The self-schema refers to a long lasting and stable set of memories that summarize a person's beliefs, experiences and generalizations about the self, in specific behavioral domains. A person may have a self-schema based on any aspect of themselves as a person, including physical characteristics (body image), personality traits and interests, as long as they consider that aspect of their self to be important to their own self-definition. When someone has a schema about themselves they hyper focus on a trait about themselves and believe what they say to themselves about that specific trait. A self schema can be good or bad depending on what that person talks to themselves about and what kind of tone they talk to themselves with.