MovDisordV3, Main, Exploration, bibRecord, 002192

Neuroanatomical substrate of visuospatial and visuoperceptual impairment in Parkinson's disease

Identifieur interne : 002192 ( Main/Exploration ); précédent : 002191; suivant : 002193

Neuroanatomical substrate of visuospatial and visuoperceptual impairment in Parkinson's disease

Auteurs : Joana B. Pereira [Espagne] ; Carme Junqué [Espagne] ; María-Jo E Martí [Espagne] ; Blanca Ramirez-Ruiz [Espagne] ; Nuria Bargall [Espagne] ; Eduardo Tolosa [Espagne]

Source :

Movement Disorders [ 0885-3185 ] ; 2009-06-15.

RBID : ISTEX:C520D3C48BB388DE02D721E40C68FBD55F372953

Descripteurs français

Pascal (Inist)
- Maladie de Parkinson, Morphométrie, Pathologie du système nerveux, Voxel.

English descriptors

KwdEn :
- Aged, Brain Mapping, Female, Humans, Magnetic Resonance Imaging (methods), Male, Memory (physiology), Mental Status Schedule, Morphometry, Nervous system diseases, Neuropsychological Tests, Parkinson Disease (complications), Parkinson Disease (pathology), Parkinson disease, Parkinson's disease, Pattern Recognition, Visual (physiology), Perceptual Disorders (etiology), Perceptual Disorders (pathology), Photic Stimulation (methods), Regression Analysis, Retrospective Studies, Space Perception (physiology), Visual Acuity (physiology), Voxel, visuospatial/visuoperceptual impairment, voxel‐based morphometry.
MESH :
- complications : Parkinson Disease.
- etiology : Perceptual Disorders.
- methods : Magnetic Resonance Imaging, Photic Stimulation.
- pathology : Parkinson Disease, Perceptual Disorders.
- physiology : Memory, Pattern Recognition, Visual, Space Perception, Visual Acuity.
- Aged, Brain Mapping, Female, Humans, Male, Mental Status Schedule, Neuropsychological Tests, Regression Analysis, Retrospective Studies.

Abstract

To determine magnetic resonance imaging patterns of gray matter (GM) atrophy underlying visuospatial and visuoperceptual impairment in Parkinson's disease (PD), we applied voxel‐based morphometry to 36 nondemented PD patients and correlated their whole brain GM density with performance on three visuospatial and visuoperceptual tests. In addition, group comparisons between patients and 20 healthy controls were also performed. Correlations between visuospatial performance and GM density were found in the superior parietal lobules and the superior occipital gyrus of PD patients. Poor performance on visuoperceptual tests was also found to be significantly associated with GM decreases in the fusiform, the parahippocampus, and the middle occipital gyrus. Finally, group comparisons between controls and patients showed widespread GM cortical reductions in PD, involving posterior temporal and parietal regions. Taken together, these findings suggest that visuospatial and visuoperceptual dysfunctions reflect structural GM changes in temporo‐parietal cortical regions of PD patients. © 2009 Movement Disorder Society

Url:

https://api.istex.fr/document/C520D3C48BB388DE02D721E40C68FBD55F372953/fulltext/pdf

DOI: 10.1002/mds.22560

Affiliations:

Le document en format XML

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<author><name sortKey="Marti, Maria O E" sort="Marti, Maria O E" uniqKey="Marti M" first="María-Jo E" last="Martí">María-Jo E Martí</name>
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<author><name sortKey="Ramirez Uiz, Blanca" sort="Ramirez Uiz, Blanca" uniqKey="Ramirez Uiz B" first="Blanca" last="Ramirez-Ruiz">Blanca Ramirez-Ruiz</name>
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<front><div type="abstract" xml:lang="en">To determine magnetic resonance imaging patterns of gray matter (GM) atrophy underlying visuospatial and visuoperceptual impairment in Parkinson's disease (PD), we applied voxel‐based morphometry to 36 nondemented PD patients and correlated their whole brain GM density with performance on three visuospatial and visuoperceptual tests. In addition, group comparisons between patients and 20 healthy controls were also performed. Correlations between visuospatial performance and GM density were found in the superior parietal lobules and the superior occipital gyrus of PD patients. Poor performance on visuoperceptual tests was also found to be significantly associated with GM decreases in the fusiform, the parahippocampus, and the middle occipital gyrus. Finally, group comparisons between controls and patients showed widespread GM cortical reductions in PD, involving posterior temporal and parietal regions. Taken together, these findings suggest that visuospatial and visuoperceptual dysfunctions reflect structural GM changes in temporo‐parietal cortical regions of PD patients. © 2009 Movement Disorder Society</div>
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Movement Disorders (revue)

Neuroanatomical substrate of visuospatial and visuoperceptual impairment in Parkinson's disease

Neuroanatomical substrate of visuospatial and visuoperceptual impairment in Parkinson's disease

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Movement Disorders (revue)
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