Personality change
Personality change refers to the different forms of change in various aspects of personality. An individual's personality may stay somewhat consistent throughout their life, though there is evidence that an individual's personality can change throughout their lifetime.
Social interactions, age, personal experiences, and significant events (especially traumatic events) can all alter a person's perceptions and cause their personality to change.
There is an ongoing debate as to what personality means and why personality changes. The development of personality is often dependent on the stage of life a person is in. Most development occurs in the earlier stages of life and becomes more stable as one grows into adulthood.
While still uncertain, research suggests that genetics play a role in the change and stability of certain traits in a personality. They have also discovered that environmental sources affect personality too. The debate over nature versus nurture have pervaded the field of psychology since its beginning. Cultural is also a large factor in personality trait differences as well.