New research from a collaboration between Johns Hopkins University and the University of Maryland are turning the lights out on hearing misconceptions. You could call it the Ray Charles Effect. In their study, subjecting adult mice to temporary blindness resulted hearing improvement. Researchers saw actual changes in key neurons for hearing in the part of the brain that acts as a sensory switchboard for sensory information. It had previously been been thought that these neurons were not malleable in adults, that hearing could only be improved in children.