vOICe sensory device: An alternative to invasive treatment for blind people

A device that trains the brain to turn sounds into images could be used as an alternative to invasive treatment for blind and partially-sighted people, researchers at the University of Bath have found.

The vOICe sensory substitution device is a revolutionary tool that helps blind people to use sounds to build an image in their minds of the things around them.

A research team, led by Dr Michael Proulx, from the University's Department of Psychology, looked at how blindfolded sighted participants responded to an eye test using the device.

They were asked to perform a standard eye chart test called the Snellen Tumbling E test, which asked participants to view the letter E turned in four different directions and in various sizes. Normal, best-corrected visual acuity is considered 20/20, calculated in terms of the distance (in feet) and the size of the E on the eye chart.

The participants, even without any training in the use of the device, were able to perform the best performance possible, nearly 20/400. This limit appears to be the highest resolution currently possible with the ever-improving technology.

Dr Michael Proulx said: "This level of visual performance exceeds that of the current invasive techniques for vision restoration, such as stem cell implants and retinal prostheses after extensive training.

"A recent study found successful vision at a level of 20/800 after the use of stem cells. Although this might improve with time and provide the literal sensation of sight, the affordable and non-invasive nature of The vOICe provides another option.

"Sensory substitution devices are not only an alternative, but might also be best employed in combination with such invasive techniques to train the brain to see again or for the first time."

The findings are reported in the paper "How well do you see what you hear? The acuity of visual-to-auditory sensory substitution," published in the journal Frontiers in Psychology, as part of a special topic in Cognitive Science on synaesthesia research.

Source:

Comments

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
Post a new comment
Post

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.

You might also like...
Scientists map molecules within human brain for first time