Hebrew University of Jerusalem brain scientists have tapped onto the visual cortex of people suffering from congenital blindness by using sensory substitution devices (SSDs) – making it possible for them in effect to “see” and even describe objects. Video camera images are converted into “soundscapes,” using a predictable algorithm, allowing the user to listen to and then interpret the visual information coming from the camera.
http://www.jpost.com/Health/Article.aspx?id=257054