Hi,
I found an interesting link yesterday on the round table page of proj. Camelot
It is a dutch site and it contains this pic:
The explanation is that you can see the woman turn clockwise and counter clockwise.
Clockwise you use your right half of the brain ...
CCW you use your left half ...
You can practice flipping form one to the other ... I succeeded doing this by starting to look sideways and intentionally make
it turn the other way.
I don't know how it works because it looks convincing that one time she's on her left leg and when the direction flips she's on the other ?
Credits of course go to this website:
http://www.willenwijweten.nl
Cheers