http://www.news.com.au/perthnow/story/0,21598,22492511-5005375,00.html
The Right Brain vs Left Brain test ... do you see the dancer turning clockwise or anti-clockwise? If clockwise, then you use more of the right side of the brain and vice versa. Most of us would see the dancer turning anti-clockwise though you can try to focus and change the direction; see if you can do it.
