Why Deaf People Have Other Sharper Senses
Most people who experience hearing loss will have sharper ability in other senses , usually in the sense of vision. However, there is no explanation of how and why this happens.
But a recent study by Canadian researchers, which have been published in the Nature Neuroscience journal, can show how people who are born with hearing loss have more capability in the sense of vision.
“A brain is very efficient and will not let anunused space wasted just like that,” said Dr. Stephen Lomber, lead researcher from the University of Western Ontario, Canada.
Dr Lomber explains that the study does show that deaf people with a disorder in the brain regions which are usually associated with peripheral hearing will have an increase in other brain regions, which is the peripheral vision.
This is what makes deaf people have a sharper sense of vision than people with normal hearing.
“If the auditory cortex or the brain region that processes sound information are not active, then the brain will increase the ability of peripheral vision, which is associated with a sense of vision,” explained Dr Lomber.
Dr Lomber also added that the brain will compensate or offset the loss with other useful enhancements.
“For example, if you’re deaf, you will have the ability to see another car coming from far away in your peripheral vision. You can not hear, but you are able to accurately detect how fast an object moves with the eye,” explained Dr Lomber.