Sigmund Freud was one of the most influential psychologists of his time, and his theories are still widely popular with the public. However, his theories are also highly controversial and have received much criticism. Use the ITT Tech Virtual Library, and the textbook and Wiley Media site resources to examine Freud's psychoanalytic theory. For this writing assignment, address the following: What is the basic nature of personality, according to Freud? Briefly describe his theory of personality structures, developmental stages, and defense mechanisms. Provide an instance of when you or someone you know, used a defense mechanism. Identify a few major criticisms of Freud's theories. The ITT Tech Virtual Library is a good source of articles analyzing Freud's theory. Why do you think Freud's theories are still so popular with the public, despite the many problems psychologists have with his ideas?