Chapter 7: somatic symptoms disorders and dissociative disorders. Somatoform disorders: the individual complains of bodily symptoms that suggest a physical defect or dysfunction but for which there is no physiological basis. Dissociative disorder: the individual experiences disruptions of consciousness, memory, and identity. The onset of both classes of disorders is typically related to some stressful experience, and the two classes sometimes co-occur. Somatoform and dissociative disorders are related to anxiety b/c in the early versions of the dsm, all these disorders were under the heading of neuroses b/c anxiety was considered the predominant underlying factor in each case. Thought to be linked to anxiety and all psychologically caused. 2 main somatoform disorders: conversion disorder & somatization disorder: conversion disorder: sensory or motor symptoms without any physiological cause, somatization disorder: recurrent, multiple physical complaints that have not biological basis. The work group of the dsm-5 suggested to rename this group of disorders by: somatic symptom disorders.