A factitious disorder is one in which an individual willfully produces signs or symptoms of a medical or psychiatric illness to assume the sick role and its associated gratifications.

According to DSM-IV; adjustment disorders are symptoms (changes in emotional state or behaviors) that arise in response to an identified psychosocial stressor that is out of proportion to what is expected in usual human experience.…

Dissociative disorders are characterized by disturbances in the integration of mental functions. These disturbances are manifested by loss of memory for personal information or identity, division of consciousness and personality into separate parts, and altered…