Left and Right Hemisphere?

OK I stumbled across this image on the web the other day (I think it originates from the Daily Telegraph newspaper Sydney). It is a picture of a spinning woman, but there is a catch – she can be seen to spin both clockwise and anticlockwise.

The theory is that those who see the image spinning clockwise predominantly use the right side of the brain and are more “free thinkers”, whereas those who see the image spinning anti-clockwise use the left side of the brain and are more logic based thinkers.

When I first look at the image I generally see it spinning clockwise, which is not at all what I would expect. If I look away and back at the image repeatedly I can generally see it spin anti-clockwise also.

Just thought this may be interesting to look at.