2020
DOI: 10.1088/1741-2552/abb861
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Sensory stimulation enhances phantom limb perception and movement decoding

Abstract: Objective. A major challenge for controlling a prosthetic arm is communication between the device and the user’s phantom limb. We show the ability to enhance phantom limb perception and improve movement decoding through targeted transcutaneous electrical nerve stimulation in individuals with an arm amputation. Approach. Transcutaneous nerve stimulation experiments were performed with four participants with arm amputation to map phantom limb perception. We measured myoelectric signals during phantom hand moveme… Show more

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Cited by 18 publications
(12 citation statements)
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“…S3 B). These observations are consistent with our prior work that enhanced activation of sensorimotor regions persisted in Post-Stim 5 . Here, our findings on sustained integration suggest that sensory stimulation could have short-term influences on the large-scale systems in the brain.…”
Section: Discussionsupporting
confidence: 93%
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“…S3 B). These observations are consistent with our prior work that enhanced activation of sensorimotor regions persisted in Post-Stim 5 . Here, our findings on sustained integration suggest that sensory stimulation could have short-term influences on the large-scale systems in the brain.…”
Section: Discussionsupporting
confidence: 93%
“…Further, when such interaction was present, the task of performing a phantom hand movement showed improved outcome. Our previous work showed improved motor decoding accuracy after sensory stimulation 5 .…”
Section: Discussionmentioning
confidence: 94%
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“…In human patients with unilateral upper extremity amputation, deafferented S1 responds to stimulation of the ipsilateral intact hand (Makin et al, 2015;Valyear et al, 2020) in addition to the contralateral phantom hand (Ding et al, 2020;Osborn et al, 2020), rather than to the corticallyadjacent lower face (which would be predicted by the classical explanation). Atypical ipsilateral responses in deafferented S1 are well-documented despite some evidence for a persistent cortical representation of the absent hand, wherein acquired amputees show a cortical representation of their intact hand, with a functional relationship between this "absent hand representation" and phantom sensation (Reilly et al, 2006;Makin and Bensmaia, 2017;Wesselink et al, 2019).…”
Section: Introductionmentioning
confidence: 99%
“…Body-powered prostheses are known to supply indirect proprioceptive feedback thanks to the fixed relationship between cables and joint angles [ 110 ]. This incidental sensory feedback could explain why training and adaptation might play an important role in achieving embodiment [ 73 ] and why embodiment seems achievable with various types of prostheses regardless of whether they are body-powered or myoelectric [ 8 ], functional or cosmetic [ 111 ], or when directly fixated to the bone via osseointegration with [ 112 , 113 ] or without peripheral nerve stimulation [ 114 , 115 ]. These findings reiterate the importance of having reliable means to quantify the level of embodiment that a certain prosthesis can achieve.…”
Section: Allure Of Embodiment To Justify Sensory Feedback Researchmentioning
confidence: 99%