SynthesisNeuropsychology review2018
Delusions in Parkinson's Disease: A Systematic Review of Published Cases.
Synthesis in Neuropsychology review, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.
- Diagnostics and treatment of impulse control disorders, psychosis and delirium: systemic review-based recommendations - guideline "Parkinson's disease" of the German Society of Neurology.Journal of neurology · 2024Guideline
- Othello syndrome in Parkinson's disease: a systematic review and report of a case series.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021Pooled it
- Clinical and Structural Differences in Delusions Across Diagnoses: A Systematic Review.Frontiers in integrative neuroscience · 2021Pooled it
- Delusions in Lewy Body Disease: A Cross-Sectional Study on Associated Factors and Lived Experiences.Journal of geriatric psychiatry and neurology · 2026Article
- Imposter in the brain: aetiological, clinical and neuroimaging characteristics of Capgras syndrome.Brain : a journal of neurology · 2026Article
- A systematic review of the clinical correlates of delusions in Parkinson's disease.Clinical parkinsonism & related disorders · 2026Review
- Atypical Psychosis in Parkinson Disease: A Retrospective Study on 24-Hour Continuous Subcutaneous Infusion of Foslevodopa/Foscarbidopa.Neurology. Clinical practice · 2025Article
- Research progress of assessment tools for Parkinson's disease psychosis in China.Frontiers in psychiatry · 2025Review
- Case Files of the Emory University Medical Toxicology Fellowship: A Patient Presents to the Outpatient Toxicology Clinic with Delusions of Being Poisoned.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2024Article
- Parkinson disease psychosis: from phenomenology to neurobiological mechanisms.Nature reviews. Neurology · 2024Review
- Global research trends and hotspots in Parkinson's disease psychosis: a 25-year bibliometric and visual analysis.Frontiers in aging neuroscience · 2024Article
- Advances in the Diagnosis and Management of Psychotic Symptoms in Neurodegenerative Diseases: A Narrative Review.Journal of geriatric psychiatry and neurology · 2023Review
- Psychological Impact of Parkinson Disease Delusions on Spouse Caregivers: A Qualitative Study.Brain sciences · 2021Article
- Derationalizing Delusions.Clinical psychological science : a journal of the Association for Psychological Science · 2021Review
- Pimavanserin Treatment for Parkinson's Disease Psychosis in Clinical Practice.Parkinson's disease · 2021Article
- The role of nicotinic cholinergic neurotransmission in delusional thinking.NPJ schizophrenia · 2020Review
- Psychosis in Parkinson's disease and parkinsonism in antipsychotic-naive schizophrenia spectrum psychosis: clinical, nosological and pathobiological challenges.Acta pharmacologica Sinica · 2020Review
- Nosology and Phenomenology of Psychosis in Movement Disorders.Movement disorders clinical practice · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Delusions in Parkinson's disease (PD) are thought to be associated with disease progression and cognitive impairment. However, this symptom description is not consistent in the literature and there is a suggestion that different subgroups of psychotic patients occur in PD, which we aimed to clarify. Case reports were identified through a systematic search of databases (PUBMED, EMBASE, PsychInfo). Cases with isolated delusions were compared to those with both delusions and hallucinations. We identified 184 cases of delusions in PD. Delusions were primarily paranoid in nature (83%) and isolated in 50%. Those with isolated delusions had an earlier onset of PD (46 years vs 55 years), higher rates of impulse control disorders (40.2 vs 10.3%), dopamine dysregulation (29.9 vs 11.3%) and lower rates of cognitive impairment (8.0 vs 26.8%). There is unexpected heterogeneity amongst cases of delusional psychosis, that cannot adequately be explained by existing models of PD psychosis.
Indexed as
Identifiers
What OpenQuestion holds
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.