Click on the link below. If you see the dancer moving clockwise you use the right side of your brain. If she appears to be moving counterclockwise you use the left side of your brain. I must only have half a brain because I can only see her moving clockwise.
http://www.news.com.au/dailytelegraph/story/0,22049,22535838-5012895,00.html
http://www.news.com.au/dailytelegraph/story/0,22049,22535838-5012895,00.html

