Neural feedback strategies to improve grasping coordination in neuromusculoskeletal prostheses.

Autor: Mastinu E; Center for Bionics and Pain Research, Mölndal, Sweden.; Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden., Engels LF; The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy.; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Pisa, Italy., Clemente F; The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy.; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Pisa, Italy.; Prensilia SRL, Pontedera, Italy., Dione M; Department of Physiology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden., Sassu P; Department of Hand Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden., Aszmann O; Clinical Laboratory for Bionic Extremity Reconstruction, Division of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria., Brånemark R; Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.; Center for Extreme Bionics, Biomechatronics Group, MIT Media Lab, Massachusetts Institute of Technology, Cambridge, MA, USA., Håkansson B; Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden., Controzzi M; The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy.; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Pisa, Italy., Wessberg J; Department of Physiology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden., Cipriani C; The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy.; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Pisa, Italy., Ortiz-Catalan M; Center for Bionics and Pain Research, Mölndal, Sweden. maxo@chalmers.se.; Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden. maxo@chalmers.se.; Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. maxo@chalmers.se.; Operational Area 3, Sahlgrenska University Hospital, Mölndal, Sweden. maxo@chalmers.se.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2020 Jul 16; Vol. 10 (1), pp. 11793. Date of Electronic Publication: 2020 Jul 16.
DOI: 10.1038/s41598-020-67985-5
Abstrakt: Conventional prosthetic arms suffer from poor controllability and lack of sensory feedback. Owing to the absence of tactile sensory information, prosthetic users must rely on incidental visual and auditory cues. In this study, we investigated the effect of providing tactile perception on motor coordination during routine grasping and grasping under uncertainty. Three transhumeral amputees were implanted with an osseointegrated percutaneous implant system for direct skeletal attachment and bidirectional communication with implanted neuromuscular electrodes. This neuromusculoskeletal prosthesis is a novel concept of artificial limb replacement that allows to extract control signals from electrodes implanted on viable muscle tissue, and to stimulate severed afferent nerve fibers to provide somatosensory feedback. Subjects received tactile feedback using three biologically inspired stimulation paradigms while performing a pick and lift test. The grasped object was instrumented to record grasping and lifting forces and its weight was either constant or unexpectedly changed in between trials. The results were also compared to the no-feedback control condition. Our findings confirm, in line with the neuroscientific literature, that somatosensory feedback is necessary for motor coordination during grasping. Our results also indicate that feedback is more relevant under uncertainty, and its effectiveness can be influenced by the selected neuromodulation paradigm and arguably also the prior experience of the prosthesis user.
Databáze: MEDLINE
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