Mental Rotation of Body Parts and Sensory Temporal Discrimination in Fixed Dystonia
Identifieur interne : 002556 ( Main/Merge ); précédent : 002555; suivant : 002557Mental Rotation of Body Parts and Sensory Temporal Discrimination in Fixed Dystonia
Auteurs : Petra Katschnig [Royaume-Uni, Autriche] ; Mark J. Edwards [Royaume-Uni] ; Petra Schwingenschuh [Royaume-Uni, Autriche] ; Maria Aguirregomozcorta [Royaume-Uni] ; Georg K Gi [Royaume-Uni] ; John C. Rothwell [Royaume-Uni] ; Kailash P. Bhatia [Royaume-Uni]Source :
- Movement disorders [ 0885-3185 ] ; 2010.
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- Pascal (Inist)
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Abstract
Fixed dystonia is an uncommon but severely disabling condition typically affecting young women following a minor peripheral injury. There is no evidence of any structural lesions of the central nervous system nor any clear peripheral nerve or root damage. Electrophysiological techniques such as short intracortical inhibition, cortical silent period and a plasticity inducing protocol have revealed similarities but also differences compared to classical mobile dystonia. To further explore the pathophysiology of fixed dystonia we compared mental rotation of body parts and sensory temporal discrimination in 11 patients with fixed dystonia, 11 patients with classical mobile dystonia and 10 healthy controls. In the mental rotation task subjects were presented with realistic photos of left or right hands, feet and the head of a young women with a black patch covering the left or the right eye in six different orientations. Subjects had to verbally report the laterality of the presented stimuli. To assess sensory temporal discrimination subjects were asked to discriminate whether pairs of visual, tactile (electrical), or visuo-tactile stimuli were simultaneous or sequential (temporal discrimination threshold) and in the latter case which stimulus preceded the other (temporal order judgement). In accordance with previous studies patients with mobile dystonia were abnormal in mental rotation and temporal discrimination, whereas patients with fixed dystonia were only impaired in mental rotation. Possible explanations for this deficit may include the influence of the abnormal body posture itself, a shared predisposing pathophysiology for mobile and fixed dystonia, or a body image disturbance. These findings add information to the developing pathophysiological picture of fixed dystonia.
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Edwards</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, Queen Square</s1><s2>London</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Schwingenschuh, Petra" sort="Schwingenschuh, Petra" uniqKey="Schwingenschuh P" first="Petra" last="Schwingenschuh">Petra Schwingenschuh</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, Queen Square</s1><s2>London</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Neurology, Division of Special Neurology, Medical University Graz</s1><s3>AUT</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Autriche</country><wicri:noRegion>Department of Neurology, Division of Special Neurology, Medical University Graz</wicri:noRegion></affiliation></author><author><name sortKey="Aguirregomozcorta, Maria" sort="Aguirregomozcorta, Maria" uniqKey="Aguirregomozcorta M" first="Maria" last="Aguirregomozcorta">Maria Aguirregomozcorta</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, Queen Square</s1><s2>London</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="K Gi, Georg" sort="K Gi, Georg" uniqKey="K Gi G" first="Georg" last="K Gi">Georg K Gi</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, Queen Square</s1><s2>London</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Rothwell, John C" sort="Rothwell, John C" uniqKey="Rothwell J" first="John C." last="Rothwell">John C. Rothwell</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, Queen Square</s1><s2>London</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Bhatia, Kailash P" sort="Bhatia, Kailash P" uniqKey="Bhatia K" first="Kailash P." last="Bhatia">Kailash P. Bhatia</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, Queen Square</s1><s2>London</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Royaume-Uni</country><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></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="2010">2010</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>Body schema</term><term>Discrimination</term><term>Dystonia</term><term>Mental rotation</term><term>Nervous system diseases</term><term>Psychogenic</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Dystonie</term><term>Pathologie du système nerveux</term><term>Rotation mentale</term><term>Discrimination</term><term>Schéma corporel</term><term>Psychogène</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Fixed dystonia is an uncommon but severely disabling condition typically affecting young women following a minor peripheral injury. There is no evidence of any structural lesions of the central nervous system nor any clear peripheral nerve or root damage. Electrophysiological techniques such as short intracortical inhibition, cortical silent period and a plasticity inducing protocol have revealed similarities but also differences compared to classical mobile dystonia. To further explore the pathophysiology of fixed dystonia we compared mental rotation of body parts and sensory temporal discrimination in 11 patients with fixed dystonia, 11 patients with classical mobile dystonia and 10 healthy controls. In the mental rotation task subjects were presented with realistic photos of left or right hands, feet and the head of a young women with a black patch covering the left or the right eye in six different orientations. Subjects had to verbally report the laterality of the presented stimuli. To assess sensory temporal discrimination subjects were asked to discriminate whether pairs of visual, tactile (electrical), or visuo-tactile stimuli were simultaneous or sequential (temporal discrimination threshold) and in the latter case which stimulus preceded the other (temporal order judgement). In accordance with previous studies patients with mobile dystonia were abnormal in mental rotation and temporal discrimination, whereas patients with fixed dystonia were only impaired in mental rotation. Possible explanations for this deficit may include the influence of the abnormal body posture itself, a shared predisposing pathophysiology for mobile and fixed dystonia, or a body image disturbance. These findings add information to the developing pathophysiological picture of fixed dystonia.</div></front></TEI><affiliations><list><country><li>Autriche</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Londres</li></region><settlement><li>Londres</li></settlement></list><tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Katschnig, Petra" sort="Katschnig, Petra" uniqKey="Katschnig P" first="Petra" last="Katschnig">Petra Katschnig</name></region><name sortKey="Aguirregomozcorta, Maria" sort="Aguirregomozcorta, Maria" uniqKey="Aguirregomozcorta M" first="Maria" last="Aguirregomozcorta">Maria Aguirregomozcorta</name><name sortKey="Bhatia, Kailash P" sort="Bhatia, Kailash P" uniqKey="Bhatia K" first="Kailash P." last="Bhatia">Kailash P. Bhatia</name><name sortKey="Edwards, Mark J" sort="Edwards, Mark J" uniqKey="Edwards M" first="Mark J." last="Edwards">Mark J. Edwards</name><name sortKey="K Gi, Georg" sort="K Gi, Georg" uniqKey="K Gi G" first="Georg" last="K Gi">Georg K Gi</name><name sortKey="Rothwell, John C" sort="Rothwell, John C" uniqKey="Rothwell J" first="John C." last="Rothwell">John C. Rothwell</name><name sortKey="Schwingenschuh, Petra" sort="Schwingenschuh, Petra" uniqKey="Schwingenschuh P" first="Petra" last="Schwingenschuh">Petra Schwingenschuh</name></country><country name="Autriche"><noRegion><name sortKey="Katschnig, Petra" sort="Katschnig, Petra" uniqKey="Katschnig P" first="Petra" last="Katschnig">Petra Katschnig</name></noRegion><name sortKey="Schwingenschuh, Petra" sort="Schwingenschuh, Petra" uniqKey="Schwingenschuh P" first="Petra" last="Schwingenschuh">Petra Schwingenschuh</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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