A Haptic Feedback Scheme to Accurately Position a Virtual Wrist Prosthesis Using a Three-Node Tactor Array
Identifieur interne : 000B79 ( Main/Merge ); précédent : 000B78; suivant : 000B80A Haptic Feedback Scheme to Accurately Position a Virtual Wrist Prosthesis Using a Three-Node Tactor Array
Auteurs : Andrew Erwin [États-Unis] ; Frank C. Sup [États-Unis]Source :
- PLoS ONE [ 1932-6203 ] ; 2015.
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Abstract
In this paper, a novel haptic feedback scheme, used for accurately positioning a 1DOF virtual wrist prosthesis through sensory substitution, is presented. The scheme employs a three-node tactor array and discretely and selectively modulates the stimulation frequency of each tactor to relay 11 discrete haptic stimuli to the user. Able-bodied participants were able to move the virtual wrist prosthesis via a surface electromyography based controller. The participants evaluated the feedback scheme without visual or audio feedback and relied solely on the haptic feedback alone to correctly position the hand. The scheme was evaluated through both normal (perpendicular) and shear (lateral) stimulations applied on the forearm. Normal stimulations were applied through a prototype device previously developed by the authors while shear stimulations were generated using an ubiquitous coin motor vibrotactor. Trials with no feedback served as a baseline to compare results within the study and to the literature. The results indicated that using normal and shear stimulations resulted in accurately positioning the virtual wrist, but were not significantly different. Using haptic feedback was substantially better than no feedback. The results found in this study are significant since the feedback scheme allows for using relatively few tactors to relay rich haptic information to the user and can be learned easily despite a relatively short amount of training. Additionally, the results are important for the haptic community since they contradict the common conception in the literature that normal stimulation is inferior to shear. From an ergonomic perspective normal stimulation has the potential to benefit upper limb amputees since it can operate at lower frequencies than shear-based vibrotactors while also generating less noise. Through further tuning of the novel haptic feedback scheme and normal stimulation device, a compact and comfortable sensory substitution device for upper limb amputees might be created.
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DOI: 10.1371/journal.pone.0134095
PubMed: 26263015
PubMed Central: 4532410
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Sup</name><affiliation wicri:level="4"><nlm:aff id="aff002"><addr-line>Mechanical and Industrial Engineering Department, University of Massachusetts Amherst, Amherst, MA, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Mechanical and Industrial Engineering Department, University of Massachusetts Amherst, Amherst, MA</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName><orgName type="university">Université du Massachusetts à Amherst</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26263015</idno><idno type="pmc">4532410</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4532410</idno><idno type="RBID">PMC:4532410</idno><idno type="doi">10.1371/journal.pone.0134095</idno><date when="2015">2015</date><idno type="wicri:Area/Pmc/Corpus">000316</idno><idno type="wicri:Area/Pmc/Curation">000316</idno><idno type="wicri:Area/Pmc/Checkpoint">000791</idno><idno type="wicri:source">PubMed</idno><idno type="wicri:Area/PubMed/Corpus">000278</idno><idno type="wicri:Area/PubMed/Curation">000278</idno><idno type="wicri:Area/PubMed/Checkpoint">000456</idno><idno type="wicri:Area/Ncbi/Merge">003B49</idno><idno type="wicri:Area/Ncbi/Curation">003B49</idno><idno type="wicri:Area/Ncbi/Checkpoint">003B49</idno><idno type="wicri:Area/Main/Merge">000B79</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">A Haptic Feedback Scheme to Accurately Position a Virtual Wrist Prosthesis Using a Three-Node Tactor Array</title><author><name sortKey="Erwin, Andrew" sort="Erwin, Andrew" uniqKey="Erwin A" first="Andrew" last="Erwin">Andrew Erwin</name><affiliation wicri:level="2"><nlm:aff id="aff001"><addr-line>Mechanical Engineering Department, Rice University, Houston, TX, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Mechanical Engineering Department, Rice University, Houston, TX</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author><author><name sortKey="Sup, Frank C" sort="Sup, Frank C" uniqKey="Sup F" first="Frank C." last="Sup">Frank C. Sup</name><affiliation wicri:level="4"><nlm:aff id="aff002"><addr-line>Mechanical and Industrial Engineering Department, University of Massachusetts Amherst, Amherst, MA, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Mechanical and Industrial Engineering Department, University of Massachusetts Amherst, Amherst, MA</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName><orgName type="university">Université du Massachusetts à Amherst</orgName></affiliation></author></analytic><series><title level="j">PLoS ONE</title><idno type="eISSN">1932-6203</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Artificial Limbs</term><term>Computer Simulation</term><term>Electromyography</term><term>Feedback, Sensory</term><term>Female</term><term>Humans</term><term>Male</term><term>Prosthesis Design</term><term>User-Computer Interface</term><term>Wrist</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Artificial Limbs</term><term>Computer Simulation</term><term>Electromyography</term><term>Feedback, Sensory</term><term>Female</term><term>Humans</term><term>Male</term><term>Prosthesis Design</term><term>User-Computer Interface</term><term>Wrist</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>In this paper, a novel haptic feedback scheme, used for accurately positioning a 1DOF virtual wrist prosthesis through sensory substitution, is presented. The scheme employs a three-node tactor array and discretely and selectively modulates the stimulation frequency of each tactor to relay 11 discrete haptic stimuli to the user. Able-bodied participants were able to move the virtual wrist prosthesis via a surface electromyography based controller. The participants evaluated the feedback scheme without visual or audio feedback and relied solely on the haptic feedback alone to correctly position the hand. The scheme was evaluated through both normal (perpendicular) and shear (lateral) stimulations applied on the forearm. Normal stimulations were applied through a prototype device previously developed by the authors while shear stimulations were generated using an ubiquitous coin motor vibrotactor. Trials with no feedback served as a baseline to compare results within the study and to the literature. The results indicated that using normal and shear stimulations resulted in accurately positioning the virtual wrist, but were not significantly different. Using haptic feedback was substantially better than no feedback. The results found in this study are significant since the feedback scheme allows for using relatively few tactors to relay rich haptic information to the user and can be learned easily despite a relatively short amount of training. Additionally, the results are important for the haptic community since they contradict the common conception in the literature that normal stimulation is inferior to shear. From an ergonomic perspective normal stimulation has the potential to benefit upper limb amputees since it can operate at lower frequencies than shear-based vibrotactors while also generating less noise. Through further tuning of the novel haptic feedback scheme and normal stimulation device, a compact and comfortable sensory substitution device for upper limb amputees might be created.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Staff, N" uniqKey="Staff N">N Staff</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sherman, Ed" uniqKey="Sherman E">ED Sherman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Antfolk, C" uniqKey="Antfolk C">C Antfolk</name></author><author><name sortKey="Cipriani, C" uniqKey="Cipriani C">C Cipriani</name></author><author><name sortKey="Controzzi, M" uniqKey="Controzzi M">M Controzzi</name></author><author><name sortKey="Carrozza, Mc" uniqKey="Carrozza M">MC Carrozza</name></author><author><name sortKey="Lundborg, G" uniqKey="Lundborg G">G Lundborg</name></author></analytic></biblStruct><biblStruct><analytic><author><name 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