Patient with a history of depression presents to the office…

Patient with a history of depression presents to the office with complaints of loss of motivation, sleep issues, decrease desire to socialize, and difficulty going to work. The PMHNP establishes that she is experiencing a relapse into depression. After discussing medication options with the PMHNP she recommends a type of therapy that will delve into her childhood to get to the root of her issues. What is this type of individual therapy call?