ArticleScientific reports2018
Pisa Syndrome in Parkinson's Disease: Pathogenic Roles of Verticality Perception Deficits.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 24 citations in OpenAlex.
- Altered central vestibular processing in Parkinson's disease with Pisa syndrome.Scientific reports · 2026Article
- Clinical heterogeneity of Pisa syndrome across Lewy body disorders: a multicenter comparison of Parkinson's disease and dementia with Lewy bodies.Frontiers in aging neuroscience · 2026Article
- Multilevel functional network signature of Pisa syndrome in Parkinson's disease: a resting-state fMRI study.Frontiers in aging neuroscience · 2026Article
- Delineation of the cognitive and neuropsychiatric features of Pisa syndrome in dementia with Lewy bodies.Frontiers in aging neuroscience · 2025Article
- Cortical involvement of lateral trunk flexion and verticality misperception in Parkinson's disease.Brain communications · 2025Article
- Article
- Visuospatial Deficits Are Associated with Pisa Syndrome and not Camptocormia in Parkinson's Disease.Movement disorders clinical practice · 2023Article
- Factors Contributing to the Severity and Laterality of Pisa Syndrome in Parkinson's Disease.Frontiers in aging neuroscience · 2021Article
- Gait Characteristics and Brain Activity in Parkinson's Disease with Concomitant Postural Abnormalities.Aging and disease · 2020Article
- Decreased grey matter in the postural control network is associated with lateral flexion of the trunk in Parkinson's disease.NeuroImage. Clinical · 2020Article
- Pisa Syndrome in Parkinson's Disease Is Associated With Specific Cognitive Alterations.Frontiers in neurology · 2019Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We elucidated whether verticality misperception is associated with the generation of Pisa syndrome (PS) in patients with Parkinson's disease (PD). To examine the heterogenous influence of verticality perception, we also identified the characteristics distinguishing between PD patients with PS who tilted toward the deviation of perceived verticality and those who did not. Subjective visual vertical (SVV) testing was performed in 54 PD patients with PS and 36 without PS to measure verticality perception. Other potential risk factors for PS were evaluated by assessing the asymmetry of motor symptoms, EMG activities of paraspinal muscles, bithermal caloric tests, back pain history, and Berg Balance Scale. Abnormal SVV (odds ratio (OR) 18.40, p = 0.006), postural imbalance (OR 0.71, p = 0.046), and unilateral EMG hyperactivity of paraspinal muscles (OR 39.62, p = 0.027) were independent contributors to PS. In subgroup analysis, EMG hyperactivity of paraspinal muscles contralateral to the leaning side and postural imbalance were associated with PD patients with PS who tilted toward the SVV deviation, whereas back pain was more frequent in those who did not. Verticality misperception is a potent risk factor for PS in PD and contributes differentially to PS depending on the congruence between its direction and PS direction, indicating distinct pathogenic roles.
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