title: Pseudohallucinations versus hallucinations: wherein lies the difference?
abstract: OBJECTIVE
  This paper firstly explores the historical concept of pseudohallucinations and their phenomenology. It then examines the experience of hallucinosis in two subject groups, one with post-traumatic stress disorder with dissociative symptoms and the second with schizophrenia.
  
  
  METHODS
  The two groups were assessed using the Psychotic Symptoms Rating Scale with a view to identifying differences in the hallucinatory and delusional experience.
  
  
  RESULTS
  There was no significant difference between the groups in loudness, control, position, duration, or frequency of the voices. Delusions and negative content differed significantly, however.
  
  
  CONCLUSIONS
  Researchers have started to describe pseudohallucinations along a continuum. We build on this dimensional approach and suggest a collaborative nomenclature for subtyping.
authors.affiliation: Consultant Psychiatrist, Maia House, Midland, WA, Australia dw.maiahouse@optusnet.com.au.
authors.forename: Deborah
authors.initials: D
authors.lastname: Wearne
authors.affiliation: Clinical Psychologist, Maia House, Midland, WA, Australia.
authors.forename: Amanda
authors.initials: A
authors.lastname: Genetti
mesh_terms: D000328:Adult; D004213:Dissociative Disorders / Q000503:physiopathology*; D006212:Hallucinations / Q000145:classification* / Q000503:physiopathology*; D006801:Humans; D012559:Schizophrenia / Q000503:physiopathology*; D013313:Stress Disorders, Post-Traumatic / Q000503:physiopathology*
keywords: hallucinations; post-traumatic stress disorder; pseudohallucinations