When proprioceptive feedback enhances visual perception of self-body movement: rehabilitation perspectives

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Title: When proprioceptive feedback enhances visual perception of self-body movement: rehabilitation perspectives
Authors: Schlienger, Raphaëlle, de Giovanni, Claire, Guerraz, Michel, Kavounoudias, Anne
Contributors: HAL AMU, Administrateur, Laboratoire de Neurosciences Cognitives Marseille (LNC), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Psychologie et NeuroCognition (LPNC), Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), ANR-17-EURE-0029,nEURo*AMU,Marseille NeuroSchool, une formation d'excellence(2017)
Source: Front Hum Neurosci
Frontiers in Human Neuroscience, Vol 17 (2023)
Publisher Information: Frontiers Media SA, 2023.
Publication Year: 2023
Subject Terms: [SHS.PSY] Humanities and Social Sciences/Psychology, [SCCO]Cognitive science, leg movement, [SHS.PSY]Humanities and Social Sciences/Psychology, muscle tendon vibration, proprio-visual integration, mirror therapy, Neurosciences. Biological psychiatry. Neuropsychiatry, [SCCO] Cognitive science, kinesthesia, RC321-571, Neuroscience
Description: IntroductionRehabilitation approaches take advantage of vision’s important role in kinesthesia, using the mirror paradigm as a means to reduce phantom limb pain or to promote recovery from hemiparesis. Notably, it is currently applied to provide a visual reafferentation of the missing limb to relieve amputees’ pain. However, the efficiency of this method is still debated, possibly due to the absence of concomitant coherent proprioceptive feedback. We know that combining congruent visuo-proprioceptive signals at the hand level enhances movement perception in healthy people. However, much less is known about lower limbs, for which actions are far less visually controlled in everyday life than upper limbs. Therefore, the present study aimed to explore, with the mirror paradigm, the benefit of combined visuo-proprioceptive feedback from the lower limbs of healthy participants.MethodsWe compared the movement illusions driven by visual or proprioceptive afferents and tested the extent to which adding proprioceptive input to the visual reflection of the leg improved the resulting movement illusion. To this end, 23 healthy adults were exposed to mirror or proprioceptive stimulation and concomitant visuo-proprioceptive stimulation. In the visual conditions, participants were asked to voluntarily move their left leg in extension and look at its reflection in the mirror. In the proprioceptive conditions, a mechanical vibration was applied to the hamstring muscle of the leg hidden behind the mirror to simulate an extension of the leg, either exclusively or concomitantly, to the visual reflection of the leg in the mirror.Results(i) Visual stimulation evoked leg movement illusions but with a lower velocity than the actual movement reflection on the mirror; (ii) proprioceptive stimulation alone provided more salient illusions than the mirror illusion; and (iii) adding a congruent proprioceptive stimulation improved the saliency, amplitude, and velocity of the illusion.ConclusionThe present findings confirm that visuo-proprioceptive integration occurs efficiently when the mirror paradigm is coupled with mechanical vibration at the lower limbs, thus providing promising new perspectives for rehabilitation.
Document Type: Article
Other literature type
File Description: application/pdf
ISSN: 1662-5161
DOI: 10.3389/fnhum.2023.1144033
Access URL: https://pubmed.ncbi.nlm.nih.gov/37250699
https://doaj.org/article/3b32b7a6d4c04fb6b4cbe960224abb16
https://hal.science/hal-04207888v1/document
https://hal.science/hal-04207888v1
https://doi.org/10.3389/fnhum.2023.1144033
Rights: CC BY
Accession Number: edsair.doi.dedup.....fe6172945a7d4de4099b228c9c83598a
Database: OpenAIRE
Description
Abstract:IntroductionRehabilitation approaches take advantage of vision’s important role in kinesthesia, using the mirror paradigm as a means to reduce phantom limb pain or to promote recovery from hemiparesis. Notably, it is currently applied to provide a visual reafferentation of the missing limb to relieve amputees’ pain. However, the efficiency of this method is still debated, possibly due to the absence of concomitant coherent proprioceptive feedback. We know that combining congruent visuo-proprioceptive signals at the hand level enhances movement perception in healthy people. However, much less is known about lower limbs, for which actions are far less visually controlled in everyday life than upper limbs. Therefore, the present study aimed to explore, with the mirror paradigm, the benefit of combined visuo-proprioceptive feedback from the lower limbs of healthy participants.MethodsWe compared the movement illusions driven by visual or proprioceptive afferents and tested the extent to which adding proprioceptive input to the visual reflection of the leg improved the resulting movement illusion. To this end, 23 healthy adults were exposed to mirror or proprioceptive stimulation and concomitant visuo-proprioceptive stimulation. In the visual conditions, participants were asked to voluntarily move their left leg in extension and look at its reflection in the mirror. In the proprioceptive conditions, a mechanical vibration was applied to the hamstring muscle of the leg hidden behind the mirror to simulate an extension of the leg, either exclusively or concomitantly, to the visual reflection of the leg in the mirror.Results(i) Visual stimulation evoked leg movement illusions but with a lower velocity than the actual movement reflection on the mirror; (ii) proprioceptive stimulation alone provided more salient illusions than the mirror illusion; and (iii) adding a congruent proprioceptive stimulation improved the saliency, amplitude, and velocity of the illusion.ConclusionThe present findings confirm that visuo-proprioceptive integration occurs efficiently when the mirror paradigm is coupled with mechanical vibration at the lower limbs, thus providing promising new perspectives for rehabilitation.
ISSN:16625161
DOI:10.3389/fnhum.2023.1144033