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PTSD

Unraveling PTSD : New look reveals how disorder may progress

People with post-traumatic stress disorder (PTSD) often show differences in certain brain areas compared to healthy people, but it's been difficult for researchers to determine whether these differences are a cause or a consequence of the condition.Now, a number of new studies may help researchers disentangle the condition's causes from its effects and, in doing so, bring a better understanding of how the disorder might be prevented or treated.In a new review article, researchers draw upon these studies to piece together a new model for how the condition arises.The model suggests that three factors are necessary in order for PTSD to develop : a person needs to have certain risk factors for the condition, he or she must be exposed to a traumatic event, and after that event, further changes to the brain need to occur.With this new understanding of the condition, researchers may ultimately be able to predict who is at risk for PTSD before they experience a traumatic event, as well as trea...

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