Positive and Negatives...Gestalt too.

I was browsing around and I found a picture of what is known as Gestalt. It is a woman overall but if you look closer two of them can be seen. At a simple glance you'll see an old woman (an old hag if you please) and if you can focus a little bit more you'll see a young woman about to turn, all in the same image, pretty cool huh? Its all a psychological game, it's how two shapes can be hidden in one. These were given to us when we were kids. So I'm familiar with it.