possession. In cultures with a solid establishment of evidence-based medicine, they are considered a subtype of a larger category of psychiatric disease. Terminology The use of older terms including pseudoseizures and hysterical seizures are discouraged. In the English language, the word "seizure" usually refers to epileptic events, so some prefer to use more general terms like "events", "attacks", or "episodes", as the term "seizures" may cause confusion with epilepsy. PNES may also be referred to as "non-epileptic attack disorder" "functional seizures", "dissociative convulsions" or "dissociative non-epileptic seizures". These terms are more neutral as to cause, and given that a psychological cause cannot be identified in many cases, they may be more appropriate. Within DSM 5, patients presenting with PNES may meet the criteria for functional neurological disorder and in some cases, somatic symptom disorder, whilst in ICD 10 it may meet the criteria for a conversion disorder. References External links Somatic symptom disorders Disorders causing seizures Seizure types