A psychiatric study was done: http://ajp.psychiatryonline.org/cgi/...tract/153/1/57 with these conclusions:

"Pseudoseizure subjects have high rates of the psychiatric disorders found in traumatized groups; they closely resemble patients with dissociative disorders. Reclassification of conversion seizures with the dissociative disorders should be considered. Pseudoseizures often appear to express distress related to abuse reports. Clinicians should screen pseudoseizure patients for adult and childhood trauma, dissociative disorders, depression, and PTSD."