Conversion disorder was given its name by Breuer and Freud, who believed its symptoms originated from the conversion of psychological stress into somatic symptoms. More than a hundred years later, this is still the predominant perspective. However, over the past few years, neurobiological research has been conducted to further explore the disorder. Some researchers argue that recent neurobiological findings contradict the predominant perspective, whereas others believe these findings highlight the mechanism by which psychological stress can result in physical symptoms.