Researchers at the University of Missouri are using mathematical models in an interesting way to study the body’s reaction to fear. Guoshi Li said he hopes that his research can contribute to new drugs that can help PTSD victims. He said, "Treatment for PTSD patients depends on which connection stores the fear extinction memory and which circuit misfires. With our model, we can figure out what specific connections store fear/extinction memory and how such connections are disrupted in the pathology of PTSD, which may lead to the suggestions of new drugs to treat the disease." Here is a link to the article: