The NIH is investing millions to investigate voice analysis as a tool for diagnosing a wide range of diseases, including Alzheimer's, depression, and autism.
Most of us have two voice changes in our lifetime: first during puberty, as the vocal cords thicken and the voice box migrates down the throat. Then a second time as aging causes structural changes that may weaken the voice.
Vital signs like blood pressure or heart rate"can give a general idea of how sick we are. But they're not specific to certain diseases," says Yael Bensoussan, MD, director of the University of South Florida's Health Voice Center and the co-principal investigator for the National Institutes of Health's Voice as a Biomarker of Health project.
You or those around you may not notice the changes. But researchers say voice analysis as a standard part of patient care – akin to blood pressure checks or cholesterol tests – could help identify those who need medical attention earlier. Over the next 4 years, the Voice as a Biomarker team will receive nearly $18 million to gather a massive amount of voice data. The goal is 20,000 to 30,000 samples, along with health data about each person being studied. The result will be a sprawling database scientists can use to develop algorithms linking health conditions to the way we speak.
"The watch says, 'I've analyzed your breathing and coughing, and today, you're really not doing well. You should go to the hospital,'" says Bensoussan, envisioning a wearable for patients with COPD."It could tell people early that things are declining."
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