Reconstructing Synergy-Based Hand Grasp Kinematics from Electroencephalographic Signals

dc.contributor.authorPei, Dingyi
dc.contributor.authorOlikkal, Parthan Sathishkumar
dc.contributor.authorAdali, Tulay
dc.contributor.authorVinjamuri, Ramana
dc.date.accessioned2023-06-06T13:53:12Z
dc.date.available2023-06-06T13:53:12Z
dc.date.issued2022-07-18
dc.description.abstractBrain-machine interfaces (BMIs) have become increasingly popular in restoring the lost motor function in individuals with disabilities. Several research studies suggest that the CNS may employ synergies or movement primitives to reduce the complexity of control rather than controlling each DoF independently, and the synergies can be used as an optimal control mechanism by the CNS in simplifying and achieving complex movements. Our group has previously demonstrated neural decoding of synergy-based hand movements and used synergies effectively in driving hand exoskeletons. In this study, ten healthy right-handed participants were asked to perform six types of hand grasps representative of the activities of daily living while their neural activities were recorded using electroencephalography (EEG). From half of the participants, hand kinematic synergies were derived, and a neural decoder was developed, based on the correlation between hand synergies and corresponding cortical activity, using multivariate linear regression. Using the synergies and the neural decoder derived from the first half of the participants and only cortical activities from the remaining half of the participants, their hand kinematics were reconstructed with an average accuracy above 70%. Potential applications of synergy-based BMIs for controlling assistive devices in individuals with upper limb motor deficits, implications of the results in individuals with stroke and the limitations of the study were discussed.en_US
dc.description.sponsorshipThis research was funded by National Science Foundation (NSF) CAREER Award, grant number HCC-2053498 and NSF Planning IUCRC Award, grant number 2042203.en_US
dc.description.urihttps://www.mdpi.com/1424-8220/22/14/5349en_US
dc.format.extent16 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2pfip-jpz7
dc.identifier.citationPei, Dingyi, Parthan Olikkal, Tülay Adali, and Ramana Vinjamuri. 2022. "Reconstructing Synergy-Based Hand Grasp Kinematics from Electroencephalographic Signals" Sensors 22, no. 14: 5349. https://doi.org/10.3390/s22145349en_US
dc.identifier.urihttps://doi.org/10.3390/s22145349
dc.identifier.urihttp://hdl.handle.net/11603/28109
dc.language.isoen_USen_US
dc.publisherMDPIen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Student Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.en_US
dc.rightsAttribution 4.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/us/*
dc.titleReconstructing Synergy-Based Hand Grasp Kinematics from Electroencephalographic Signalsen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-7756-3678en_US
dcterms.creatorhttps://orcid.org/0000-0002-5513-1150en_US
dcterms.creatorhttps://orcid.org/0000-0003-0594-2796en_US
dcterms.creatorhttps://orcid.org/0000-0003-1650-5524en_US

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