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
- Police officer designs new shoe to help first responders battling PTSD on May 20, 2019 at 9:05 pm
(CNN/KGAN) - Post-traumatic stress disorder comes in many forms and affects many people differently. Some proceeds from the shoe will go to The Code 9 Project, which focuses on getting all first ... […]
- Police officer designs shoe to help combat PTSD on May 20, 2019 at 4:54 pm
PTSD: Post traumatic Stress Disorder. It's something that impacts everyone differently. For one police officer out of Iowa it's an issue that hits very close to him. "There's a lot of things that are ... […]
- PTSD docs at Emory see military trauma first-hand on May 20, 2019 at 4:26 pm
FORT BENNING, Ga. — The group at the US Army’s “home of the infantry” was not exactly in its comfort zone. “I’ve never held a gun before so I’m pretty nervous about it,” said Megan Goodlin, a social ... […]
- Officer designs new shoe for help with PTSD on May 20, 2019 at 12:28 pm
(CNN) - Police officer designs shoes for a fundraising campaign to help first responders dealing with PTSD. ... […]
- Not Just For Soldiers: Civilians With PTSD Struggle To Find Effective Therapy on May 20, 2019 at 11:40 am
Lauren Walls had lived with panic attacks, nightmares and flashbacks for years. The 26-year-old San Antonio teacher sought help from a variety of mental health professionals — including spending five ... […]
- Former Torrington police officer claims city failed to accommodate his PTSD on May 20, 2019 at 7:53 am
TORRINGTON — Former police officer Jason Cooling has sued the city, claiming the Police Department failed to appropriately accommodate his efforts and created a hostile, threatening work environment ... […]
- Come out May 25 to help vets face PTSD, prevent suicide on May 20, 2019 at 4:12 am
Heads up! Don't be shocked if you see hundreds of motorcycles winding their way along the 22 miles of city streets between Waterside in Norfolk and Bayside Harley-Davidson in Portsmouth on Saturday. ... […]
- What if a blood test could reveal PTSD in a patient -- and the best treatment? on May 20, 2019 at 2:01 am
Imagine having flashbacks. Fear. Severe anxiety. Sleeplessness. A mind that just won't let itself turn off. Air Force Veteran Linette Eady experiences those things. Every night. And she has for ... […]
- 'At a glance, it does look ridiculous' | Therapist swears by innovative PTSD therapy on May 19, 2019 at 7:00 am
ALEXANDRIA, Va. — MaryAlyce Torpy, an Alexandria-based therapist, said many of her patients are skeptical at first of the innovative therapy approach she uses. "I think I best heard it from a client ... […]
- In battling PTSD, the strength of the wolf is the pack on May 19, 2019 at 2:00 am
Carol Bentzlin had been married 13 months to the day when two Marine casualty officers showed up on her doorstep. The year was 1991, but Carol remembers it like it was yesterday. "I ran," Carol said. ... […]
via Bing News