Certain vision-impaired individuals have the ability to use echoes from tongue or finger clicks to recognize objects in the distance, and some use echolocation as a replacement for vision. Research from the University of Western Ontario and colleagues around the world, is showing that echolocation in vision-impaired individuals is a full form of sensory substitution, and that vision-impaired echolocation experts recruit regions of the brain normally associated … Continue reading Study shows that human vision-impaired ‘echolocators’ can substitute echolocation for vision.