The purpose of this Discussion Question is to give you an opportunity to explain a psychological disorder in your own words and understand the usefulness of the DSM in diagnosing psychological disorders. It is important to recognize the symptoms of PTSD in a timely manner, as an appropriate diagnosis can aid in pursuing an effective treatment for individuals suffering from PTSD. Symptoms can include: Re-living the event (also called re-experiencing symptoms) Avoiding situations that remind you of the event Negative changes in beliefs and feelings Feeling keyed up (also called hyperarousal)