Editing Conversion disorder (section)

===Psychological mechanism===

The psychological mechanism of conversion can be the most difficult aspect of a conversion disorder diagnosis. Even if there is a clear antecedent trauma or other possible psychological trigger, it is still not clear exactly how this gives rise to the symptoms observed. Patients with medically unexplained neurological symptoms may not have any psychological stressor, hence the use of the term "functional neurological symptom disorder" in the DSM-5, as opposed to "conversion disorder", and the DSM-5's removal of the need for a psychological trigger. The change of name in the DSM-5 also came with a change of criteria. There was a removal of connection to sexual functioning as well as relation to any other medical condition. There was also an added connection to social and occupational functioning.<ref>Kanaan, R.A.A. (2022).</ref>