Correlation of impaired subjective visual vertical and postural instability in Parkinson's disease

Pereira, Cristiana Borges; Kanashiro, Aline Kozoroski; Maia, F. F. S.; Barbosa, Egberto Reis

doi:10.1016/j.jns.2014.07.057

Cited by 26 publications

(23 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is ample evidence to suggest that PD patients have significant increased dependence upon visual information both perceptually and motorically, particularly on the visual orientation of posture and equilibrium [23][24][25][26][27]. Moreover, the visual perception of verticality has been found to be abnormal in PD and correlates with PI [27,28]. Therefore, we postulate that in the early stage of PD, there is redundancy of sensory information that is conveyed to the basal ganglia, which select and suppress incongruent sensory information to compensate for situations of sensory conflict and/or sensory deprivation.…”

Section: Introductionmentioning

confidence: 99%

Visual deprivation elicits subclinical postural inflexibilities in early Parkinson's disease

Panyakaew¹,

Anan²,

Bhidayasiri³

2015

Journal of the Neurological Sciences

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Visual deprivation elicits subclinical postural inflexibilities in early Parkinson's disease

Panyakaew¹,

Anan²,

Bhidayasiri³

2015

Journal of the Neurological Sciences

View full text Add to dashboard Cite

“…Perception of verticality is essential for postural control. Pereira et al 44 showed that perception of verticality is affected in PD patients. This abnormal vertical perception together with disturbed processing of graviceptive pathways is associated with postural instability.…”

Section: Pathophysiologymentioning

confidence: 99%

Pisa syndrome in Parkinson's disease: diagnostic and management challenges

Miletić¹

2016

JPRLS

View full text Add to dashboard Cite

Pisa syndrome is a rare clinical entity characterized by marked lateral flexion of the trunk, which is typically mobile and resolves at supine position. When observed in clinical practice, it denotes an incapacitating symptom of underlying neurodegenerative disease such as Parkinson's disease, multiple system atrophy, and Alzheimer's disease. The underlying pathophysiological mechanisms responsible for the development of Pisa syndrome are poorly understood, and its management remains a challenge. In this review, we will focus our attention on Pisa syndrome in patients with Parkinson's disease, and provide an update on prevalence, pathophysiology, clinical manifestation, and treatment options.

show abstract

“…Both, HC and PWMS made ten adjustments, 5 from positive and 5 from negative initial positions. A previous study published by our group used the same methodology to evaluate perception of verticality in patients with Parkinson's disease 22 .…”

Section: Subjective Visual Vertical Testmentioning

confidence: 99%

A disturbed processing of graviceptive pathways may be involved in the pathophysiology of balance disorders in patients with multiple sclerosis

Fonseca

Pereira

Jorge

et al. 2016

Arq. Neuro-Psiquiatr.

Self Cite

View full text Add to dashboard Cite

The purpose of this study was to determine the relationship between perception of verticality and balance disorders in multiple sclerosis patients. We evaluated patients and healthy controls. Patients were divided into two groups according to their risk of fall, with or without risk of fall, measured by a Dynamic Gait Index scale. Graviceptive perception was assessed using the subjective visual vertical test. Patients with risk of fall showed worse perception than those without risk of fall, p < 0.001. Misperception of verticality was correlated with the dynamic gait index scores (p < 0.001), suggesting that the larger the error for verticality judgment, the greater risk for falling. Considering that the perception of verticality is essential for postural control, our results suggested that the disturbed processing of graviceptive pathways may be involved in the pathophysiology of balance disorders in these patients.

show abstract

Correlation of impaired subjective visual vertical and postural instability in Parkinson's disease

Cited by 26 publications

References 38 publications

Visual deprivation elicits subclinical postural inflexibilities in early Parkinson's disease

Visual deprivation elicits subclinical postural inflexibilities in early Parkinson's disease

Pisa syndrome in Parkinson's disease: diagnostic and management challenges

A disturbed processing of graviceptive pathways may be involved in the pathophysiology of balance disorders in patients with multiple sclerosis

Contact Info

Product

Resources

About

Correlation of impaired subjective visual vertical and postural instability in Parkinson's disease

Cited by 26 publications

References 38 publications

Visual deprivation elicits subclinical postural inflexibilities in early Parkinson's disease

Visual deprivation elicits subclinical postural inflexibilities in early Parkinson's disease

Pisa syndrome in Parkinson&#39;s disease: diagnostic and management challenges

A disturbed processing of graviceptive pathways may be involved in the pathophysiology of balance disorders in patients with multiple sclerosis

Contact Info

Product

Resources

About

Pisa syndrome in Parkinson's disease: diagnostic and management challenges