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dc.contributor.authorIsaković, Milica
dc.contributor.authorMalešević, Jovana
dc.contributor.authorKeller, Thierry
dc.contributor.authorKostić, Miloš
dc.contributor.authorŠtrbac, Matija
dc.date.accessioned2019-04-11T10:06:58Z
dc.date.available2019-04-11T10:06:58Z
dc.date.issued2019
dc.identifier.issn1176-2322en
dc.identifier.urihttp://hdl.handle.net/11556/702
dc.description.abstractThe main drawback of the commercially available myoelectric hand prostheses is the absence of somatosensory feedback. We recently developed a feedback interface for multiple degrees of freedom myoelectric prosthesis that allows proprioceptive and sensory information (i.e., grasping force) to be transmitted to the wearer instantaneously. High information bandwidth is achieved through intelligent control of spatiotemporal distribution of electrical pulses over a custom-designed electrode array. As electrotactile sensations are location-dependent and the developed interface requires that electrical stimuli are perceived to be of the same intensity on all locations, a calibration procedure is of high importance. The aim of this study was to gain more insight into the calibration procedure and optimize this process by leveraging a priori knowledge. For this purpose, we conducted a study with 9 able-bodied subjects performing 10 sessions of the array electrode calibration. Based on the collected data, we optimized and simplified the calibration procedure by adapting the initial (baseline) amplitude values in the calibration algorithm. The results suggest there is an individual pattern of stimulation amplitudes across 16 electrode pads for each subject, which is not affected by the initial amplitudes. Moreover, the number of user actions performed and the time needed for the calibration procedure are significantly reduced by the proposed methodology.en
dc.description.sponsorshipThe research was supported by Tecnalia Research & Innovation, Spain, and the Ministry of Education, Science and Technological Development of Republic of Serbia (Project no. 175016). The authors would like to thank all the volunteers who participated in this study.en
dc.language.isoengen
dc.publisherHindawi Limiteden
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleOptimization of Semiautomated Calibration Algorithm of Multichannel Electrotactile Feedback for Myoelectric Hand Prosthesisen
dc.typearticleen
dc.identifier.doi10.1155/2019/9298758en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsMyoelectrically controlled prostheticsen
dc.subject.keywordsCalibration algorithmen
dc.subject.keywordsCalibration procedureen
dc.subject.keywordsElectrotactile feedbacksen
dc.subject.keywordsLocation dependentsen
dc.subject.keywordsMultiple degrees of freedomen
dc.subject.keywordsSpatiotemporal distributionsen
dc.identifier.essn1754-2103en
dc.journal.titleApplied Bionics and Biomechanicsen
dc.page.final9en
dc.page.initial1en
dc.volume.number2019en


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    Attribution 4.0 InternationalExcept where otherwise noted, this item's license is described as Attribution 4.0 International