Visual stabilization of posture. Physiological stimulus characteristics and clinical aspects.
Identifieur interne : 001812 ( Main/Exploration ); précédent : 001811; suivant : 001813Visual stabilization of posture. Physiological stimulus characteristics and clinical aspects.
Auteurs : W M Paulus ; A. Straube ; T. BrandtSource :
- Brain : a journal of neurology [ 0006-8950 ] ; 1984.
Descripteurs français
- KwdFr :
- MESH :
- physiologie : Perception du mouvement, Rétine, Vision.
- physiopathologie : Troubles de la vision.
- Accommodation oculaire, Acuité visuelle, Adulte, Champs visuels, Humains, Obscurité, Posture.
English descriptors
- KwdEn :
- MESH :
- physiology : Motion Perception, Retina, Vision, Ocular.
- physiopathology : Vision Disorders.
- Accommodation, Ocular, Adult, Darkness, Humans, Posture, Visual Acuity, Visual Fields.
Abstract
Visual stabilization of posture is critically dependent on stimulus characteristics as well as on the performance of the visual system. The purpose of the present investigation was to obtain quantitative data in man by means of posturography of fore-aft and lateral body sway in relation to different visual stimulus characteristics. Visual acuity, when decreased logarithmically, causes a linearly increasing postural instability, twice as prominent for fore-aft than for lateral sway. Any measurable visual contribution for fore-aft sway ceases with an acuity lower than 0.03 and for lateral sway with an acuity lower than 0.01. The central area of the visual field as compared with the peripheral retina dominates postural control. The foveal region exhibits a powerful contribution, in particular for lateral sway. A partial but significant visual stabilization is preserved with a visual input rate between 1 to 4 Hz flicker frequency. As soon as continuous motion perception becomes involved with frequencies higher than 4 Hz, visual stabilization gradually improves with a saturation at frequencies higher than 16 Hz. Lateral body sway activity and eye-object distance are linearly related: body sway decreases with increasing distance corresponding to the linear decrease of net retinal displacement with increasing eye-object distance. Aspects of 'afferent' and 'efferent' visual motion perception, which involve fore-aft and lateral body sway differently, are evaluated. The clinical relevance is demonstrated in patients with oculomotor disturbances. The results are discussed with respect to the variety of related clinical disorders, which involve reduction in visual acuity, field defects, accommodation disturbances and ocular oscillations.
DOI: 10.1093/brain/107.4.1143
PubMed: 6509312
Affiliations:
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Straube</name></author><author><name sortKey="Brandt, T" sort="Brandt, T" uniqKey="Brandt T" first="T" last="Brandt">T. Brandt</name></author></analytic><series><title level="j">Brain : a journal of neurology</title><idno type="ISSN">0006-8950</idno><imprint><date when="1984" type="published">1984</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accommodation, Ocular (MeSH)</term><term>Adult (MeSH)</term><term>Darkness (MeSH)</term><term>Humans (MeSH)</term><term>Motion Perception (physiology)</term><term>Posture (MeSH)</term><term>Retina (physiology)</term><term>Vision Disorders (physiopathology)</term><term>Vision, Ocular (physiology)</term><term>Visual Acuity (MeSH)</term><term>Visual Fields (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Accommodation oculaire (MeSH)</term><term>Acuité visuelle (MeSH)</term><term>Adulte (MeSH)</term><term>Champs visuels (MeSH)</term><term>Humains (MeSH)</term><term>Obscurité (MeSH)</term><term>Perception du mouvement (physiologie)</term><term>Posture (MeSH)</term><term>Rétine (physiologie)</term><term>Troubles de la vision (physiopathologie)</term><term>Vision (physiologie)</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Perception du mouvement</term><term>Rétine</term><term>Vision</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Motion Perception</term><term>Retina</term><term>Vision, Ocular</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Troubles de la vision</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Vision Disorders</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Accommodation, Ocular</term><term>Adult</term><term>Darkness</term><term>Humans</term><term>Posture</term><term>Visual Acuity</term><term>Visual Fields</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Accommodation oculaire</term><term>Acuité visuelle</term><term>Adulte</term><term>Champs visuels</term><term>Humains</term><term>Obscurité</term><term>Posture</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Visual stabilization of posture is critically dependent on stimulus characteristics as well as on the performance of the visual system. The purpose of the present investigation was to obtain quantitative data in man by means of posturography of fore-aft and lateral body sway in relation to different visual stimulus characteristics. Visual acuity, when decreased logarithmically, causes a linearly increasing postural instability, twice as prominent for fore-aft than for lateral sway. Any measurable visual contribution for fore-aft sway ceases with an acuity lower than 0.03 and for lateral sway with an acuity lower than 0.01. The central area of the visual field as compared with the peripheral retina dominates postural control. The foveal region exhibits a powerful contribution, in particular for lateral sway. A partial but significant visual stabilization is preserved with a visual input rate between 1 to 4 Hz flicker frequency. As soon as continuous motion perception becomes involved with frequencies higher than 4 Hz, visual stabilization gradually improves with a saturation at frequencies higher than 16 Hz. Lateral body sway activity and eye-object distance are linearly related: body sway decreases with increasing distance corresponding to the linear decrease of net retinal displacement with increasing eye-object distance. Aspects of 'afferent' and 'efferent' visual motion perception, which involve fore-aft and lateral body sway differently, are evaluated. The clinical relevance is demonstrated in patients with oculomotor disturbances. The results are discussed with respect to the variety of related clinical disorders, which involve reduction in visual acuity, field defects, accommodation disturbances and ocular oscillations.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">6509312</PMID><DateCompleted><Year>1985</Year><Month>02</Month><Day>08</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>11</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0006-8950</ISSN><JournalIssue CitedMedium="Print"><Volume>107 ( Pt 4)</Volume><PubDate><Year>1984</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Brain : a journal of neurology</Title><ISOAbbreviation>Brain</ISOAbbreviation></Journal><ArticleTitle>Visual stabilization of posture. Physiological stimulus characteristics and clinical aspects.</ArticleTitle><Pagination><MedlinePgn>1143-63</MedlinePgn></Pagination><Abstract><AbstractText>Visual stabilization of posture is critically dependent on stimulus characteristics as well as on the performance of the visual system. The purpose of the present investigation was to obtain quantitative data in man by means of posturography of fore-aft and lateral body sway in relation to different visual stimulus characteristics. Visual acuity, when decreased logarithmically, causes a linearly increasing postural instability, twice as prominent for fore-aft than for lateral sway. Any measurable visual contribution for fore-aft sway ceases with an acuity lower than 0.03 and for lateral sway with an acuity lower than 0.01. The central area of the visual field as compared with the peripheral retina dominates postural control. The foveal region exhibits a powerful contribution, in particular for lateral sway. A partial but significant visual stabilization is preserved with a visual input rate between 1 to 4 Hz flicker frequency. As soon as continuous motion perception becomes involved with frequencies higher than 4 Hz, visual stabilization gradually improves with a saturation at frequencies higher than 16 Hz. Lateral body sway activity and eye-object distance are linearly related: body sway decreases with increasing distance corresponding to the linear decrease of net retinal displacement with increasing eye-object distance. Aspects of 'afferent' and 'efferent' visual motion perception, which involve fore-aft and lateral body sway differently, are evaluated. The clinical relevance is demonstrated in patients with oculomotor disturbances. The results are discussed with respect to the variety of related clinical disorders, which involve reduction in visual acuity, field defects, accommodation disturbances and ocular oscillations.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Paulus</LastName><ForeName>W M</ForeName><Initials>WM</Initials></Author><Author ValidYN="Y"><LastName>Straube</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Brandt</LastName><ForeName>T</ForeName><Initials>T</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>England</Country><MedlineTA>Brain</MedlineTA><NlmUniqueID>0372537</NlmUniqueID><ISSNLinking>0006-8950</ISSNLinking></MedlineJournalInfo><CitationSubset>AIM</CitationSubset><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000065" MajorTopicYN="N">Accommodation, Ocular</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003624" MajorTopicYN="N">Darkness</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009039" MajorTopicYN="N">Motion Perception</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011187" MajorTopicYN="Y">Posture</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012160" MajorTopicYN="N">Retina</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014786" MajorTopicYN="N">Vision Disorders</DescriptorName><QualifierName UI="Q000503" MajorTopicYN="N">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014785" MajorTopicYN="N">Vision, Ocular</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014792" MajorTopicYN="N">Visual Acuity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014794" MajorTopicYN="N">Visual Fields</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1984</Year><Month>12</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1984</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1984</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">6509312</ArticleId><ArticleId IdType="doi">10.1093/brain/107.4.1143</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list></list><tree><noCountry><name sortKey="Brandt, T" sort="Brandt, T" uniqKey="Brandt T" first="T" last="Brandt">T. Brandt</name><name sortKey="Paulus, W M" sort="Paulus, W M" uniqKey="Paulus W" first="W M" last="Paulus">W M Paulus</name><name sortKey="Straube, A" sort="Straube, A" uniqKey="Straube A" first="A" last="Straube">A. Straube</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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