Intact Organization of Tactile Space Perception in Isolated Focal Dystonia
Autor: | Tina Mainka, Matthew R. Longo, Tobias Bäumer, Arne Knutzen, Wolf-Julian Neumann, Elena Azañón, Andrea A. Kühn, Kirsten E. Zeuner, Friederike Borngräber, Christos Ganos |
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Rok vydání: | 2020 |
Předmět: |
somatosensation
0301 basic medicine Adult tactile distance perception congenital hereditary and neonatal diseases and abnormalities medicine.medical_specialty Movement disorders cervical dystonia somatosensory receptive fields media_common.quotation_subject Blepharospasm blepharospasm Somatosensory system focal dystonia 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Perception medicine Humans Cervical dystonia media_common business.industry Focal dystonia medicine.disease Hand 030104 developmental biology medicine.anatomical_structure Neurology Touch Perception Dystonic Disorders Touch Space Perception Forehead Neurology (clinical) medicine.symptom business 600 Technik Medizin angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit 030217 neurology & neurosurgery Meige Syndrome |
Zdroj: | Movement disorders, 36(8):1949-1955 |
ISSN: | 1531-8257 |
Popis: | BACKGROUND Systematic perceptual distortions of tactile space have been documented in healthy adults. In isolated focal dystonia impaired spatial somatosensory processing is suggested to be a central pathophysiological finding, but the structure of tactile space for different body parts has not been previously explored. OBJECTIVES The objective of this study was to assess tactile space organization with a novel behavioral paradigm of tactile distance perception in patients with isolated focal dystonia and controls. METHODS Three groups of isolated focal dystonia patients (cervical dystonia, blepharospasm/Meige syndrome, focal hand dystonia) and controls estimated perceived distances between 2 touches across 8 orientations on the back of both hands and the forehead. RESULTS Stimulus size judgments differed significantly across orientations in all groups replicating distortions of tactile space known for healthy individuals. There were no differences between groups in the behavioral parameters we assessed on the hands and forehead. CONCLUSIONS Tactile space organization is comparable between patients with isolated focal dystonia and healthy controls in dystonic and unaffected body parts. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society. |
Databáze: | OpenAIRE |
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