(if she's not moving, click on the picture...)

If clockwise, then you use more of the right side of the brain and vice versa. Apparently most people would see the dancer turning anti-clockwise, and you can try to focus and change the direction.
I could only see the dancer turning clockwise, but when I read something and go back to her, she turns anti-clockwise. Its amazing....
LEFT BRAIN FUNCTIONS uses logic, detail oriented, facts rule, words and language, present and past, math and science, can comprehend, knowing, acknowledges, order/pattern perception, knows object name, reality based, forms strategies, practical, safe
RIGHT BRAIN FUNCTIONS uses feeling, "big picture" oriented, imagination rules, symbols and images, present and future, philosophy & religion, can "get it" (i.e. meaning), believes, appreciates, spatial perception, knows object function, fantasy based, presents possibilities, impetuous, risk taking
http://www.news.com.au/heraldsun/story/0,21985,22556281-661,00.html