{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/95247"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/95247","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Mechanisms for enabling closed-loop upper limb sensorimotor prosthetic control","abstract":"Myoelectric upper limb prostheses are limited in their ability to provide sensory feedback to a user. The lack of sensory feedback forces prosthesis users to rely on visual feedback alone in manipulating objects, and often leads to abandonment of the prosthesis in favor of the user's unimpaired arm. Consequently, there is a critical need to develop mechanisms that enable people with upper limb amputations to be able to receive sensory feedback from the environment. The goal of this dissertation is to describe the development and evaluation of various mechanisms that enable simultaneous myoelectric control of hand prostheses with proprioceptive and touch/pressure feedback. Sensory feedback is enabled through the use of a passive skin stretch mechanism for proprioception (Chapter 2), an epidermal electronic device that can provide electrotactile stimulation (Chapter 3), and a custom-built prosthetic hand that relays contact and pressure information from the fingertips (Chapter 4). In each of these chapters, motor control is simultaneously enabled through the use of electromyographic sensors. The remainder of the dissertation focuses on a method of enabling long-term wear of electrotactile stimulation electrodes by modeling (Chapter 5) and controlling (Chapter 6) sensation intensity in response to changes in the impedance of the electrode-skin interface. The techniques described in this dissertation have the potential to improve prosthesis embodiment for a person with an upper limb amputation, with the ultimate goal of reducing prosthesis abandonment and improving quality of life.","abstract_html":"Myoelectric upper limb prostheses are limited in their ability to provide sensory feedback to a user. The lack of sensory feedback forces prosthesis users to rely on visual feedback alone in manipulating objects, and often leads to abandonment of the prosthesis in favor of the user's unimpaired arm. Consequently, there is a critical need to develop mechanisms that enable people with upper limb amputations to be able to receive sensory feedback from the environment. The goal of this dissertation is to describe the development and evaluation of various mechanisms that enable simultaneous myoelectric control of hand prostheses with proprioceptive and touch/pressure feedback. Sensory feedback is enabled through the use of a passive skin stretch mechanism for proprioception (Chapter 2), an epidermal electronic device that can provide electrotactile stimulation (Chapter 3), and a custom-built prosthetic hand that relays contact and pressure information from the fingertips (Chapter 4). In each of these chapters, motor control is simultaneously enabled through the use of electromyographic sensors. The remainder of the dissertation focuses on a method of enabling long-term wear of electrotactile stimulation electrodes by modeling (Chapter 5) and controlling (Chapter 6) sensation intensity in response to changes in the impedance of the electrode-skin interface. The techniques described in this dissertation have the potential to improve prosthesis embodiment for a person with an upper limb amputation, with the ultimate goal of reducing prosthesis abandonment and improving quality of life.","abstract_has_math":false,"creators":["Akhtar, Aadeel"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Neuroscience","degree_department":null,"school":null,"contributors":["Bretl, Timothy","Hargrove, Levi","Hsiao-Wecksler, Elizabeth T.","Nelson, Mark"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-03-01T15:16:24Z","date_published":"2017-03-01T15:16:24Z","updated_at":"2026-07-22T22:26:35Z","subjects":["proprioception","myoelectric control","electromyography","prosthetics","amputation","electrotactile stimulation","sensory substitution","robotic hand","low-cost","epidermal electronics","haptic feedback"],"languages":["en"],"rights":["Copyright 2016 Aadeel Akhtar"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/95247","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Bretl, Timothy","Hargrove, Levi","Hsiao-Wecksler, Elizabeth T.","Nelson, Mark"]},{"key":"dc:creator","label":"Author","values":["Akhtar, Aadeel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2017-03-01T15:16:24Z","2016-12-01","2016-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Neuroscience"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["proprioception","myoelectric control","electromyography","prosthetics","amputation","electrotactile stimulation","sensory substitution","robotic hand","low-cost","epidermal electronics","haptic feedback"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2016 Aadeel Akhtar"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/95247"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Myoelectric upper limb prostheses are limited in their ability to provide sensory feedback to a user. The lack of sensory feedback forces prosthesis users to rely on visual feedback alone in manipulating objects, and often leads to abandonment of the prosthesis in favor of the user's unimpaired arm. Consequently, there is a critical need to develop mechanisms that enable people with upper limb amputations to be able to receive sensory feedback from the environment. The goal of this dissertation is to describe the development and evaluation of various mechanisms that enable simultaneous myoelectric control of hand prostheses with proprioceptive and touch/pressure feedback. Sensory feedback is enabled through the use of a passive skin stretch mechanism for proprioception (Chapter 2), an epidermal electronic device that can provide electrotactile stimulation (Chapter 3), and a custom-built prosthetic hand that relays contact and pressure information from the fingertips (Chapter 4). In each of these chapters, motor control is simultaneously enabled through the use of electromyographic sensors. The remainder of the dissertation focuses on a method of enabling long-term wear of electrotactile stimulation electrodes by modeling (Chapter 5) and controlling (Chapter 6) sensation intensity in response to changes in the impedance of the electrode-skin interface. The techniques described in this dissertation have the potential to improve prosthesis embodiment for a person with an upper limb amputation, with the ultimate goal of reducing prosthesis abandonment and improving quality of life.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2017-02-28 without embargo terms","The student, Aadeel Akhtar, accepted the attached license on 2016-11-23 at 16:01.","The student, Aadeel Akhtar, submitted this Dissertation for approval on 2016-11-29 at 12:52.","This Dissertation was approved for publication on 2016-12-01 at 08:31.","DSpace SAF Submission Ingestion Package generated from Vireo submission #10315 on 2017-02-28 at 14:52:43","Made available in DSpace on 2017-03-01T15:16:24Z (GMT). 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The lack of sensory feedback forces prosthesis users to rely on visual feedback alone in manipulating objects, and often leads to abandonment of the prosthesis in favor of the user's unimpaired arm. Consequently, there is a critical need to develop mechanisms that enable people with upper limb amputations to be able to receive sensory feedback from the environment. The goal of this dissertation is to describe the development and evaluation of various mechanisms that enable simultaneous myoelectric control of hand prostheses with proprioceptive and touch/pressure feedback. Sensory feedback is enabled through the use of a passive skin stretch mechanism for proprioception (Chapter 2), an epidermal electronic device that can provide electrotactile stimulation (Chapter 3), and a custom-built prosthetic hand that relays contact and pressure information from the fingertips (Chapter 4). In each of these chapters, motor control is simultaneously enabled through the use of electromyographic sensors. The remainder of the dissertation focuses on a method of enabling long-term wear of electrotactile stimulation electrodes by modeling (Chapter 5) and controlling (Chapter 6) sensation intensity in response to changes in the impedance of the electrode-skin interface. The techniques described in this dissertation have the potential to improve prosthesis embodiment for a person with an upper limb amputation, with the ultimate goal of reducing prosthesis abandonment and improving quality of life.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2017-02-28 without embargo terms","The student, Aadeel Akhtar, accepted the attached license on 2016-11-23 at 16:01.","The student, Aadeel Akhtar, submitted this Dissertation for approval on 2016-11-29 at 12:52.","This Dissertation was approved for publication on 2016-12-01 at 08:31.","DSpace SAF Submission Ingestion Package generated from Vireo submission #10315 on 2017-02-28 at 14:52:43","Made available in DSpace on 2017-03-01T15:16:24Z (GMT). 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