New Hearing Test For Military Personnel developed

by Hannah Joy on  July 20, 2017 at 12:14 PM Education News
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'Pure-tone audiometry' is used in the British military medical examinations to measure 'auditory fitness-for-duty'. The ability to hear individual tones of different frequencies in quiet surroundings is assessed by 'pure-tone audiometry', and does not take into account the communication and the noisy environments that military personnel encounter everyday.
New Hearing Test For Military Personnel developed
New Hearing Test For Military Personnel developed

Dr Daniel Rowan, who led the team that devised the test, said: "How good a soldier's hearing is can mean the difference between life and death. The problem with the pure-tone audiometry test is that it doesn't relate to the listening challenges that soldiers face in the line of duty.

"Pure-tone audiometry comprises hearing short beeps in quiet environments. This is not a true reflection of military life.

"Our new test takes into account what soldiers need to be able to hear and react to, and is based on input from them on the typical scenarios that they actually experience."

The new test - a speech-in-noise test - involves participants listening to military-style language over background noise at varying balances.

The structure of sentences, for example "Ready bravo", "go to green" and "eight now", was chosen after soldiers previously completed surveys to identify battlefield sounds and commands based on their importance, regularity and the number of soldiers who hear them in the line of duty.

The new test was developed and assessed in a study, funded by the MoD Royal Centre for Defence Medicine, and published in the International Journal of Audiology. It has since been implemented into a tablet app to make it easier and more cost-effective to deliver.

The test has been shown to accurately measure an individual's ability to recognise speech within background noise. The Royal Centre for Defence Medicine has funded a follow-up study to investigate whether the test can accurately predict soldiers' auditory fitness-for-duty.

Lt Col Linda Orr, Military Lead for hearWELL Collaboration and Consultant ENT, said: "We are delighted that this work done at the University of Southampton and supported by the Defence Medical Services as part of the hearWELL Collaboration is moving forward knowledge in this critically important area and we look forward to further translational outcomes in the future."



Source: Eurekalert

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