What I meant was...
I can see both left and right rotation, although at first I could only see clockwise. Later, it became easier to switch, but I can't MAKE it switch, it seems to happen at random. I don't deny it might have something to do with left/right brain dominance, what I questioned was that this dominance had anything to do with the reasoning/creative functions of the brain. I think reasoning and creativity are connected, not physiologically determined and certainly not opposed somehow. I feel this is more of the CP Snow's "two cultures" idea, that somehow seems to be determined to convince us that reason and creativity are divorced. Personally, I believe it's a fraud perpetrated by those who couldn't hack the math in high school.