"In the realm of emotion, early childhood experiences have been suspected to be at the root of psychopathology since the earliest theories of Sigmund Freud. Freud's psychoanalytic method aimed at tracing the threads of a patient's earliest childhood memories. Franz Alexander added the goal of allowing the patient to relive these memories in a less pathological environment, a process known as a corrective emotional experience. Although neuroscientists have no data demonstrating that this method operates at the level of neurons ad circuits, emerging results reveal a profound effect of early caregivers on an adult individual's emotional repertoire."