Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands
Abstract Myoelectric prosthetic hands are typically controlled to move between discrete positions and do not provide sensory feedback to the user. In this work, we present and evaluate a closed-loop, continuous myoelectric prosthetic hand controller, that can continuously control the position of mul...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-87048-x |
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| author | Digby Chappell Zeyu Yang Angus B. Clark Alexandre Berkovic Colin Laganier Weston Baxter Fernando Bello Petar Kormushev Nicolas Rojas |
| author_facet | Digby Chappell Zeyu Yang Angus B. Clark Alexandre Berkovic Colin Laganier Weston Baxter Fernando Bello Petar Kormushev Nicolas Rojas |
| author_sort | Digby Chappell |
| collection | DOAJ |
| description | Abstract Myoelectric prosthetic hands are typically controlled to move between discrete positions and do not provide sensory feedback to the user. In this work, we present and evaluate a closed-loop, continuous myoelectric prosthetic hand controller, that can continuously control the position of multiple degrees of freedom of a prosthesis while rendering proprioceptive feedback to the user via a haptic feedback armband. Twenty-eight participants without and ten participants with upper limb difference (ULD) were recruited to holistically evaluate the physical and psychological effects of the controller via isolated control and sensory tasks, dexterity assessments, embodiment and task load questionnaires, and post-study interviews. The combination of proprioceptive feedback and continuous control enabled more accurate position and force modulation than without proprioceptive feedback, and restored blindfolded object identification ability to open-loop discrete controller levels. Dexterity assessment and embodiment questionnaire results revealed no significant physical performance or psychological embodiment differences between control types, with the exception of perceived sensation questions, which were significantly higher (p < 0.001) for closed-loop controllers. Key differences between participants with and without ULD were identified, including increasingly lower perceived body completeness and heterogeneity in frustration in participants with ULD, which can inform future development and rehabilitation. |
| format | Article |
| id | doaj-art-ea2c2dc487a14080b0edd72345bb5efe |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-ea2c2dc487a14080b0edd72345bb5efe2025-02-02T12:21:30ZengNature PortfolioScientific Reports2045-23222025-01-0115111510.1038/s41598-025-87048-xExamining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic handsDigby Chappell0Zeyu Yang1Angus B. Clark2Alexandre Berkovic3Colin Laganier4Weston Baxter5Fernando Bello6Petar Kormushev7Nicolas Rojas8Dyson School of Design Engineering, Faculty of Engineering, Imperial College LondonDepartment of Engineering Science, University of OxfordDepartment of Bioengineering, Faculty of Engineering, Imperial College LondonMIT Sloane School of Management, Massachusetts Institute of TechnologyDepartment of Computer Science, Faculty of Engineering, University College LondonDyson School of Design Engineering, Faculty of Engineering, Imperial College LondonDepartment of Surgery and Cancer, Faculty of Medicine, Imperial College LondonDyson School of Design Engineering, Faculty of Engineering, Imperial College LondonThe AI InstituteAbstract Myoelectric prosthetic hands are typically controlled to move between discrete positions and do not provide sensory feedback to the user. In this work, we present and evaluate a closed-loop, continuous myoelectric prosthetic hand controller, that can continuously control the position of multiple degrees of freedom of a prosthesis while rendering proprioceptive feedback to the user via a haptic feedback armband. Twenty-eight participants without and ten participants with upper limb difference (ULD) were recruited to holistically evaluate the physical and psychological effects of the controller via isolated control and sensory tasks, dexterity assessments, embodiment and task load questionnaires, and post-study interviews. The combination of proprioceptive feedback and continuous control enabled more accurate position and force modulation than without proprioceptive feedback, and restored blindfolded object identification ability to open-loop discrete controller levels. Dexterity assessment and embodiment questionnaire results revealed no significant physical performance or psychological embodiment differences between control types, with the exception of perceived sensation questions, which were significantly higher (p < 0.001) for closed-loop controllers. Key differences between participants with and without ULD were identified, including increasingly lower perceived body completeness and heterogeneity in frustration in participants with ULD, which can inform future development and rehabilitation.https://doi.org/10.1038/s41598-025-87048-x |
| spellingShingle | Digby Chappell Zeyu Yang Angus B. Clark Alexandre Berkovic Colin Laganier Weston Baxter Fernando Bello Petar Kormushev Nicolas Rojas Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands Scientific Reports |
| title | Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands |
| title_full | Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands |
| title_fullStr | Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands |
| title_full_unstemmed | Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands |
| title_short | Examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands |
| title_sort | examining the physical and psychological effects of combining multimodal feedback with continuous control in prosthetic hands |
| url | https://doi.org/10.1038/s41598-025-87048-x |
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