visual illusions –both static and moving –but I have never seen a rotating human figure as an optical illusion. Took a while to even convince myself it was not a joke.
I did work it out in the end (after a hint). The secret –at least for me –was to concentrate in the bottom-right corner on the feet shadows and force my eyes to track the outer foot’s shadow the way I wanted it to go.

Wow,that’s amazing!
I’m a little sceptical about whether it works as a left brain –right brain test. I always test as very left brain and very logical but I could only see this figure going clockwise,which supposedly makes me right brain.
Mind you,it’s not just the test;I’m a little sceptical about the whole left brain –right brain theory.
I’ll have another look at it tomorrow and see if I can get it to go the other way. It’s late and I’ve had a few drinks –maybe that’s impairing my left brain function!
Caitlin,
I am with you on the left-right test. I got exactly the same response as you –left brain dominance but clock-wise rotation of the figure initially.
Maybe it is the rest of junk that is on the same page. Apparently,visual illusions are often sensitive to the surrounding space.
I could see both ways
how is this possible????