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Behavioural Neurology
Volume 5, Issue 2, Pages 83-86

Hallucinations and parkinsonian Motor Fluctuations

W. Fernandez, G. Stern, and A. J. Lees

University College and Middlesex Hospital School of Medicine, Department of Neurology, Mortimer Street, London W1N 8AA, UK

Copyright © 1992 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Thirty patients with Parkinson's disease experiencing hallucinations during long-term treatment were compared with 20 parkinsonian patients without hallucinations. No differences were found in the duration of disease, L-dopa treatment or disease severity between the two groups. The hallucinators however, were significantly older and more cognitively impaired. Visual hallucinations occurring only during “off periods of immobility” were relatively common and improved concurrently with parkinsonian disabilities after L-dopa. Although visual hallucinations were commonest auditory hallucinations occurred in one third of the hallucinators.