MovDisordV3, Main, Exploration, bibRecord, 001E71

Abnormal visual activation in Parkinson's disease patients

Identifieur interne : 001E71 ( Main/Exploration ); précédent : 001E70; suivant : 001E72

Abnormal visual activation in Parkinson's disease patients

Auteurs : Ellison Fernando Cardoso [Brésil] ; Felipe Fregni [États-Unis] ; Fernanda Martins Maia [Brésil] ; Luciano M. Melo [Brésil] ; João R. Sato [Brésil] ; Antonio Cesário Cruz Jr. [Brésil] ; Edno Tales Bianchi [Brésil] ; Danilo Botelho Fernandes [Brésil] ; Mário Luiz Ribeiro Monteiro [Brésil] ; Egberto Reis Barbosa [Brésil] ; Edson Amaro Jr. [Brésil]

Source :

Movement Disorders [ 0885-3185 ] ; 2010-08-15.

RBID : ISTEX:F5F2D61684EF6FB4C9015D0D39B4EB4D3317DB17

English descriptors

KwdEn :
- Aged, Analysis of Variance, Face, Female, Humans, Image Processing, Computer-Assisted (methods), Magnetic Resonance Imaging (methods), Male, Middle Aged, Neurologic Examination (methods), Neuropsychological Tests, Oxygen (blood), Parkinson Disease (complications), Parkinson Disease (pathology), Parkinson's disease, Pattern Recognition, Visual (physiology), Perceptual Disorders (etiology), Photic Stimulation (methods), Statistics as Topic, Visual Cortex (blood supply), Visual Cortex (physiopathology), Visual Pathways (blood supply), Visual Pathways (physiopathology), dopamine, fMRI, hallucinations, visual symptoms.
MESH :
- chemical , blood : Oxygen.
- blood supply : Visual Cortex, Visual Pathways.
- complications : Parkinson Disease.
- etiology : Perceptual Disorders.
- methods : Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Neurologic Examination, Photic Stimulation.
- pathology : Parkinson Disease.
- physiology : Pattern Recognition, Visual.
- physiopathology : Visual Cortex, Visual Pathways.
- Aged, Analysis of Variance, Face, Female, Humans, Male, Middle Aged, Neuropsychological Tests, Statistics as Topic.

Abstract

Among nonmotor symptoms observed in Parkinson's disease (PD) dysfunction in the visual system, including hallucinations, has a significant impact in their quality of life. To further explore the visual system in PD patients we designed two fMRI experiments comparing 18 healthy volunteers with 16 PD patients without visual complaints in two visual fMRI paradigms: the flickering checkerboard task and a facial perception paradigm. PD patients displayed a decreased activity in the primary visual cortex (Broadmann area 17) bilaterally as compared to healthy volunteers during flickering checkerboard task and increased activity in fusiform gyrus (Broadmann area 37) during facial perception paradigm. Our findings confirm the notion that PD patients show significant changes in the visual cortex system even before the visual symptoms are clinically evident. Further studies are necessary to evaluate the contribution of these abnormalities to the development visual symptoms in PD. © 2010 Movement Disorders Society

Url:

https://api.istex.fr/document/F5F2D61684EF6FB4C9015D0D39B4EB4D3317DB17/fulltext/pdf

DOI: 10.1002/mds.23101

Affiliations:

Le document en format XML

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<author><name sortKey="Melo, Luciano M" sort="Melo, Luciano M" uniqKey="Melo L" first="Luciano M." last="Melo">Luciano M. Melo</name>
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<author><name sortKey="Sato, Joao R" sort="Sato, Joao R" uniqKey="Sato J" first="João R." last="Sato">João R. Sato</name>
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<author><name sortKey="Cruz Jr, Antonio Cesario" sort="Cruz Jr, Antonio Cesario" uniqKey="Cruz Jr A" first="Antonio Cesário" last="Cruz Jr.">Antonio Cesário Cruz Jr.</name>
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<author><name sortKey="Bianchi, Edno Tales" sort="Bianchi, Edno Tales" uniqKey="Bianchi E" first="Edno Tales" last="Bianchi">Edno Tales Bianchi</name>
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<author><name sortKey="Fernandes, Danilo Botelho" sort="Fernandes, Danilo Botelho" uniqKey="Fernandes D" first="Danilo Botelho" last="Fernandes">Danilo Botelho Fernandes</name>
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<author><name sortKey="Monteiro, Mario Luiz Ribeiro" sort="Monteiro, Mario Luiz Ribeiro" uniqKey="Monteiro M" first="Mário Luiz Ribeiro" last="Monteiro">Mário Luiz Ribeiro Monteiro</name>
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<author><name sortKey="Barbosa, Egberto Reis" sort="Barbosa, Egberto Reis" uniqKey="Barbosa E" first="Egberto Reis" last="Barbosa">Egberto Reis Barbosa</name>
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<author><name sortKey="Cruz Jr, Antonio Cesario" sort="Cruz Jr, Antonio Cesario" uniqKey="Cruz Jr A" first="Antonio Cesário" last="Cruz Jr.">Antonio Cesário Cruz Jr.</name>
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<author><name sortKey="Fernandes, Danilo Botelho" sort="Fernandes, Danilo Botelho" uniqKey="Fernandes D" first="Danilo Botelho" last="Fernandes">Danilo Botelho Fernandes</name>
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<author><name sortKey="Barbosa, Egberto Reis" sort="Barbosa, Egberto Reis" uniqKey="Barbosa E" first="Egberto Reis" last="Barbosa">Egberto Reis Barbosa</name>
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<front><div type="abstract" xml:lang="en">Among nonmotor symptoms observed in Parkinson's disease (PD) dysfunction in the visual system, including hallucinations, has a significant impact in their quality of life. To further explore the visual system in PD patients we designed two fMRI experiments comparing 18 healthy volunteers with 16 PD patients without visual complaints in two visual fMRI paradigms: the flickering checkerboard task and a facial perception paradigm. PD patients displayed a decreased activity in the primary visual cortex (Broadmann area 17) bilaterally as compared to healthy volunteers during flickering checkerboard task and increased activity in fusiform gyrus (Broadmann area 37) during facial perception paradigm. Our findings confirm the notion that PD patients show significant changes in the visual cortex system even before the visual symptoms are clinically evident. Further studies are necessary to evaluate the contribution of these abnormalities to the development visual symptoms in PD. © 2010 Movement Disorders Society</div>
</front>
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Movement Disorders (revue)

Abnormal visual activation in Parkinson's disease patients

Abnormal visual activation in Parkinson's disease patients

Source :

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)
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.