11. Everyone experiences occasional shyness and social anxiety, but the person with a social phobia has intense reactions of fear. What are some of the common social phobias?
12. What is the fundamental fear in agoraphobia?
13. What are typical symptoms of posttraumatic stress disorder?
14. How might the hippocampal volume be related to posttraumatic stress disorder?
15. Discuss briefly the genetic contribution to posttraumatic stress order.