Disturbed egocentric space representation in cervical dystonia.
Identifieur interne : 003232 ( PubMed/Corpus ); précédent : 003231; suivant : 003233Disturbed egocentric space representation in cervical dystonia.
Auteurs : Sandra V. Müller ; Peggy Gl Ser ; Matthias Tröger ; Reinhard Dengler ; Sönke Johannes ; Thomas F. MünteSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2005.
English descriptors
- KwdEn :
- Adolescent, Adult, Aged, Analysis of Variance, Case-Control Studies, Discrimination (Psychology) (physiology), Female, Functional Laterality, Humans, Male, Middle Aged, Motion Perception (physiology), Neuropsychological Tests, Orientation (physiology), Proprioception (physiology), Space Perception (physiology), Torticollis (physiopathology).
- MESH :
- physiology : Discrimination (Psychology), Motion Perception, Orientation, Proprioception, Space Perception.
- physiopathology : Torticollis.
- Adolescent, Adult, Aged, Analysis of Variance, Case-Control Studies, Female, Functional Laterality, Humans, Male, Middle Aged, Neuropsychological Tests.
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.
DOI: 10.1002/mds.20293
PubMed: 15390129
Links to Exploration step
pubmed:15390129Le document en format XML
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<author><name sortKey="Gl Ser, Peggy" sort="Gl Ser, Peggy" uniqKey="Gl Ser P" first="Peggy" last="Gl Ser">Peggy Gl Ser</name>
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<author><name sortKey="Troger, Matthias" sort="Troger, Matthias" uniqKey="Troger M" first="Matthias" last="Tröger">Matthias Tröger</name>
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<author><name sortKey="Johannes, Sonke" sort="Johannes, Sonke" uniqKey="Johannes S" first="Sönke" last="Johannes">Sönke Johannes</name>
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<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>
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<Abstract><AbstractText>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.</AbstractText>
<CopyrightInformation>(c) 2004 Movement Disorder Society.</CopyrightInformation>
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