Voice analysis software may help diagnose PTSD in veterans

Doctors have long understood that people with psychiatric disorders may speak differently than individuals who do not have mental health problems, researchers note in Depression and Anxiety. While some previous research points to the potential for distinct speech patterns among people with PTSD, it's been unclear whether depression that often accompanies PTSD might explain the unique voice characteristics.

Marmar's team used an artificial intelligence program that"learns" how to classify individuals based on examples of speech.First, researchers recorded hours-long interviews based on questions often asked by clinicians to diagnose PTSD. Altogether, they interviewed 53 Iraq and Afghanistan veterans with PTSD related to their service as well as 78 veterans without the disease.

While the study did not explore the disease mechanisms behind PTSD, the theory is that traumatic events change brain circuits that process emotion and muscle tone that affect a person's voice, the study team writes. "I think more general, observable indicators of trauma are more relevant in such cases," Pies, who wasn't involved in the study, said by email."Noticing that a family member exposed to a recent trauma appears to be unusually irritable, aggressive, hyper-vigilant, or reports nightmares, flashbacks of the trauma, or appears socially withdrawn or depressed ... would warrant a clinical assessment.

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