Researchers identify area of brain associated with PTSD risks

11/7/2012 | U.S. News & World Report

Veterans affected by PTSD tend to have a smaller amygdala, the part of the brain that controls responses to fear and anxiety, according to a study published in the Archives of General Psychiatry. Researchers said while the size of the amygdala is associated with PTSD, it remains uncertain whether the smaller size is the result of PTSD or if a smaller amygdala increases a person's chance of developing the condition.

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