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From Minnesota Public Radio:
A new study suggests that a small area of the brain, just above the right ear, could be the key to understanding how post traumatic stress disorder works.

Researchers from the Minneapolis VA Medical Center say brain scans of PTSD patients show unusual activity in the part of the brain responsible for memory.

The same researcher team reported last January that they had developed a scan that can identify people with PTSD with 95 percent accuracy.

The researchers used a technique called Magnetoencephalography to measure magnetic fields in the brains of people diagnosed with PTSD. Eighty of the study subjects had active PTSD and 18 were in recovery. The researchers then compared those images with scans taken from 284 people who did not have PTSD.
Tom Berger is Chair of the National PTSD & Substance Abuse Committee for Vietnam Veterans of America. Berger says the study doesn't include anyone who suffered from traumatic brain injury.

"What about people who have suffered a loss of their right temporal lobe, but still continue to have PTSD?"

The V.A.'s Brian Engdahl says future studies will include veterans with mild traumatic brain injury. But he says it was important for his team to examine relatively uncomplicated PTSD patients first.

The study is published in the Journal of Neural Engineering. The research was funded by the U.S. Department of Veterans Affairs.

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