SynthesisPsychological medicine2019
Auditory and visual hallucination prevalence in Parkinson's disease and dementia with Lewy bodies: a systematic review and meta-analysis.
Synthesis in Psychological medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 3 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
42 citing papers in PubMed, 3 syntheses or guidelines pooled it, 85 citations in OpenAlex.
- Charles Bonnet Syndrome: Clinician Screening Tips and Strategies for Symptom Management.Archives of physical medicine and rehabilitation · 2024Guideline
- Non-visual hallucinations in Parkinson's disease: a systematic review.Journal of neurology · 2023Pooled it
- A systematic review on resting state functional connectivity in patients with neurodegenerative disease and hallucinations.NeuroImage. Clinical · 2022Pooled it
- Exposure to Air Pollutants and Lewy Body and Parkinson Disease-Related Dementias.JAMA network open · 2026Article
- Basal Forebrain Volume and Concurrent Hallucinations and Mild Cognitive Impairment in Parkinson's Disease.Movement disorders clinical practice · 2026Article
- Article
- Isolated auditory hallucinations as the initial neuropsychiatric manifestation of dementia with Lewy bodies: diagnostic pathway and individualized therapy (a case report).Frontiers in psychiatry · 2026Article
- Compensatory hallucinogenesis across three neuropsychiatric disorders: a Bayesian account.Brain communications · 2026Review
- Neuropathology of Lewy body dementia: Lewy-related pathology, α-synuclein oligomers, and comorbid pathologies.Molecular neurodegeneration · 2025Review
- Hearing voices and other altered perceptual experiences across psychotic, mood, and anxiety disorders: from phenomenology and mechanisms to future directions.Schizophrenia (Heidelberg, Germany) · 2025Review
- Cross-Species Evidence for Psilocin-Induced Visual Distortions: Apparent Motion Is Perceived by Both Humans and Rats.Biological psychiatry global open science · 2025Article
- Clinical Utility of eZIS in Cerebral Blood Flow SPECT.Diagnostics (Basel, Switzerland) · 2025Review
- Lewy body dementia: exploring biomarkers and pathogenic interactions of amyloid β, tau, and α-synuclein.Molecular neurodegeneration · 2025Review
- How Layer-Specific fMRI Can Contribute to Understanding Perceptual Disturbances Across Psychiatric Disorders.Current topics in behavioral neurosciences · 2025Review
- Whole-genome sequencing to identify rare variants in East Asian patients with dementia with Lewy bodies.npj aging · 2024Article
- A Consolidated Understanding of the Contribution of Redox Dysregulation in the Development of Hearing Impairment.Antioxidants (Basel, Switzerland) · 2024Review
- Parkinson disease psychosis: from phenomenology to neurobiological mechanisms.Nature reviews. Neurology · 2024Review
- Biomarkers of Auditory-Verbal Hallucinations.Advances in neurobiology · 2024Review
- Case report: Environmental adjustment for visual hallucinations in dementia with Lewy bodies based on photo assessment of the living environment.Frontiers in psychiatry · 2024Article
- Neurological update: non-motor symptoms in atypical parkinsonian syndromes.Journal of neurology · 2023Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
backgroundNon-motor features of Parkinson's disease (PD) and dementia with Lewy bodies (DLB), such as auditory hallucinations (AH), contribute to disease burden but are not well understood.
methodsSystematic review and random-effects meta-analyses of studies reporting AH associated with PD or DLB. Prevalence of visual hallucinations (VH) in identified studies meeting eligibility criteria were included in meta-analyses, facilitating comparison with AH. Synthesis of qualitative descriptions of AH was performed. PubMed, Web of Science and Scopus databases were searched for primary journal articles, written in English, published from 1970 to 2017. Studies reporting AH prevalence in PD or DLB were screened using PRISMA methods.
resultsSearches identified 4542 unique studies for consideration, of which, 26 met inclusion criteria. AH pooled prevalence in PD was estimated to be 8.9% [95% confidence interval (CI) 5.3-14.5], while in DLB was estimated to be 30.8% (±23.4 to 39.3). Verbal hallucinations, perceived as originating outside the head, were the most common form of AH. Non-verbal AH were also common while musical AH were rare. VH were more prevalent, with an estimated pooled prevalence in PD of 28.2% (±19.1 to 39.5), while in DLB they were estimated to be 61.8% (±49.1 to 73.0). Meta-regression determined that the use of validated methodologies to identify hallucinations produced higher prevalence estimates.
conclusionsAH and VH present in a substantial proportion of PD and DLB cases, with VH reported more frequently in both conditions. Both AH and VH are more prevalent in DLB than PD. There is a need for standardised use of validated methods to detect and monitor hallucinations.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.