Increased visual dependence in Parkinson's disease.
Identifieur interne : 001077 ( PubMed/Checkpoint ); précédent : 001076; suivant : 001078Increased visual dependence in Parkinson's disease.
Auteurs : Jean Philippe Azulay [France] ; Serge Mesure ; Bernard Amblard ; Jean PougetSource :
- Perceptual and motor skills [ 0031-5125 ] ; 2002.
English descriptors
- KwdEn :
- MESH :
- complications : Parkinson Disease.
- diagnosis : Perceptual Disorders.
- etiology : Perceptual Disorders.
- physiology : Locomotion, Visual Fields, Visual Perception.
- Aged, Female, Gait, Humans, Male, Random Allocation, Severity of Illness Index.
Abstract
The present study tested the hypothesis that there is increased visual dependence perceptually in patients with Parkinson's disease. We also evaluated whether the visual control of posture and locomotion was related to perceptual visual field dependence. 21 patients with idiopathic Parkinson's disease and 22 age-matched normal subjects were compared on judgment of the visual vertical using the Rod-and-Frame test with visual perturbations in the frontal plane with a tilted frame. Patients had significantly larger errors than controls in the estimation of the subjective vertical. In the same experiment, we performed a posture and a gait analysis in both groups. Posturographic evaluation did not indicate significant differences in unsteadiness between patients and controls. Gait analysis indicated a typical pattern of reduced velocity, shortened stride length, and normal step width. A significant correlation of .89 was found only in the Parkinsonian group between their errors in estimating subjective visual vertical and the Romberg quotient evaluating visual contribution to postural control. No specific locomotor pattern was correlated with visual dependence. Considering our results and previous reports on the visual control of posture, we conclude that patients with Parkinson's disease showed a significantly increased dependence upon visual information both perceptually and motorically, with an increased perceptual visual dependence in the patients being predictive of an equivalent visual dependence or visual control of posture and equilibrium.
DOI: 10.2466/pms.2002.95.3f.1106
PubMed: 12578250
Affiliations:
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We also evaluated whether the visual control of posture and locomotion was related to perceptual visual field dependence. 21 patients with idiopathic Parkinson's disease and 22 age-matched normal subjects were compared on judgment of the visual vertical using the Rod-and-Frame test with visual perturbations in the frontal plane with a tilted frame. Patients had significantly larger errors than controls in the estimation of the subjective vertical. In the same experiment, we performed a posture and a gait analysis in both groups. Posturographic evaluation did not indicate significant differences in unsteadiness between patients and controls. Gait analysis indicated a typical pattern of reduced velocity, shortened stride length, and normal step width. A significant correlation of .89 was found only in the Parkinsonian group between their errors in estimating subjective visual vertical and the Romberg quotient evaluating visual contribution to postural control. No specific locomotor pattern was correlated with visual dependence. Considering our results and previous reports on the visual control of posture, we conclude that patients with Parkinson's disease showed a significantly increased dependence upon visual information both perceptually and motorically, with an increased perceptual visual dependence in the patients being predictive of an equivalent visual dependence or visual control of posture and equilibrium.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12578250</PMID><DateCreated><Year>2003</Year><Month>02</Month><Day>11</Day></DateCreated><DateCompleted><Year>2003</Year><Month>05</Month><Day>14</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-5125</ISSN><JournalIssue CitedMedium="Print"><Volume>95</Volume><Issue>3 Pt 2</Issue><PubDate><Year>2002</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Perceptual and motor skills</Title><ISOAbbreviation>Percept Mot Skills</ISOAbbreviation></Journal><ArticleTitle>Increased visual dependence in Parkinson's disease.</ArticleTitle><Pagination><MedlinePgn>1106-14</MedlinePgn></Pagination><Abstract><AbstractText>The present study tested the hypothesis that there is increased visual dependence perceptually in patients with Parkinson's disease. We also evaluated whether the visual control of posture and locomotion was related to perceptual visual field dependence. 21 patients with idiopathic Parkinson's disease and 22 age-matched normal subjects were compared on judgment of the visual vertical using the Rod-and-Frame test with visual perturbations in the frontal plane with a tilted frame. Patients had significantly larger errors than controls in the estimation of the subjective vertical. In the same experiment, we performed a posture and a gait analysis in both groups. Posturographic evaluation did not indicate significant differences in unsteadiness between patients and controls. Gait analysis indicated a typical pattern of reduced velocity, shortened stride length, and normal step width. A significant correlation of .89 was found only in the Parkinsonian group between their errors in estimating subjective visual vertical and the Romberg quotient evaluating visual contribution to postural control. No specific locomotor pattern was correlated with visual dependence. Considering our results and previous reports on the visual control of posture, we conclude that patients with Parkinson's disease showed a significantly increased dependence upon visual information both perceptually and motorically, with an increased perceptual visual dependence in the patients being predictive of an equivalent visual dependence or visual control of posture and equilibrium.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Azulay</LastName><ForeName>Jean Philippe</ForeName><Initials>JP</Initials><AffiliationInfo><Affiliation>Institute of Physiological and Cognitive Neurosciences of the CNRS, Marseille, France. jazulay@mail.ap-hm.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Mesure</LastName><ForeName>Serge</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Amblard</LastName><ForeName>Bernard</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Pouget</LastName><ForeName>Jean</ForeName><Initials>J</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Percept Mot Skills</MedlineTA><NlmUniqueID>0401131</NlmUniqueID><ISSNLinking>0031-5125</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005684" MajorTopicYN="N">Gait</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008124" MajorTopicYN="N">Locomotion</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010300" MajorTopicYN="N">Parkinson Disease</DescriptorName><QualifierName UI="Q000150" MajorTopicYN="Y">complications</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010468" MajorTopicYN="N">Perceptual Disorders</DescriptorName><QualifierName UI="Q000175" MajorTopicYN="N">diagnosis</QualifierName><QualifierName UI="Q000209" MajorTopicYN="Y">etiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011897" MajorTopicYN="N">Random Allocation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012720" MajorTopicYN="N">Severity of Illness Index</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014794" MajorTopicYN="N">Visual Fields</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014796" MajorTopicYN="N">Visual Perception</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year><Month>2</Month><Day>13</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2003</Year><Month>5</Month><Day>15</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2003</Year><Month>2</Month><Day>13</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12578250</ArticleId><ArticleId IdType="doi">10.2466/pms.2002.95.3f.1106</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Marseille</li></settlement></list><tree><noCountry><name sortKey="Amblard, Bernard" sort="Amblard, Bernard" uniqKey="Amblard B" first="Bernard" last="Amblard">Bernard Amblard</name><name sortKey="Mesure, Serge" sort="Mesure, Serge" uniqKey="Mesure S" first="Serge" last="Mesure">Serge Mesure</name><name sortKey="Pouget, Jean" sort="Pouget, Jean" uniqKey="Pouget J" first="Jean" last="Pouget">Jean Pouget</name></noCountry><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Azulay, Jean Philippe" sort="Azulay, Jean Philippe" uniqKey="Azulay J" first="Jean Philippe" last="Azulay">Jean Philippe Azulay</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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