Drawing using devices intended as metaphors: (top right) fingers with an "imaginary aura of pain around," by Jan (early, totally blind); (top left) a hammer hitting a table and making a loud noise, indicated by the lines emerging from the collision area and "bouncing" around the room, by Joan (early, light perception); (bottom) smelly garbage, with lines indicating the smells wafting up from the garbage, by Jay (early, totally blind).