|The researchers in the large anechoic chamber|
The researchers, including Daniel Rowan, used Diane Marks (among other blind and sighted volunteers) for their experiments. Diane lost her sight 16 years ago.
Bats and Dolphins are well known to use echolocation to navigate through the dark and the ocean very effectively. The purpose of Rowan's experiments was to determine how effective humans can be in learning the same techniques that bats and dolphins use. For these experiments, Rowan and his team built a special large anechoic chamber to demonstrate that both blind and sighted people can use sound to locate objects (see video for details). They also determined that some people are better at locating the source of sound than others, however, they think that the ability to track the location of sound gets better with more experience and feedback.
Do watch the video at the source link (itv) to learn more about these experiments!
Dolphins helping blind people to pinpoint sounds. http://t.co/jCg1rVwEug @RNIB
— ITV News Meridian (@itvmeridian) June 19, 2013