Modeling movement disorders—CRPS-related dystonia explained by abnormal proprioceptive reflexes
نویسندگان
چکیده
منابع مشابه
Visual modulation of proprioceptive reflexes during movement.
Previous research has demonstrated that feedback circuits such as reflexes can be tuned by setting their gains prior to movement onset during both posture and movement tasks. However, such a control strategy requires that perturbation contingencies be predicted during movement planning and that task goals remain fixed. Here we test the hypothesis that feedforward regulation of reflex circuits a...
متن کاملProprioceptive reflexes and neurological disorders
Alfred Christiaan SCHOUTEN werktuigkundig ingenieur geboren te Dordrecht, Nederland. Het onderzoek beschreven in dit proefschrift is mede mogelijk gemaakt door financiële on-dersteuning van de Nederlandse organisatie voor wetenschappelijk onderzoek, medische wetenschappen (NWO-MW, project nummer: 902-36-084). De pols manipulator beschreven in dit proefschrift is mede mogelijk gemaakt door een g...
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Proprioceptive feedback from the moving wings of locusts contains information which could be sufficient for the control of the timing of the wing-muscle contractions. It has been found, however, that at the high frequency of limb movement used in flight this phasic information content is lost in the ganglionic transfer (Wilson & Gettrup, 1963). During rapid running the legs of cockroaches also ...
متن کاملAbnormal Movement Preparation in Task-Specific Focal Hand Dystonia
Electrophysiological and behavioral studies in primary dystonia suggest abnormalities during movement preparation, but this crucial phase preceding movement onset has not yet been studied specifically with functional magnetic resonance imaging (fMRI). To identify abnormalities in brain activation during movement preparation, we used event-related fMRI to analyze behaviorally unimpaired sequenti...
متن کاملAbnormal cortical processing of voluntary muscle relaxation in patients with focal hand dystonia studied by movement-related potentials.
In order to clarify the abnormality in cortical motor preparation for voluntary muscle relaxation of the hand in patients with focal hand dystonia, Bereitschaftspotentials (BPs) preceding voluntary muscle contraction and relaxation were recorded in eight patients (three with simple writer's cramp and five with dystonic writer's cramp), and were compared with those from 10 normal subjects. Volun...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 2012
ISSN: 0021-9290
DOI: 10.1016/j.jbiomech.2011.09.024