Disturbed egocentric space representation in cervical dystonia
Identifieur interne : 005355 ( Main/Merge ); précédent : 005354; suivant : 005356Disturbed egocentric space representation in cervical dystonia
Auteurs : Sandra V. Müller [Allemagne] ; Peggy Gl Ser [Allemagne] ; Matthias Tröger [Allemagne] ; Reinhard Dengler [Allemagne] ; Sönke Johannes [Suisse] ; Thomas F. Münte [Allemagne]Source :
- Movement disorders [ 0885-3185 ] ; 2005.
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Abstract
In addition to visual spatial input, vestibular and proprioceptive signals are used in judging the egocentric space. We asked whether the abnormal head posture of patients with cervical dystonia (CD) is associated with distortions of their internal spatial reference frame. The perception of subjective straight-ahead (SSA) was tested under various conditions in 28 CD patients and in matched controls. They were asked to direct a laser pointer to the position that they believed to be "straight ahead" relative to their bodies' orientation (body-centered spatial perception). Body-independent visual spatial perception was assessed with different neuropsychological tests. CD patients had a greater deviation of the subjective straight ahead, indicating body-centered visual spatial perception, than controls. No effects were seen in body-independent visual spatial perception. Patients with CD are impaired in body-centered, egocentric spatial perception, but not in body-independent, allocentric spatial perception.
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Müller</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Neuropsychology, Otto-von-Guericke University Magdeburg</s1><s3>DEU</s3><sZ>1 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>Otto-von-Guericke University Magdeburg</wicri:noRegion><wicri:noRegion>Department of Neuropsychology, Otto-von-Guericke University Magdeburg</wicri:noRegion></affiliation></author><author><name sortKey="Gl Ser, Peggy" sort="Gl Ser, Peggy" uniqKey="Gl Ser P" first="Peggy" last="Gl Ser">Peggy Gl Ser</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Department of Neurology, Hannover Medical School</s1><s2>Hannover</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="2">Basse-Saxe</region><settlement type="city">Hanovre</settlement></placeName></affiliation></author><author><name sortKey="Troger, Matthias" sort="Troger, Matthias" uniqKey="Troger M" first="Matthias" last="Tröger">Matthias Tröger</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Department of Neurology, Hannover Medical School</s1><s2>Hannover</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="2">Basse-Saxe</region><settlement type="city">Hanovre</settlement></placeName></affiliation></author><author><name sortKey="Dengler, Reinhard" sort="Dengler, Reinhard" uniqKey="Dengler R" first="Reinhard" last="Dengler">Reinhard Dengler</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Department of Neurology, Hannover Medical School</s1><s2>Hannover</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="2">Basse-Saxe</region><settlement type="city">Hanovre</settlement></placeName></affiliation></author><author><name sortKey="Johannes, Sonke" sort="Johannes, Sonke" uniqKey="Johannes S" first="Sönke" last="Johannes">Sönke Johannes</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Neurology, Rehabilitation Clinic Bellicon</s1><s3>CHE</s3><sZ>5 aut.</sZ></inist:fA14><country>Suisse</country><wicri:noRegion>Department of Neurology, Rehabilitation Clinic Bellicon</wicri:noRegion></affiliation></author><author><name sortKey="Munte, Thomas F" sort="Munte, Thomas F" uniqKey="Munte T" first="Thomas F." last="Münte">Thomas F. Münte</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Neuropsychology, Otto-von-Guericke University Magdeburg</s1><s3>DEU</s3><sZ>1 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>Otto-von-Guericke University Magdeburg</wicri:noRegion><wicri:noRegion>Department of Neuropsychology, Otto-von-Guericke University Magdeburg</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Movement disorders</title><title level="j" type="abbreviated">Mov. disord.</title><idno type="ISSN">0885-3185</idno><imprint><date when="2005">2005</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Movement disorders</title><title level="j" type="abbreviated">Mov. disord.</title><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dystonia</term><term>Motor control</term><term>Nervous system diseases</term><term>Representation</term><term>Spasmodic torticollis</term><term>Spatial orientation</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Système nerveux pathologie</term><term>Représentation</term><term>Orientation spatiale</term><term>Dystonie</term><term>Torticolis spasmodique</term><term>Contrôle moteur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In addition to visual spatial input, vestibular and proprioceptive signals are used in judging the egocentric space. We asked whether the abnormal head posture of patients with cervical dystonia (CD) is associated with distortions of their internal spatial reference frame. The perception of subjective straight-ahead (SSA) was tested under various conditions in 28 CD patients and in matched controls. They were asked to direct a laser pointer to the position that they believed to be "straight ahead" relative to their bodies' orientation (body-centered spatial perception). Body-independent visual spatial perception was assessed with different neuropsychological tests. CD patients had a greater deviation of the subjective straight ahead, indicating body-centered visual spatial perception, than controls. No effects were seen in body-independent visual spatial perception. Patients with CD are impaired in body-centered, egocentric spatial perception, but not in body-independent, allocentric spatial perception.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Suisse</li></country><region><li>Basse-Saxe</li></region><settlement><li>Hanovre</li></settlement></list><tree><country name="Allemagne"><noRegion><name sortKey="Muller, Sandra V" sort="Muller, Sandra V" uniqKey="Muller S" first="Sandra V." last="Müller">Sandra V. Müller</name></noRegion><name sortKey="Dengler, Reinhard" sort="Dengler, Reinhard" uniqKey="Dengler R" first="Reinhard" last="Dengler">Reinhard Dengler</name><name sortKey="Gl Ser, Peggy" sort="Gl Ser, Peggy" uniqKey="Gl Ser P" first="Peggy" last="Gl Ser">Peggy Gl Ser</name><name sortKey="Munte, Thomas F" sort="Munte, Thomas F" uniqKey="Munte T" first="Thomas F." last="Münte">Thomas F. Münte</name><name sortKey="Troger, Matthias" sort="Troger, Matthias" uniqKey="Troger M" first="Matthias" last="Tröger">Matthias Tröger</name></country><country name="Suisse"><noRegion><name sortKey="Johannes, Sonke" sort="Johannes, Sonke" uniqKey="Johannes S" first="Sönke" last="Johannes">Sönke Johannes</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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