Stratton's perceptual adaptation experiments a century ago have shown that the brain can adapt to different kinds of visual information, e.g. if you wear glasses that turn the picture upside down, you eventually adjust and start seeing it right side up again. And recently some people have been experimenting with augmented senses, like wearing an anklet with cell phone vibrators that lets you always know which way is north.

I wonder if we can combine these ideas? For example, if you always carry a wearable camera on your wrist and feed the information to a Google Glass-like display, will your brain eventually adapt to having effectively three eyes, one of which is movable? Will you gain better depth perception, a better sense of your surroundings, a better sense of what you look like, etc.?