A prototype vibrating vest which could change the way deaf people
understand speech by creating a new route to the brain, has been
developed by researchers at Baylor College of Medicine in Texas.
The device works on the
concept of sensory substitution - finding alternative ways for one sense
to be experienced by another - and is fitted with a series of mobile
phone motors which vibrate in specific patterns depending on what is
being heard.
BBC Click's Jen Copestake reports.