Ok I have solved the puzzle! If you imagine that you are looking at her from slightly above horizontal (imagine you're taller than her), than she looks like she is spinning clockwise. If you imagine that you are looking at her from below, as if she was above you and spinning on a glass floor, then it looks like she is spinning counter clockwise. It all has to do with the heel. If you are looking at her from above, you wouldn't be able to see the bottom of her heel if she was spinning counter clockwise.
Same goes for her raised foot. Scroll down until you can just see the foot dropping into and out of view. If you're looking at her from below, the foot would drop into view when it is behind her other leg. If you're looking at her from above, the foot would drop into view when it is in front of her other leg.
So therefore I have determined that this test does not determine left brain/right brain, but rather, your tendency for submission to or dominance over women. If she is spinning counter clockwise, you are pussy whipped. If she is spinning clockwise, you are a wife beater. Way to go, you!