London, October 24 : An expert at Oregon Health and Science University has identified an area of the brain tapped by people blinded early in life to develop better hearing than individuals with their visions intact.
Alexander Stevens says that blind people co-opt the medial occipital—part of the visual system that plays a crucial role in registering visual signals by setting the threshold at which they are noticed by the brain—to help detect sounds.
In a study, the researcher played a series of sounds to blind subjects, each of which was preceded by a cue. He scanned their brains as they heard the sounds.