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ABNORMAL OCULAR MOVEMENTS IN PARKINSON'S DISEASE

Identifieur interne : 002625 ( Main/Corpus ); précédent : 002624; suivant : 002626

ABNORMAL OCULAR MOVEMENTS IN PARKINSON'S DISEASE

Auteurs : O. Rascol ; M. Clanet ; J. L. Montastruc ; M. Simonetta ; M. J. Soulier-Esteve ; B. Doyon ; A. Rascol

Source :

RBID : ISTEX:C74C9012977CE0A28ADC589DD2DCC8234D915DBD

Abstract

Quantitated automated electro-oculographic data from 45 parkinsonian patients were compared with those from 30 normal control subjects. Patients were selected with idiopathic Parkinson's disease without other associated neurological disease or dementia; 20 had never received antiparkinsonian drugs and in 25 such treatment had been stopped for at least 2 days. Saccade latency, amplitude and peak velocity, smooth pursuit peak velocity, optokinetic nystagmus (OKN) maximal and mean velocities and vestibulo-ocular reflex (VOR) suppression by vision or imagination were significantly altered in patients, whereas VOR gain in darkness was normal. Alterations of saccade latency and smooth pursuit peak velocity were more severe in the more advanced stages of the disease and saccade latency directed towards the symptomatic side was slightly delayed in hemiparkinsonian patients. Saccade amplitude improved 90 min after a single oral dose of L-DOPA. These results suggest a possible dopaminergic control of some ocular movements.

Url:
DOI: 10.1093/brain/112.5.1193

Links to Exploration step

ISTEX:C74C9012977CE0A28ADC589DD2DCC8234D915DBD

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<corresp id="cor1">Correspondence to: Dr O Rascol, Laboratoire de Pharmacologie Médicale et Clinique, INSERM U317, Faculté de Médecine, 37 Allées Jules-Guesde, 31073 Toulouse Cedex, France</corresp>
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<month>10</month>
<year>1989</year>
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<volume>112</volume>
<issue>5</issue>
<fpage>1193</fpage>
<lpage>1214</lpage>
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<day>26</day>
<month>1</month>
<year>1988</year>
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<p>Quantitated automated electro-oculographic data from 45 parkinsonian patients were compared with those from 30 normal control subjects. Patients were selected with idiopathic Parkinson's disease without other associated neurological disease or dementia; 20 had never received antiparkinsonian drugs and in 25 such treatment had been stopped for at least 2 days. Saccade latency, amplitude and peak velocity, smooth pursuit peak velocity, optokinetic nystagmus (OKN) maximal and mean velocities and vestibulo-ocular reflex (VOR) suppression by vision or imagination were significantly altered in patients, whereas VOR gain in darkness was normal. Alterations of saccade latency and smooth pursuit peak velocity were more severe in the more advanced stages of the disease and saccade latency directed towards the symptomatic side was slightly delayed in hemiparkinsonian patients. Saccade amplitude improved 90 min after a single oral dose of L-DOPA. These results suggest a possible dopaminergic control of some ocular movements.</p>
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<abstract>Quantitated automated electro-oculographic data from 45 parkinsonian patients were compared with those from 30 normal control subjects. Patients were selected with idiopathic Parkinson's disease without other associated neurological disease or dementia; 20 had never received antiparkinsonian drugs and in 25 such treatment had been stopped for at least 2 days. Saccade latency, amplitude and peak velocity, smooth pursuit peak velocity, optokinetic nystagmus (OKN) maximal and mean velocities and vestibulo-ocular reflex (VOR) suppression by vision or imagination were significantly altered in patients, whereas VOR gain in darkness was normal. Alterations of saccade latency and smooth pursuit peak velocity were more severe in the more advanced stages of the disease and saccade latency directed towards the symptomatic side was slightly delayed in hemiparkinsonian patients. Saccade amplitude improved 90 min after a single oral dose of L-DOPA. These results suggest a possible dopaminergic control of some ocular movements.</abstract>
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