Brain Activation in a Myoelectric Prosthetic Hand

Paz, Aloysio Campos da; Braga, Lúcia Willadino

doi:10.1097/bpo.0b013e3181558c7b

Cited by 7 publications

(3 citation statements)

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“…Maruishi et al demonstrated that the right ventral premotor cortex and right posterior parietal cortex were involved in manipulating the EMG prosthetic hand [11]. Another study indicated that brain activation in Brodmann motor areas 6, 4, 3, 1 and 2; visual area 19; and the cerebellum were observed when the patient contracted the remaining stump muscles and thought about opening and closing her myoelectric prosthetic hand [25]. …”

Section: Discussionmentioning

confidence: 99%

Cerebral blood perfusion changes in amputees with myoelectric hands after rehabilitation: a SPECT computer-aided analysis

Liu

Zheng

et al. 2016

BMC Neurosci

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BackgroundRehabilitation, which is essential for amputees with myoelectric hands, can improve the quality of daily life by remodeling the neuron network. In our study, we aim to develop a cerebral blood perfusion (CBF) single-photon emission computed tomography computer-aided (SPECT-CA) detection scheme to automatically locate the brain’s activated regions after rehabilitation.ResultsFive participants without forearms (three male, two female, mean age 51 ± 12.89 years, two missing the right side, and three missing the left side) were included in our study. In the clinical assessment, all of the participants received higher scores after training. The results of the SPM analysis indicated that CBF in the precentral gyrus, postcentral gyrus, frontal lobe, temporal lobe and cerebellum was significantly different among the five participants (P < 0.05). Moreover, SPECT-CA showed that the activated brain areas mainly included the precentral gyrus, postcentral gyrus, cerebellum and extensive cerebral cortex.ConclusionOur study demonstrated that the CBF SPECT-CA method can detect the brain blood perfusion changes induced by rehabilitation with high sensitivity and accuracy. This method has great potential for locating the remodeled neuron regions of amputees with myoelectric hands after rehabilitation.Electronic supplementary materialThe online version of this article (doi:10.1186/s12868-016-0294-3) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Cerebral blood perfusion changes in amputees with myoelectric hands after rehabilitation: a SPECT computer-aided analysis

Liu

Zheng

et al. 2016

BMC Neurosci

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“…Functional MRI studies with unilateral congenital amputees have shown similar cortical activation patterns in the motor cortices on both sides. 21, 22 However, phantom limb sensation, which involves a neural representation of the limb, is more common with acquired amputees (present in 75% or more cases) 23, 24 than with congenital amputees (~20% of cases). 25 Even so, many believe that this representation develops regardless of the development of the physical limb.…”

Section: Discussionmentioning

confidence: 99%

Pattern recognition control of multifunction myoelectric prostheses by patients with congenital transradial limb defects

Kryger

Schultz

Kuiken

2011

Prosthetics &Amp; Orthotics International

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Background Electromyography (EMG) pattern recognition offers the potential for improved control of multifunction myoelectric prostheses. However, it is unclear whether this technology can be successfully used by congenital amputees. Objective The purpose of this investigation was to assess the ability of congenital transradial amputees to control a virtual multifunction prosthesis using EMG pattern recognition and compare their performance to that of acquired amputees from a previous study. Study Design Preliminary cross-sectional study. Methods Four congenital transradial amputees trained and tested a linear discriminant analysis (LDA) classifier with four wrist movements, five hand movements, and a no movement class. Subjects then tested the classifier in real time using a virtual arm. Results Performance metrics for the residual limb were poorer than those with the intact limb (classification accuracy: 52.1% ± 15.0% vs. 93.2% ± 15.8%; motion-completion rate: 49.0% ± 23.0% vs. 84.0% ± 9.4%; motion-completion time: 2.05 ± 0.75 s vs. 1.13 ± 0.05 s, respectively). On average, performance with the residual limb by congenital amputees was reduced compared to that reported for acquired transradial amputees. However, one subject performed similarly to acquired amputees. Conclusions Pattern recognition control may be a viable option for some congenital amputees. Further study is warranted to determine success factors.

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“…Research has been directed at the use of direct brain-wave control for operating prosthetics. Cerebral control has the major advantage that it bypasses the peripheral nervous system in the remaining limb, which may be damaged [630]. Another avenue of interest is whether prosthetics can be directly implanted into a stump.…”

Section: Orthoticsmentioning

confidence: 99%

Medical textiles

Morris

Murray

2020

Textile Progress

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Brain Activation in a Myoelectric Prosthetic Hand

Abstract: Further research in brain control and improvement of myoelectric prosthesis will lead to a more holistic approach in the development of a man-machine complex.

Cited by 7 publications

References 4 publications

Cerebral blood perfusion changes in amputees with myoelectric hands after rehabilitation: a SPECT computer-aided analysis

Cerebral blood perfusion changes in amputees with myoelectric hands after rehabilitation: a SPECT computer-aided analysis

Pattern recognition control of multifunction myoelectric prostheses by patients with congenital transradial limb defects

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