Susanna Kaysen is the author of Girl Interrupted, her memoirs that explore a two-year period that she spent as a patient in a mental institution for young women. Split into three sections, mind versus brain, the clinical definition of a borderline personality disorder, and her diagnosis, her memoirs serve as an argument against her clinical diagnosis. In "Mind vs. Brain" we are given a layman's introduction to psychology. Kaysen, through the use of various writing techniques, explains to the average reader what psychology is. Then, as a preface to her main argument, we are shown the different aspects of a borderline personality disorder and how one is diagnosed. Along with this scientific methodology, Kaysen infuses her own thoughts and opinions. And finally, she presents us with her argument where she explores her life as a young woman; how conformity and period sex roles landed her in a mental institution. She revisits her friends and the events that occurred over 20 years ago while she was a member of the institution. …