Study tests potential telemedicine approach
A specially designed computer program can help diagnose post-traumatic stress disorder (PTSD) in veterans by analyzing their voices, a new study finds.
Published online April 22 in the journal Depression and Anxiety, the study found that an artificial intelligence tool can distinguish – with 89 percent accuracy – between the voices of those with or without PTSD.
“Our findings suggest that speech-based characteristics can be used to diagnose this disease, and with further refinement and validation, may be employed in the clinic in the near future,” says senior study author Charles R. Marmar, MD, the Lucius N. Littauer Professor and chair of the Department of Psychiatry at NYU School of Medicine.
More than 70 percent of adults worldwide experience a traumatic event at some point in their lives, with up to 12 percent of people in some struggling countries suffering from PTSD. Those with the condition experience strong, persistent distress when reminded of a triggering event.
The study authors say that a PTSD diagnosis is most often determined by clinical interview or a self-report assessment, both inherently prone to biases. This has led to efforts to develop objective, measurable, physical markers of PTSD progression, much like laboratory values for medical conditions, but progress has been slow.
Learning How to Learn
In the current study, the research team used a statistical/machine learning technique, called random forests, that has the ability to “learn” how to classify individuals based on examples. Such AI programs build “decision” rules and mathematical models that enable decision-making with increasing accuracy as the amount of training data grows.
The researchers first recorded standard, hours-long diagnostic interviews, called Clinician-Administered PTSD Scale, or CAPS, of 53 Iraq and Afghanistan veterans with military-service-related PTSD, as well as those of 78 veterans without the disease. The recordings were then fed into voice software from SRI International – the institute that also invented Siri – to yield a total of 40,526 speech-based features captured in short spurts of talk, which the team’s AI program sifted through for patterns.
The random forest program linked patterns of specific voice features with PTSD, including less clear speech and a lifeless, metallic tone, both of which had long been reported anecdotally as helpful in diagnosis. While the current study did not explore the disease mechanisms behind PTSD, the theory is that traumatic events change brain circuits that process emotion and muscle tone, which affects a person’s voice.
Moving forward, the research team plans to train the AI voice tool with more data, further validate it on an independent sample, and apply for government approval to use the tool clinically.
“Speech is an attractive candidate for use in an automated diagnostic system, perhaps as part of a future PTSD smartphone app, because it can be measured cheaply, remotely, and non-intrusively,” says lead author Adam Brown, PhD, adjunct assistant professor in the Department of Psychiatry at NYU School of Medicine.
“The speech analysis technology used in the current study on PTSD detection falls into the range of capabilities included in our speech analytics platform called SenSay Analytics™,” says Dimitra Vergyri, director of SRI International’s Speech Technology and Research (STAR) Laboratory. “The software analyzes words – in combination with frequency, rhythm, tone, and articulatory characteristics of speech – to infer the state of the speaker, including emotion, sentiment, cognition, health, mental health and communication quality. The technology has been involved in a series of industry applications visible in startups like Oto, Ambit and Decoded Health.”
The Latest on: PTSD
via Google News
The Latest on: PTSD
- Scots war hero ‘treated worse than a terrorist’ after false arrest for ‘faking PTSD’ and dragged through courtson November 28, 2020 at 2:31 pm
A HERO ex-squaddie has been cleared of pension fraud — then told how he was treated worse than IS terrorists he fought. Alan Duncan, 53, hit out after being dragged through the courts for three ...
- 4 Tips for Effectively Managing PTSD Flashbackson November 28, 2020 at 7:00 am
I am almost 10 years post-intensive post-traumatic stress disorder (PTSD) and trauma treatment. Today I am 10 years older and a lot wiser in the ways of trauma and PTSD. Five years ago I just wanted ...
- Hospitalized twice and reeling from PTSD, 39-year-old South Dakota mother stays on oxygen after COVID-19on November 28, 2020 at 4:00 am
I thought about how scary it would be to have COVID-19, especially as a single parent and sole provider. My worst-case scenario was ending up in the hospital, and that’s ...
- Remote work could be silver lining of pandemic for some veterans, including those with PTSDon November 27, 2020 at 7:03 am
Remote work options, which have increased since the beginning of the COVID-19 pandemic, could benefit veterans with complex medical needs or PTSD.
- Sumter Co. deputies find missing man who suffers from severe PTSDon November 25, 2020 at 6:05 pm
Officials said Nicholas Howard was last seen walking away from a relative’s house on Kingsbury Drive on Monday evening.
- K9 Partners For Patriots Increases Ptsd Awareness With Help From Willie Nelsonon November 25, 2020 at 4:00 pm
Traumatic Stress Disorder (Ptsd) and prevent veteran suicide, K9 Partners for Patriots has produced ‘Too Sick to Pray’, a video featuring Willie Nelson's song of the same title from his Spirit CD, ...
- PTSD Amid Coronavirus Outbreak- How Pandemic can Trigger Iton November 24, 2020 at 3:19 pm
Post Traumatic Stress Disorder(PTSD), victims' initial symptoms include numbness, tiredness, and feeling off for a prolonged period. PTSD DIAGNOSED PEOPLE AFFECTED DUE TO THE PANDEMIC.
- Musical rehab program for IDF soldiers suffering from PTSD facing closureon November 23, 2020 at 11:41 pm
Between 10%-15% of injured soldiers suffer from PTSD, with about 4,000 people across Israel suffering from the condition.
- COVID Nurse: 'Many of Us Have PTSD'on November 22, 2020 at 3:24 am
Almost 1,400 frontline health care workers in the U.S. have apparently died of COVID-19, according to a joint investigation by British newspaper, The Guardian, and Kaiser Health News. One-third of ...
- COVID-19 exacerbates PTSD in Vietnam veteranon November 20, 2020 at 9:48 am
The U.S. Department of Veterans Affairs says about 30 percent of Vietnam veterans have had PTSD in their lifetime.
via Bing News