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PTSD After Head Injury May Signal Brain Changes
Study found area linked to emotions was larger in soldiers who had both conditions

By Robert Preidt

THURSDAY, July 13, 2017 (HealthDay News) -- Scientists report they have discovered biological differences in the brains of head injury patients with post-traumatic stress disorder (PTSD).

Specifically, the area of the brain that controls emotion -- the amygdala -- is larger than normal in those who develop PTSD after a brain injury, researchers said.

"Many consider PTSD to be a psychological disorder, but our study found a key physical difference in the brains of military-trained individuals with brain injury and PTSD," said Dr. Joel Pieper, from the University of California, San Diego.

"These findings have the potential to change the way we approach PTSD diagnosis and treatment," Pieper added.

The study included 89 current or former members of the U.S. military with mild traumatic brain injury. Brain scans revealed that the amygdala was 6 percent larger, particularly on the right side, in the 29 patients who also had significant PTSD.

Together, the right and left amygdala help control emotion, memories and behavior. Previous research has suggested the right amygdala controls fear and aversion to unpleasant experiences.

The study is to be presented Friday at the American Academy of Neurology's Sports Concussion Conference, in Jacksonville, Fla. Research presented at meetings is considered preliminary until published in a peer-reviewed journal.

The findings suggest that "amygdala size could be used to screen who is most at risk to develop PTSD symptoms after a mild traumatic brain injury," Pieper said in an academy news release.

"On the other hand, if there are environmental or psychological cues that lead to brain changes and enlargement of the amygdala, then maybe such influences can be monitored and treated," he added.

"Further studies are needed to better define the relationship between amygdala size and PTSD in mild traumatic brain injury," Pieper said. "Also, while these findings are significant, it remains to be seen whether similar results may be found in those with sports-related concussions."

More information

The U.S. National Institute of Mental Health has more on PTSD.

SOURCE: American Academy of Neurology, news release, July 11, 2017

Copyright © 2017 HealthDay. All rights reserved. URL:http://consumer.healthday.com/Article.asp?AID=724487

Resources from HONselect: HONselect is the HON's medical search engine. It retrieves scientific articles, images, conferences and web sites on the selected subject.
Brain
Wounds and Injuries
Brain Injuries
Craniocerebral Trauma
Head
Emotions
Military Personnel
Mental Health
The list of medical terms above are retrieved automatically from the article.

Disclaimer: The text presented on this page is not a substitute for professional medical advice. It is for your information only and may not represent your true individual medical situation. Do not hesitate to consult your healthcare provider if you have any questions or concerns. Do not use this information to diagnose or treat a health problem or disease without consulting a qualified healthcare professional.
Be advised that HealthDay articles are derived from various sources and may not reflect your own country regulations. The Health On the Net Foundation does not endorse opinions, products, or services that may appear in HealthDay articles.


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