Finally, in the late 1600s, hysteria came to be thought of as related to the brain rather than the devil or the uterus. Today, there’s still debate on how to think about symptoms for which we can’t find a functional explanation. The current ICD-10 lists “conversion disorder with motor symptom or deficit” as a dissociative disorder (and includes the word hysterical in its subtypes), whereas the DSM-5 classifies conversion disorder as a “somatic symptom disorder.”
