MovDisordV3, PubMed, Corpus, bibRecord, 001C76

Vertical optokinetic nystagmus in Parkinson's disease.

Identifieur interne : 001C76 ( PubMed/Corpus ); précédent : 001C75; suivant : 001C77

Vertical optokinetic nystagmus in Parkinson's disease.

Auteurs : Christopher M. Knapp ; Irene Gottlob ; Rebecca J. Mclean ; Yusuf A. Rajabally ; Richard J. Abbott ; Suzanne Rafelt ; Frank A. Proudlock

Source :

Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2009.

RBID : pubmed:19514011

English descriptors

KwdEn :
- Aged, Aged, 80 and over, Analysis of Variance, Female, Humans, Male, Middle Aged, Nystagmus, Optokinetic (physiology), Nystagmus, Pathologic (etiology), Orientation (physiology), Parkinson Disease (complications), Severity of Illness Index.
MESH :
- complications : Parkinson Disease.
- etiology : Nystagmus, Pathologic.
- physiology : Nystagmus, Optokinetic, Orientation.
- Aged, Aged, 80 and over, Analysis of Variance, Female, Humans, Male, Middle Aged, Severity of Illness Index.

Abstract

Parkinson's disease (PD) is associated with a number of oculomotor deficits; however, little is known about changes in vertical optokinetic nystagmus (OKN) associated with PD. We recorded eye movements in 14 PD patients and 14 age-matched controls in response to large field OKN stimulation using stimulus velocities of 20 degrees /second and 40 degrees /second. We compared asymmetry of horizontal and vertical responses in the two groups. We found vertical OKN to be strongly asymmetric in PD with reduced gains for downward-moving stimuli. This asymmetry was significantly greater than that recorded in control volunteers. We postulate that this could result from an abnormal pursuit/early OKN system in PD leading to greater influence of the delayed OKN system.

DOI: 10.1002/mds.22634
PubMed: 19514011

Links to Exploration step

pubmed:19514011

Le document en format XML

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<author><name sortKey="Knapp, Christopher M" sort="Knapp, Christopher M" uniqKey="Knapp C" first="Christopher M" last="Knapp">Christopher M. Knapp</name>
<affiliation><nlm:affiliation>Ophthalmology Group, Faculty of Medicine and Biological Sciences, University of Leicester, Leicester Royal Infirmary, Leicester, United Kingdom.</nlm:affiliation>
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<author><name sortKey="Mclean, Rebecca J" sort="Mclean, Rebecca J" uniqKey="Mclean R" first="Rebecca J" last="Mclean">Rebecca J. Mclean</name>
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<author><name sortKey="Rajabally, Yusuf A" sort="Rajabally, Yusuf A" uniqKey="Rajabally Y" first="Yusuf A" last="Rajabally">Yusuf A. Rajabally</name>
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<author><name sortKey="Abbott, Richard J" sort="Abbott, Richard J" uniqKey="Abbott R" first="Richard J" last="Abbott">Richard J. Abbott</name>
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<author><name sortKey="Rafelt, Suzanne" sort="Rafelt, Suzanne" uniqKey="Rafelt S" first="Suzanne" last="Rafelt">Suzanne Rafelt</name>
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<author><name sortKey="Proudlock, Frank A" sort="Proudlock, Frank A" uniqKey="Proudlock F" first="Frank A" last="Proudlock">Frank A. Proudlock</name>
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<series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title>
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<term>Female</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Nystagmus, Optokinetic (physiology)</term>
<term>Nystagmus, Pathologic (etiology)</term>
<term>Orientation (physiology)</term>
<term>Parkinson Disease (complications)</term>
<term>Severity of Illness Index</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Nystagmus, Optokinetic</term>
<term>Orientation</term>
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<keywords scheme="MESH" xml:lang="en"><term>Aged</term>
<term>Aged, 80 and over</term>
<term>Analysis of Variance</term>
<term>Female</term>
<term>Humans</term>
<term>Male</term>
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<front><div type="abstract" xml:lang="en">Parkinson's disease (PD) is associated with a number of oculomotor deficits; however, little is known about changes in vertical optokinetic nystagmus (OKN) associated with PD. We recorded eye movements in 14 PD patients and 14 age-matched controls in response to large field OKN stimulation using stimulus velocities of 20 degrees /second and 40 degrees /second. We compared asymmetry of horizontal and vertical responses in the two groups. We found vertical OKN to be strongly asymmetric in PD with reduced gains for downward-moving stimuli. This asymmetry was significantly greater than that recorded in control volunteers. We postulate that this could result from an abnormal pursuit/early OKN system in PD leading to greater influence of the delayed OKN system.</div>
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<DateCompleted><Year>2009</Year>
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<Title>Movement disorders : official journal of the Movement Disorder Society</Title>
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<Abstract><AbstractText>Parkinson's disease (PD) is associated with a number of oculomotor deficits; however, little is known about changes in vertical optokinetic nystagmus (OKN) associated with PD. We recorded eye movements in 14 PD patients and 14 age-matched controls in response to large field OKN stimulation using stimulus velocities of 20 degrees /second and 40 degrees /second. We compared asymmetry of horizontal and vertical responses in the two groups. We found vertical OKN to be strongly asymmetric in PD with reduced gains for downward-moving stimuli. This asymmetry was significantly greater than that recorded in control volunteers. We postulate that this could result from an abnormal pursuit/early OKN system in PD leading to greater influence of the delayed OKN system.</AbstractText>
<CopyrightInformation>Copyright 2009 Movement Disorder Society.</CopyrightInformation>
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<MeshHeading><DescriptorName MajorTopicYN="N" UI="D009949">Orientation</DescriptorName>
<QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName MajorTopicYN="N" UI="D010300">Parkinson Disease</DescriptorName>
<QualifierName MajorTopicYN="Y" UI="Q000150">complications</QualifierName>
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<MeshHeading><DescriptorName MajorTopicYN="N" UI="D012720">Severity of Illness Index</DescriptorName>
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	Movement Disorders (revue)
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Movement Disorders (revue)

Vertical optokinetic nystagmus in Parkinson's disease.

Vertical optokinetic nystagmus in Parkinson's disease.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki