She is a senior clinical psychologist, and a practising psychoanalyst. She worked as a psychiatrist, psychoanalyst, teacher and paediatrician in Switzerland and Russia. The theory was formulated by psychiatrist and psychoanalyst John Bowlby. The French psychoanalyst Jacques Lacan later extended Freudian hermeneutics into other psychical realms. Knightley portrayed Spielrein, the troubled but beautiful young psychoanalyst who comes between Jung and Freud. She is the great-granddaughter of psychoanalyst Sigmund Freud. His name is a play on that of psychoanalyst Sigmund Freud. This notion has been supported by various figures since, including the psychoanalyst Sigmund Freud. Horney, together with fellow psychoanalyst Alfred Adler, formed the Neo-Freudian discipline. Four discourses is a concept developed by French psychoanalyst Jacques Lacan. Its new owner was the psychoanalyst Jacques Lacan. Stephen A. Mitchell has been described as the "most influential relational psychoanalyst". Married to psychoanalyst David Levine, she has two children. She eventually became a noted psychoanalyst in her own right. Casiraghi wrote the preface for a book published in 2017 by the psychoanalyst Julia Kristeva.