Movement Disorders (revue)

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Imitation in Patients with Gilles de la Tourette Syndrome: A Behavioral Study

Identifieur interne : 002255 ( PascalFrancis/Curation ); précédent : 002254; suivant : 002256

Imitation in Patients with Gilles de la Tourette Syndrome: A Behavioral Study

Auteurs : Melanie Jonas [Allemagne] ; Götz Thomalla [Allemagne] ; Katja Biermann-Ruben [Allemagne] ; Hartwig Roman Siebner [Danemark, Allemagne] ; Kirsten Müller-Vahl [Allemagne] ; Tobias B Umer [Allemagne] ; Christian Gerloff [Allemagne] ; Alfons Schnitzler [Allemagne] ; Michael Orth [Allemagne] ; Alexander Münchau [Allemagne]

Source :

RBID : Pascal:10-0315059

Descripteurs français

English descriptors

Abstract

Echophenomena in Gilles de la Tourette syndrome (GTS) may relate to deficient processing of observed biological movements. This would be reflected in altered effects of movement observation on motor responses in these patients. We studied reaction times in 11 unmedicated GTS patients without psychiatric comorbidity and healthy subjects. In experiment 1, participants imitated single biological finger movement stimuli or nonbiological dot movement stimuli immediately. In experiment 2, participants responded to a tone while viewing biological or nonbiological movement stimuli that were either compatible (identical) or incompatible (different) with their response. In experiment 1, both patients and healthy subjects responded faster to single biological than to nonbiological stimuli. In experiment 2, biological stimuli caused a larger compatibility-effect in responses than nonbiological stimuli in both groups, provided stimulus presentation and response initiation coincided. Healthy subjects responded faster to compatible biological than nonbiological stimuli. In contrast, GTS patients responded slower to incompatible biological than nonbiological stimuli. Patients' mean reaction time in experiment 2 correlated with phonic tic-frequency. Motor facilitation by observing biological movements appears to rely on concomitance of stimuli and responses in GTS patients and healthy individuals. Differing behavioral effects of movement observation in GTS might reflect altered activation of an action observation-execution matching system. To avoid unwanted movements GTS patients probably have to inhibit motor activation induced by observed movement automatically. Thus, movement stimuli may facilitate similar motor responses less but interfere more with different responses in these patients.
pA  
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A03   1    @0 Mov. disord.
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A08 01  1  ENG  @1 Imitation in Patients with Gilles de la Tourette Syndrome: A Behavioral Study
A11 01  1    @1 JONAS (Melanie)
A11 02  1    @1 THOMALLA (Götz)
A11 03  1    @1 BIERMANN-RUBEN (Katja)
A11 04  1    @1 ROMAN SIEBNER (Hartwig)
A11 05  1    @1 MÜLLER-VAHL (Kirsten)
A11 06  1    @1 BÄUMER (Tobias)
A11 07  1    @1 GERLOFF (Christian)
A11 08  1    @1 SCHNITZLER (Alfons)
A11 09  1    @1 ORTH (Michael)
A11 10  1    @1 MÜNCHAU (Alexander)
A14 01      @1 Department of Neurology, University Medical Center Hambut-g-Eppendorf @2 Hamburg @3 DEU @Z 1 aut. @Z 2 aut. @Z 6 aut. @Z 7 aut. @Z 10 aut.
A14 02      @1 Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf @2 Hamburg @3 DEU @Z 1 aut.
A14 03      @1 Department of Neurology, MEG Laboratory, Dusseldorf University Hospital @2 Düsseldorf @3 DEU @Z 3 aut. @Z 8 aut.
A14 04      @1 Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine-University @2 Düsseldorf @3 DEU @Z 3 aut. @Z 8 aut.
A14 05      @1 Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre @2 Copenhagen @3 DNK @Z 4 aut.
A14 06      @1 NeuroImage Nord @2 Hamburg-Kiel-Lübeck @3 DEU @Z 4 aut.
A14 07      @1 Clinic of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School @2 Hannover @3 DEU @Z 5 aut.
A14 08      @1 Department of Neurology, Ulm University Hospital @2 Ulm @3 DEU @Z 9 aut.
A20       @1 991-999
A21       @1 2010
A23 01      @0 ENG
A43 01      @1 INIST @2 20953 @5 354000170524820040
A44       @0 0000 @1 © 2010 INIST-CNRS. All rights reserved.
A45       @0 37 ref.
A47 01  1    @0 10-0315059
A60       @1 P
A61       @0 A
A64 01  1    @0 Movement disorders
A66 01      @0 USA
C01 01    ENG  @0 Echophenomena in Gilles de la Tourette syndrome (GTS) may relate to deficient processing of observed biological movements. This would be reflected in altered effects of movement observation on motor responses in these patients. We studied reaction times in 11 unmedicated GTS patients without psychiatric comorbidity and healthy subjects. In experiment 1, participants imitated single biological finger movement stimuli or nonbiological dot movement stimuli immediately. In experiment 2, participants responded to a tone while viewing biological or nonbiological movement stimuli that were either compatible (identical) or incompatible (different) with their response. In experiment 1, both patients and healthy subjects responded faster to single biological than to nonbiological stimuli. In experiment 2, biological stimuli caused a larger compatibility-effect in responses than nonbiological stimuli in both groups, provided stimulus presentation and response initiation coincided. Healthy subjects responded faster to compatible biological than nonbiological stimuli. In contrast, GTS patients responded slower to incompatible biological than nonbiological stimuli. Patients' mean reaction time in experiment 2 correlated with phonic tic-frequency. Motor facilitation by observing biological movements appears to rely on concomitance of stimuli and responses in GTS patients and healthy individuals. Differing behavioral effects of movement observation in GTS might reflect altered activation of an action observation-execution matching system. To avoid unwanted movements GTS patients probably have to inhibit motor activation induced by observed movement automatically. Thus, movement stimuli may facilitate similar motor responses less but interfere more with different responses in these patients.
C02 01  X    @0 002B17
C02 02  X    @0 002B17F
C03 01  X  FRE  @0 Syndrome de Gilles de la Tourette @5 01
C03 01  X  ENG  @0 Gilles de la Tourette syndrome @5 01
C03 01  X  SPA  @0 Gilles de la Tourette síndrome @5 01
C03 02  X  FRE  @0 Pathologie du système nerveux @5 02
C03 02  X  ENG  @0 Nervous system diseases @5 02
C03 02  X  SPA  @0 Sistema nervioso patología @5 02
C03 03  X  FRE  @0 Homme @5 09
C03 03  X  ENG  @0 Human @5 09
C03 03  X  SPA  @0 Hombre @5 09
C03 04  X  FRE  @0 Temps réaction @5 10
C03 04  X  ENG  @0 Reaction time @5 10
C03 04  X  SPA  @0 Tiempo reacción @5 10
C07 01  X  FRE  @0 Pathologie de l'encéphale @5 37
C07 01  X  ENG  @0 Cerebral disorder @5 37
C07 01  X  SPA  @0 Encéfalo patología @5 37
C07 02  X  FRE  @0 Maladie dégénérative @5 38
C07 02  X  ENG  @0 Degenerative disease @5 38
C07 02  X  SPA  @0 Enfermedad degenerativa @5 38
C07 03  X  FRE  @0 Pathologie du système nerveux central @5 39
C07 03  X  ENG  @0 Central nervous system disease @5 39
C07 03  X  SPA  @0 Sistema nervosio central patología @5 39
N21       @1 200
N44 01      @1 OTO
N82       @1 OTO

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Pascal:10-0315059

Le document en format XML

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<div type="abstract" xml:lang="en">Echophenomena in Gilles de la Tourette syndrome (GTS) may relate to deficient processing of observed biological movements. This would be reflected in altered effects of movement observation on motor responses in these patients. We studied reaction times in 11 unmedicated GTS patients without psychiatric comorbidity and healthy subjects. In experiment 1, participants imitated single biological finger movement stimuli or nonbiological dot movement stimuli immediately. In experiment 2, participants responded to a tone while viewing biological or nonbiological movement stimuli that were either compatible (identical) or incompatible (different) with their response. In experiment 1, both patients and healthy subjects responded faster to single biological than to nonbiological stimuli. In experiment 2, biological stimuli caused a larger compatibility-effect in responses than nonbiological stimuli in both groups, provided stimulus presentation and response initiation coincided. Healthy subjects responded faster to compatible biological than nonbiological stimuli. In contrast, GTS patients responded slower to incompatible biological than nonbiological stimuli. Patients' mean reaction time in experiment 2 correlated with phonic tic-frequency. Motor facilitation by observing biological movements appears to rely on concomitance of stimuli and responses in GTS patients and healthy individuals. Differing behavioral effects of movement observation in GTS might reflect altered activation of an action observation-execution matching system. To avoid unwanted movements GTS patients probably have to inhibit motor activation induced by observed movement automatically. Thus, movement stimuli may facilitate similar motor responses less but interfere more with different responses in these patients.</div>
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