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
- Local American Legion hosts fundraiser for PTSD awarenesson July 31, 2021 at 8:01 pm
The Eyota American Legion hosted the Post Traumatic Stress Disorder (PTSD) Awareness Ride Fundraiser Saturday. The Fundraiser consisted of a self-guided route for bikers, food and an auction. All ...
- 'We don't talk about it enough': Omaha pediatrician mom opens up about postpartum PTSD journeyon July 30, 2021 at 6:00 am
More than 30% of women suffer some symptoms of PTSD after childbirth. The most telltale symptom involves flashbacks of trauma mothers experienced before, during or after childbirth.
- 'You Can Forgive Yourself:' Molly Helps Vets with PTSD, New Study Sayson July 29, 2021 at 4:18 pm
In a clinical trial, 67% of patients with PTSD had no symptoms after undergoing treatment that combines an illicit medication with therapy.
- NFL Player Reveals He Has PTSD After Being Robbed at Gunpoint With Familyon July 29, 2021 at 1:22 pm
Baltimore Ravens cornerback Jimmy Smith said on Thursday he has been suffering from post-traumatic stress disorder ever since he and his family were robbed at gunpoint in February. "Going into the ...
- 'Glad We Lived': Ravens CB Jimmy Smith Says He Has PTSD After He And His Family Were Robbed At Gunpoint In LA In Februaryon July 29, 2021 at 11:34 am
Ravens cornerback Jimmy Smith revealed Thursday that he is suffering from post-traumatic stress disorder after he and his family were robbed at gunpoint earlier this year. Geoff Petrulis reports.
- Fired Fort Worth officer fighting to get job back as he battles PTSD, his wife sayson July 29, 2021 at 5:06 am
Fort Worth. A Fort Worth police officer fired for his abuse of medication and illegal use of a controlled substance will seek to reverse that decision on Thursday during a discipl ...
- The Future Is Looking Brighter for Treating PTSDon July 28, 2021 at 9:35 am
EMDR treatments have been shown to reduce PTSD symptoms or eliminate the diagnosis altogether. What it is: Text-messaging with a therapist could turn out to be an effective alternative to in-person ...
- PTSD May Play a Role in the Development of Lupuson July 27, 2021 at 9:01 am
The prevalence of PTSD was 10.74 (95% CI 9.37-12.31) per 1,000 among patients who were later diagnosed with systemic lupus erythematosus (SLE) compared with 7.83 (95% CI 7.42-8.27) per 1,000 among ...
- Yoga instructor tailors classes to veterans facing PTSDon July 26, 2021 at 10:01 pm
After a close friend who was a combat veteran with PTSD died in 2019, Ashley Ramsey began to use her certification as a trauma-informed yoga instructor to ensure that Tulsa ...
via Bing News