Perception of spatial orientation in spasmodic torticollis. Part 2: The visual vertical.
Identifieur interne : 004D80 ( Ncbi/Merge ); précédent : 004D79; suivant : 004D81Perception of spatial orientation in spasmodic torticollis. Part 2: The visual vertical.
Auteurs : D. Anastasopoulos [Grèce] ; K. Bhatia ; A M Bronstein ; C D Marsden ; M A GrestySource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 1997.
English descriptors
- KwdEn :
- Adult, Analysis of Variance, Case-Control Studies, Dystonia (physiopathology), Gravity Sensing (physiology), Head (physiopathology), Humans, Intervention Studies, Middle Aged, Orientation (physiology), Perceptual Distortion (physiology), Posture (physiology), Proprioception (physiology), Regression Analysis, Space Perception (physiology), Spasm (physiopathology), Torticollis (physiopathology), Visual Perception (physiology).
- MESH :
- physiology : Gravity Sensing, Orientation, Perceptual Distortion, Posture, Proprioception, Space Perception, Visual Perception.
- physiopathology : Dystonia, Head, Spasm, Torticollis.
- Adult, Analysis of Variance, Case-Control Studies, Humans, Intervention Studies, Middle Aged, Regression Analysis.
Abstract
Twenty-nine patients with idiopathic spasmodic torticollis (ST) and matched normal control subjects were asked to align a target line to perceived earth vertical [visual vertical (VV)]. Settings were made against a whole-field random-dot background that was either stationary or rotating around the line of sight, and subjects performed the task upright and lying horizontally on their sides. Normal subjects were tested both head upright and after assuming a voluntary head tilt. Patients with ST set the VV close to true upright with a minimal deviation toward tilt of the head in contrast to normal subjects assuming a head tilt who set the VV in the opposite direction to the head tilt (Müller "E" effect). Settings against the spinning disk were biased in the direction of rotation similarly for both subject groups. Settings made against static or spinning disk performed when subjects lay horizontally were tilted in the direction of recumbence (Aubert "A" effect) similarly for both subject groups. When attempting to set the target line parallel to the long axis of the face, patients with head tilt set the line to upright, whereas normal subjects correctly estimated their tilts. One hypothesis offered to explain these results is that the patients referenced only their upright trunk for vertical and did not make use of neck proprioceptive or vestibular signals of head tilt so that all settings were made as if the trunk and head were upright. Alternatively, patients may have used only otolith signals as the reference for upright, and these are recalibrated in ST patients with head tilt. The pathological deviation becomes accepted as upright posture, and VVs and facial orientation are estimated as if the head were upright. In either case the findings indicate abnormal processing of the perception of visual verticality in ST patients.
DOI: 10.1002/mds.870120514
PubMed: 9380053
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Perception of spatial orientation in spasmodic torticollis. Part 2: The visual vertical.</title><author><name sortKey="Anastasopoulos, D" sort="Anastasopoulos, D" uniqKey="Anastasopoulos D" first="D" last="Anastasopoulos">D. Anastasopoulos</name><affiliation wicri:level="1"><nlm:affiliation>Department of Neurology, University of Ioannina Medical School, Greece.</nlm:affiliation><country xml:lang="fr">Grèce</country><wicri:regionArea>Department of Neurology, University of Ioannina Medical School</wicri:regionArea><wicri:noRegion>University of Ioannina Medical School</wicri:noRegion></affiliation></author><author><name sortKey="Bhatia, K" sort="Bhatia, K" uniqKey="Bhatia K" first="K" last="Bhatia">K. Bhatia</name></author><author><name sortKey="Bronstein, A M" sort="Bronstein, A M" uniqKey="Bronstein A" first="A M" last="Bronstein">A M Bronstein</name></author><author><name sortKey="Marsden, C D" sort="Marsden, C D" uniqKey="Marsden C" first="C D" last="Marsden">C D Marsden</name></author><author><name sortKey="Gresty, M A" sort="Gresty, M A" uniqKey="Gresty M" first="M A" last="Gresty">M A Gresty</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1997">1997</date><idno type="RBID">pubmed:9380053</idno><idno type="pmid">9380053</idno><idno type="doi">10.1002/mds.870120514</idno><idno type="wicri:Area/PubMed/Corpus">004603</idno><idno type="wicri:Area/PubMed/Curation">004603</idno><idno type="wicri:Area/PubMed/Checkpoint">004605</idno><idno type="wicri:Area/Ncbi/Merge">004D80</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Perception of spatial orientation in spasmodic torticollis. Part 2: The visual vertical.</title><author><name sortKey="Anastasopoulos, D" sort="Anastasopoulos, D" uniqKey="Anastasopoulos D" first="D" last="Anastasopoulos">D. Anastasopoulos</name><affiliation wicri:level="1"><nlm:affiliation>Department of Neurology, University of Ioannina Medical School, Greece.</nlm:affiliation><country xml:lang="fr">Grèce</country><wicri:regionArea>Department of Neurology, University of Ioannina Medical School</wicri:regionArea><wicri:noRegion>University of Ioannina Medical School</wicri:noRegion></affiliation></author><author><name sortKey="Bhatia, K" sort="Bhatia, K" uniqKey="Bhatia K" first="K" last="Bhatia">K. Bhatia</name></author><author><name sortKey="Bronstein, A M" sort="Bronstein, A M" uniqKey="Bronstein A" first="A M" last="Bronstein">A M Bronstein</name></author><author><name sortKey="Marsden, C D" sort="Marsden, C D" uniqKey="Marsden C" first="C D" last="Marsden">C D Marsden</name></author><author><name sortKey="Gresty, M A" sort="Gresty, M A" uniqKey="Gresty M" first="M A" last="Gresty">M A Gresty</name></author></analytic><series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title><idno type="ISSN">0885-3185</idno><imprint><date when="1997" type="published">1997</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Case-Control Studies</term><term>Dystonia (physiopathology)</term><term>Gravity Sensing (physiology)</term><term>Head (physiopathology)</term><term>Humans</term><term>Intervention Studies</term><term>Middle Aged</term><term>Orientation (physiology)</term><term>Perceptual Distortion (physiology)</term><term>Posture (physiology)</term><term>Proprioception (physiology)</term><term>Regression Analysis</term><term>Space Perception (physiology)</term><term>Spasm (physiopathology)</term><term>Torticollis (physiopathology)</term><term>Visual Perception (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Gravity Sensing</term><term>Orientation</term><term>Perceptual Distortion</term><term>Posture</term><term>Proprioception</term><term>Space Perception</term><term>Visual Perception</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Dystonia</term><term>Head</term><term>Spasm</term><term>Torticollis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Case-Control Studies</term><term>Humans</term><term>Intervention Studies</term><term>Middle Aged</term><term>Regression Analysis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Twenty-nine patients with idiopathic spasmodic torticollis (ST) and matched normal control subjects were asked to align a target line to perceived earth vertical [visual vertical (VV)]. Settings were made against a whole-field random-dot background that was either stationary or rotating around the line of sight, and subjects performed the task upright and lying horizontally on their sides. Normal subjects were tested both head upright and after assuming a voluntary head tilt. Patients with ST set the VV close to true upright with a minimal deviation toward tilt of the head in contrast to normal subjects assuming a head tilt who set the VV in the opposite direction to the head tilt (Müller "E" effect). Settings against the spinning disk were biased in the direction of rotation similarly for both subject groups. Settings made against static or spinning disk performed when subjects lay horizontally were tilted in the direction of recumbence (Aubert "A" effect) similarly for both subject groups. When attempting to set the target line parallel to the long axis of the face, patients with head tilt set the line to upright, whereas normal subjects correctly estimated their tilts. One hypothesis offered to explain these results is that the patients referenced only their upright trunk for vertical and did not make use of neck proprioceptive or vestibular signals of head tilt so that all settings were made as if the trunk and head were upright. Alternatively, patients may have used only otolith signals as the reference for upright, and these are recalibrated in ST patients with head tilt. The pathological deviation becomes accepted as upright posture, and VVs and facial orientation are estimated as if the head were upright. In either case the findings indicate abnormal processing of the perception of visual verticality in ST patients.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">9380053</PMID><DateCreated><Year>1997</Year><Month>11</Month><Day>07</Day></DateCreated><DateCompleted><Year>1997</Year><Month>11</Month><Day>07</Day></DateCompleted><DateRevised><Year>2008</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0885-3185</ISSN><JournalIssue CitedMedium="Print"><Volume>12</Volume><Issue>5</Issue><PubDate><Year>1997</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Movement disorders : official journal of the Movement Disorder Society</Title><ISOAbbreviation>Mov. Disord.</ISOAbbreviation></Journal><ArticleTitle>Perception of spatial orientation in spasmodic torticollis. Part 2: The visual vertical.</ArticleTitle><Pagination><MedlinePgn>709-14</MedlinePgn></Pagination><Abstract><AbstractText>Twenty-nine patients with idiopathic spasmodic torticollis (ST) and matched normal control subjects were asked to align a target line to perceived earth vertical [visual vertical (VV)]. Settings were made against a whole-field random-dot background that was either stationary or rotating around the line of sight, and subjects performed the task upright and lying horizontally on their sides. Normal subjects were tested both head upright and after assuming a voluntary head tilt. Patients with ST set the VV close to true upright with a minimal deviation toward tilt of the head in contrast to normal subjects assuming a head tilt who set the VV in the opposite direction to the head tilt (Müller "E" effect). Settings against the spinning disk were biased in the direction of rotation similarly for both subject groups. Settings made against static or spinning disk performed when subjects lay horizontally were tilted in the direction of recumbence (Aubert "A" effect) similarly for both subject groups. When attempting to set the target line parallel to the long axis of the face, patients with head tilt set the line to upright, whereas normal subjects correctly estimated their tilts. One hypothesis offered to explain these results is that the patients referenced only their upright trunk for vertical and did not make use of neck proprioceptive or vestibular signals of head tilt so that all settings were made as if the trunk and head were upright. Alternatively, patients may have used only otolith signals as the reference for upright, and these are recalibrated in ST patients with head tilt. The pathological deviation becomes accepted as upright posture, and VVs and facial orientation are estimated as if the head were upright. In either case the findings indicate abnormal processing of the perception of visual verticality in ST patients.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Anastasopoulos</LastName><ForeName>D</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Department of Neurology, University of Ioannina Medical School, Greece.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bhatia</LastName><ForeName>K</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Bronstein</LastName><ForeName>A M</ForeName><Initials>AM</Initials></Author><Author ValidYN="Y"><LastName>Marsden</LastName><ForeName>C D</ForeName><Initials>CD</Initials></Author><Author ValidYN="Y"><LastName>Gresty</LastName><ForeName>M A</ForeName><Initials>MA</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>Mov Disord</MedlineTA><NlmUniqueID>8610688</NlmUniqueID><ISSNLinking>0885-3185</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><CitationSubset>S</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000704">Analysis of Variance</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D016022">Case-Control Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004421">Dystonia</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D018466">Gravity Sensing</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006257">Head</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D016033">Intervention Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008875">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D009949">Orientation</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010469">Perceptual Distortion</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011187">Posture</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011434">Proprioception</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012044">Regression Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013028">Space Perception</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013035">Spasm</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014103">Torticollis</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014796">Visual Perception</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1997</Year><Month>9</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1997</Year><Month>9</Month><Day>26</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1997</Year><Month>9</Month><Day>26</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">9380053</ArticleId><ArticleId IdType="doi">10.1002/mds.870120514</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Grèce</li></country></list><tree><noCountry><name sortKey="Bhatia, K" sort="Bhatia, K" uniqKey="Bhatia K" first="K" last="Bhatia">K. Bhatia</name><name sortKey="Bronstein, A M" sort="Bronstein, A M" uniqKey="Bronstein A" first="A M" last="Bronstein">A M Bronstein</name><name sortKey="Gresty, M A" sort="Gresty, M A" uniqKey="Gresty M" first="M A" last="Gresty">M A Gresty</name><name sortKey="Marsden, C D" sort="Marsden, C D" uniqKey="Marsden C" first="C D" last="Marsden">C D Marsden</name></noCountry><country name="Grèce"><noRegion><name sortKey="Anastasopoulos, D" sort="Anastasopoulos, D" uniqKey="Anastasopoulos D" first="D" last="Anastasopoulos">D. Anastasopoulos</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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