Multisensory stimulation decreases phantom limb distortions and is optimally integrated
Summary: The multisensory integration of signals from different senses is crucial to develop an unambiguous percept of the environment and our body. Losing a limb causes drastic changes in the body, sometimes causing pain and distorted phantom limb perception. Despite the debate over why these pheno...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004222003996 |
| _version_ | 1818644894034427904 |
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| author | Gaia Risso Greta Preatoni Giacomo Valle Michele Marazzi Noëlle Moana Bracher Stanisa Raspopovic |
| author_facet | Gaia Risso Greta Preatoni Giacomo Valle Michele Marazzi Noëlle Moana Bracher Stanisa Raspopovic |
| author_sort | Gaia Risso |
| collection | DOAJ |
| description | Summary: The multisensory integration of signals from different senses is crucial to develop an unambiguous percept of the environment and our body. Losing a limb causes drastic changes in the body, sometimes causing pain and distorted phantom limb perception. Despite the debate over why these phenomena arise, some researchers suggested that they might be linked to an impairment of multisensory signals inflow and integration. Therefore, reestablishing optimally integrated sensory feedback could be crucial. The related benefits on sensory performance and body self-representation are still to be demonstrated, particularly in lower-limb amputees. We present a multisensory framework combining Virtual reality and electro-cutaneous stimulation that allows the optimal integration of visuo-tactile stimuli in lower-limb amputees even if nonspatially matching. We also showed that this multisensory stimulation allowed faster sensory processing, higher embodiment, and reductions in phantom limb distortions. Our findings support the development of multisensory rehabilitation approaches, restoring a correct body representation. |
| first_indexed | 2024-12-17T00:22:06Z |
| format | Article |
| id | doaj.art-ed64c5e81c68416ca926e8723cc48a0f |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-12-17T00:22:06Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-ed64c5e81c68416ca926e8723cc48a0f2022-12-21T22:10:33ZengElsevieriScience2589-00422022-04-01254104129Multisensory stimulation decreases phantom limb distortions and is optimally integratedGaia Risso0Greta Preatoni1Giacomo Valle2Michele Marazzi3Noëlle Moana Bracher4Stanisa Raspopovic5Robotics, Brain and Cognitive Sciences (RBCS), Italian Institute of Technology, Genoa 16163, Italy; Institute of Health, School of Health Sciences, HES-SO Valais-Wallis, Sion 1950, SwitzerlandLaboratory for Neuroengineering, Department of Health Sciences and Technology, Institute for Robotics and Intelligent Systems, ETH Zürich, Zürich 8092, SwitzerlandLaboratory for Neuroengineering, Department of Health Sciences and Technology, Institute for Robotics and Intelligent Systems, ETH Zürich, Zürich 8092, SwitzerlandLaboratory for Neuroengineering, Department of Health Sciences and Technology, Institute for Robotics and Intelligent Systems, ETH Zürich, Zürich 8092, SwitzerlandLaboratory for Neuroengineering, Department of Health Sciences and Technology, Institute for Robotics and Intelligent Systems, ETH Zürich, Zürich 8092, SwitzerlandLaboratory for Neuroengineering, Department of Health Sciences and Technology, Institute for Robotics and Intelligent Systems, ETH Zürich, Zürich 8092, Switzerland; Corresponding authorSummary: The multisensory integration of signals from different senses is crucial to develop an unambiguous percept of the environment and our body. Losing a limb causes drastic changes in the body, sometimes causing pain and distorted phantom limb perception. Despite the debate over why these phenomena arise, some researchers suggested that they might be linked to an impairment of multisensory signals inflow and integration. Therefore, reestablishing optimally integrated sensory feedback could be crucial. The related benefits on sensory performance and body self-representation are still to be demonstrated, particularly in lower-limb amputees. We present a multisensory framework combining Virtual reality and electro-cutaneous stimulation that allows the optimal integration of visuo-tactile stimuli in lower-limb amputees even if nonspatially matching. We also showed that this multisensory stimulation allowed faster sensory processing, higher embodiment, and reductions in phantom limb distortions. Our findings support the development of multisensory rehabilitation approaches, restoring a correct body representation.http://www.sciencedirect.com/science/article/pii/S2589004222003996Behavioral neuroscienceClinical neuroscienceTechniques in neuroscienceBioelectronics |
| spellingShingle | Gaia Risso Greta Preatoni Giacomo Valle Michele Marazzi Noëlle Moana Bracher Stanisa Raspopovic Multisensory stimulation decreases phantom limb distortions and is optimally integrated iScience Behavioral neuroscience Clinical neuroscience Techniques in neuroscience Bioelectronics |
| title | Multisensory stimulation decreases phantom limb distortions and is optimally integrated |
| title_full | Multisensory stimulation decreases phantom limb distortions and is optimally integrated |
| title_fullStr | Multisensory stimulation decreases phantom limb distortions and is optimally integrated |
| title_full_unstemmed | Multisensory stimulation decreases phantom limb distortions and is optimally integrated |
| title_short | Multisensory stimulation decreases phantom limb distortions and is optimally integrated |
| title_sort | multisensory stimulation decreases phantom limb distortions and is optimally integrated |
| topic | Behavioral neuroscience Clinical neuroscience Techniques in neuroscience Bioelectronics |
| url | http://www.sciencedirect.com/science/article/pii/S2589004222003996 |
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