Chapter 7 somatic symptom disorders & dissociative disorders. Conversion disorder: a type of somatoform disorder; a physical condition that is medically unexplained and instead reflects psychological factors. Until the most recent dsm revision, a somatoform disorder was ruled out if it could not be determined conclusively that there was no medical explanation, this criterion has been removed from the dsm-5 requirements. A(cid:374)other (cid:272)ha(cid:374)ge is that the ter(cid:373) (cid:862)so(cid:373)atofor(cid:373) disorder(cid:863) has (cid:374)o(cid:449) (cid:271)ee(cid:374) (cid:272)ha(cid:374)ged to somatic symptom disorder. Starting with dsm-3, classification came to be based on observable behavior, not on presumed etiology. Anxiety is not observable in the somatoform and dissociative disorders. In somatic symptom and related disorders, the individual complains of bodily symptoms that suggest a physical defect or dysfunction but for which no physiological basis can be found. Somatoform disorders reflect the mind-body connection and the growing realization that psychological and physical functioning interact with each other.