Psychodynamic theory was the dominant school of thought within psychiatry and much of clinical psychology during the first part of the 20th century. Early psychodynamic approaches focused on the interrelationship of the mind (psyche) and mental, emotional or motivational forces within the mind that interact to shape a personality. Dr. Sigmund Freud, who is credited with inventing psychodynamic theory and psychoanalysis, influentially suggested that the unconscious mind is divided into multiple parts, including the irrational and impulsive Id (a representation of primal animal desires), the judgmental Super-ego (a representation of the rules and norms of society inside the mind), and the rational Ego (which serves as an attempt to bridge the other two parts). (Alexander, 2010)
According to Freud, the conscious and unconscious parts of the mind can