Publication:
Facial muscle activity contaminates EEG signal at rest: evidence from frontalis and temporalis motor units

dc.contributor.departmentSchool of Medicine
dc.contributor.departmentGraduate School of Health Sciences
dc.contributor.kuauthorBudan, Abdullah Salih
dc.contributor.kuauthorTopkara, Betilay
dc.contributor.kuauthorTürker, Kemal Sıtkı
dc.contributor.kuauthorUngan, Pekcan
dc.contributor.kuauthorYılmaz, Gizem
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF HEALTH SCIENCES
dc.contributor.schoolcollegeinstituteSCHOOL OF MEDICINE
dc.date.accessioned2024-11-09T23:58:00Z
dc.date.issued2019
dc.description.abstractObjective: In order to reach electroencephalography (EEG) electrodes on the scalp, synchronized activity of neurons needs to pass thorough several tissue layers, including the skull and muscles covering the scalp. the contamination of EEG signal by temporalis and frontalis muscles has been well documented for voluntary muscle contraction even at low contraction levels. the extent of myogenic contamination during postural and/or rest activity of the temporalis and frontalis remains an impediment for EEG research. Approach: In this study, we first aimed to observe involuntary, continuous motor unit activity of the frontalis muscle at rest and evaluate motor unit level frontalis interference on the EEG electrodes. Second, we compared motor unit interference from the frontalis before and after artefact pruning via an independent component analysis (ICa) algorithm. Main Results: We demonstrated that motor unit activity of the frontalis muscle produces interference potentials on the frontal electrodes at rest and the interference was significantly reduced after ICa on the frontal electrodes, but not completely eliminated. Likewise, the temporalis interference at rest was significantly smaller after ICa on the fronto-temporal electrodes, but not completely removed. Significance: We documented the existence of resting involuntary activity of the temporalis and frontalis muscles underneath EEG electrodes and the removal of the EEG signal from their contiguous interference is not possible even after the use of ICa technology. We recommend that EEG researchers readdress the definition of 'rest' for EEG recordings and the ICa experts should extend their electromyography removal strategies to motor unit level interference.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.indexedbyPubMed
dc.description.issue6
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume16
dc.identifier.doi10.1088/1741-2552/ab3235
dc.identifier.eissn1741-2552
dc.identifier.issn1741-2560
dc.identifier.quartileQ2
dc.identifier.scopus2-s2.0-85074307617
dc.identifier.urihttps://doi.org/10.1088/1741-2552/ab3235
dc.identifier.urihttps://hdl.handle.net/20.500.14288/15369
dc.identifier.wos503795700003
dc.keywordsElectromyography
dc.keywordsElectroencephalography
dc.keywordsSingle motor unit
dc.keywordsCoherence
dc.language.isoeng
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Neural Engineering
dc.subjectEngineering
dc.subjectBiomedical engineering
dc.subjectNeurosciences
dc.titleFacial muscle activity contaminates EEG signal at rest: evidence from frontalis and temporalis motor units
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorYılmaz, Gizem
local.contributor.kuauthorBudan, Abdullah Salih
local.contributor.kuauthorUngan, Pekcan
local.contributor.kuauthorTopkara, Betilay
local.contributor.kuauthorTürker, Kemal Sıtkı
local.publication.orgunit1GRADUATE SCHOOL OF HEALTH SCIENCES
local.publication.orgunit1SCHOOL OF MEDICINE
local.publication.orgunit2School of Medicine
local.publication.orgunit2Graduate School of Health Sciences
relation.isOrgUnitOfPublicationd02929e1-2a70-44f0-ae17-7819f587bedd
relation.isOrgUnitOfPublication2f870f28-12c9-4b28-9465-b91a69c1d48c
relation.isOrgUnitOfPublication.latestForDiscoveryd02929e1-2a70-44f0-ae17-7819f587bedd
relation.isParentOrgUnitOfPublication4c75e0a5-ca7f-4443-bd78-1b473d4f6743
relation.isParentOrgUnitOfPublication17f2dc8e-6e54-4fa8-b5e0-d6415123a93e
relation.isParentOrgUnitOfPublication.latestForDiscovery4c75e0a5-ca7f-4443-bd78-1b473d4f6743

Files