DOES THE BRAIN HAVE ITS OWN NIGHTVISION CAMERA?
Even when it’s completely dark, the brain knows exactly what our hands are doing. U.S. researchers have discovered that the brain can send that information to the eyes, even in the total absence of visual stimuli. It turns out about 50% of us can “see” our own hands moving in the dark. Until now, most researchers dismissed the phenomenon described here as a mere illusion. But psychologist Kevin Dieter of Vanderbilt University lays out the facts: “What we normally perceive as sight is really as much a function of our brains as of our eyes. We get such reliable exposure to the sight of our own hand moving that our brains learn to predict the expected moving image. It’s a learned association.”