title: Alice in Wonderland syndrome: A systematic review.
abstract: OBJECTIVE
  To summarize the literature on Alice in Wonderland syndrome (AIWS), a disorder characterized by distortions of visual perception, the body schema, and the experience of time.
  
  
  RESULTS
  On the basis of 169 published case descriptions, the etiology of AIWS is divided into 8 main groups, with neurologic disorders affecting mostly adults and elderly patients and encephalitides affecting mostly patients aged ≤18 years. Symptoms of AIWS are also experienced in the general population, with up to 30% of adolescents reporting nonclinical symptoms.
  
  
  CONCLUSIONS
  In clinical cases of AIWS, auxiliary investigations (including blood tests, EEG, and brain MRI) are strongly advised. Treatment should be directed at the suspected underlying condition, although reassurance that the symptoms themselves are not harmful seems to suffice in about 50% of the cases. International classifications such as the DSM and ICD should consider placing the syndrome on their research agenda.
authors.affiliation: Parnassia Psychiatric Institute, The Hague; Leiden University, Leiden; and Department of Psychiatry, University of Groningen, Groningen, the Netherlands.
authors.forename: Jan Dirk
authors.initials: JD
authors.lastname: Blom