Neuropsychology of Visual Hallucinations in Parkinson's Disease

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


This chapter presents findings on a study of neuropsychological aspects of visual hallucinations (VHs) with a focus on hallucinations in Parkinson's disease (PD). The results of the study suggest that VHs in PD are a complex multifactor effect of different risk factors, primarily the dysfunctions of the visual system and the system that regulates rapid eye movement sleep and arousal. The study reported here also investigated whether the same risk factors are implicated in proneness to VHs as they are in VHs in PD. The results suggest that the predisposition to VHs in the healthy young population is a multifactor effect of strikingly similar risk factors to those found in PD. However, in addition to the dysfunctions of the visual and arousal system, proneness to hallucinations in the normal population is also predicted by a specific personality profile.
Original languageEnglish
Title of host publicationHallucination: Philosophy and Psychology
EditorsFiona Macpherson , Dimitris Platchias
PublisherMIT Press
ISBN (Print)9780262019200
Publication statusPublished - 2013


  • visual hallucinations
  • Parkinson's disease
  • rapid eye movement
  • arousal
  • risk factors
  • personality profile


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