Passive or simulated displacement of one arm (but not its mirror reflection) modulates the involuntary motor behavior of the other arm
| Autor: | Marie Chancel, Marion Luyat, C. Brun, Michel Guerraz, Morgane Metral, Anne Kavounoudias |
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| Přispěvatelé: | Laboratoire de Psychologie et NeuroCognition (LPNC), Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 (PSITEC), Université de Lille, Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Neurobiologie intégrative et adaptative (NIA), Université de Provence - Aix-Marseille 1-Centre National de la Recherche Scientifique (CNRS), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
Male
medicine.medical_specialty media_common.quotation_subject Illusion [SHS.PSY]Humanities and Social Sciences/Psychology Kohnstamm phenomenon Isometric exercise Electromyography Vibration Young Adult Physical medicine and rehabilitation Forearm Isometric Contraction Physical Stimulation medicine Humans Displacement (orthopedic surgery) muscular afferents Muscle Skeletal bimanual coupling media_common Physics mirror paradigm Communication Proprioception medicine.diagnostic_test business.industry [SCCO.NEUR]Cognitive science/Neuroscience General Neuroscience Mirror reflection Illusions medicine.anatomical_structure Arm Visual Perception Female medicine.symptom business Muscle contraction |
| Zdroj: | Neuroscience Neuroscience, Elsevier-International Brain Research Organization, 2015, 285, pp.343-355. ⟨10.1016/j.neuroscience.2014.11.036⟩ Neuroscience, 2015, 285, pp.343-355. ⟨10.1016/j.neuroscience.2014.11.036⟩ |
| ISSN: | 0306-4522 1873-7544 |
| DOI: | 10.1016/j.neuroscience.2014.11.036 |
| Popis: | International audience; Recent studies of both healthy and patient populations have cast doubt on the mirror paradigm’s beneficial effect on motor behavior. Indeed, the voluntary arm displacement that accompanies reflection in the mirror may be the determining factor in terms of the motor behavior of the contralateral arm. The objective of the present study was to assess the respective effects of mirror reflection and arm displacement (whether real or simulated) on involuntary motor behavior of the contralateral arm following sustained, isometric contraction (Kohnstamm phenomenon). Our results revealed that (i) passive displacement of one arm (displacement of the left arm via a motorized manipulandum moving at 4°/s) influenced the velocity of the Kohnstamm phenomenon (forearm flexion occurring shortly after the cessation of muscle contraction) in the contralateral arm and (ii) mirror vision had no effect. Indeed, the velocity of the Kohnstamm phenomenon tended to be adjusted to match the velocity of the passive displacement of the other arm. In a second experiment, arm displacement was simulated by vibrating the triceps at 25, 50 or 75 Hz. Results showed that the velocity of the Kohnstamm phenomenon in one arm increased with the vibration frequency applied to the other arm. Our results revealed the occurrence of bimanual coupling because involuntary displacement of one arm was regulated by muscle-related information generated by the actual or simulated displacement of the other arm. In line with the literature data on voluntary motor behavior, our study failed to evidence an additional impact of mirror vision on involuntary motor behavior. |
| Databáze: | OpenAIRE |
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