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Leicestershire Centre for Integrated Living


Date: 9/1/2019
Summary: A non-invasive hearing test could aid early detection and diagnosis of autism, according to new research.

Currently, children with autism spectrum disorder (ASD) are typically diagnosed at the age of four using tests that largely rely on speech.

 But now, researchers from Lake Erie College of Osteopathic Medicine in Pennsylvania are suggesting the key to early diagnosis could lie in the detection of hearing issues.

As such, they suggest using stapedial reflex testing, also known as acoustic reflex testing, which measures pressure changes in the middle ear in response to sounds, could be the solution. 

 The non-invasive test assesses a person's sensitivity and response times to a wide range of frequencies.

“Often people with autism suffer from hypersensitivity, meaning even relatively quiet sounds can feel like overwhelming noise,” says Randy Kulesza, professor of anatomy at Lake Erie College of Osteopathic Medicine. 

Newborn babies do currently have their hearing tested. However, Kulesza says those tests merely assess whether the child can hear on a pass/fail basis. 

Instead, he says stapedial reflex testing provides much more information about the types of dysfunction that may be present and would enable intervention to begin years before symptoms have even developed.

“Especially early in life, the brain is very plastic, meaning the right early interventions can literally train out those deficits,” Kulesza explains. 

The person might not be perfectly neuro-typical but such interventions can improve function,” says Kulesza.

 The researchers also note that hearing is critical to speech-language development, which can in turn also affect social-emotional development, something many children with ASD can struggle with. 

As a result, they say optimising auditory function could profoundly improve a person's quality of life. 

While there are obvious connections between ASD and hearing impairment, Kulesza admits more research is needed to understand how best to employ interventions for those who have auditory dysfunction.

One serious concern Kulesza shares is causing unnecessary stress to parents.

He emphasises acoustic reflex testing should not be presented as a diagnostic tool but that testing positive for auditory dysfunction could allow for tailored early intervention that will maximise their child's potential.

The research was published in The Journal of the American Osteopathic Association (JAOA).

Source: Independent 

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