13:01 GMT +325 September 2017
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    Weird Science: Will Alzheimer's One Day Be Diagnosed via Smartphone?

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    A quick, inexpensive and super high-tech way to diagnose the most common cause of elderly dementia - Alzheimer’s disease - in its earliest stages is on the way. American researchers are working on a voice test that could one day allow for the early detection of the affliction via smartphone.

    Sona Patel, a professor at Seton Hall University in New Jersey, is developing a test that analyzes human voice samples and could eventually help doctors determine whether a patient has symptoms associated with brain degeneration. Her research is funded by a $380,000 grant from the National Institute of Deafness and Communicative Disorders.

    The technology itself is not brand new – it’s currently used to diagnose the early signs of Parkinson’s disease, wherein doctors compare samples to root out speech peculiarities caused by Parkinson’s.

    Patel says the symptoms of those two mental illnesses are quite similar in their early stages.

    "Your voice is really important," she said. "You react to [stimuli] with your voice automatically, without even realizing it… now, the question is if we can use [voices] to indicate other neurological disorders as well."

    “If patients can be diagnosed in an early stage of disease, treatment and drug therapies can start at that time, possibly slowing the disease progression,” Patel added.

    But current Alzheimer’s diagnosis methods leave many patients untreatable.

    "By the time the disease has progressed enough to be properly diagnosed, there is not much you can do."

    In Patel’s research, volunteers are connected to an electroencephalogram (EEG) machine and a microphone, and are asked to simultaneously pronounce sounds and listen to themselves though headphones.

    “They are asked to maintain a steady sound, but we make it tricky by changing the auditory feedback (the sound they hear) slightly, such as pitch or loudness, and measure their neural and voice responses.”

    If Patel’s work bears fruit, it will be possible not only to arrive at diagnoses fast, but also to prescribe appropriate treatments for patients at the early stages of dementia and slow the disease progression down.

    Patel also hopes to create a smartphone app that people may someday use for diagnosis themselves, without even visiting doctor.

    According to official data, there are over 44 million Alzheimer’s sufferers around the globe, and only one person in four is aware of his or her illness. The world spends some $605 billion on dementia treatment every year, according to Alzheimers.net, equivalent to one percent of combined global GDP.

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    Tags:
    medicine, smartphone app, research, dementia, Parkinson's disease, Alzheimer's disease, US National Institute of Deafness and Communicative Disorders, New Jersey, United States
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