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Article: Effect of motor tasks on the cortical topography of the human masseter muscle

TitleEffect of motor tasks on the cortical topography of the human masseter muscle
Authors
KeywordsElectromyography
Human
Masseter muscle
Motor control
Transcranial magnetic stimulation
Issue Date2000
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/archoralbio
Citation
Archives Of Oral Biology, 2000, v. 45 n. 9, p. 767-773 How to Cite?
AbstractNon-invasive magnetic stimulation of the brain was earlier used to reveal the corticomotor representation of the human masseter muscle but it is unclear how motor tasks affect this map. An experimental approach incorporating transcranial magnetic stimulation of verified locations on the scalp, surface electromyography, and controlled muscle facilitation was used to disclose the corticomotor output map of the masseter during three isometric tooth-contact tasks, viz., tooth clenching in the intercuspal position, biting on the left molar teeth, and biting on the incisors. Map area was significantly different for all tasks, and map height and volume were also different for biting on the incisor teeth (p < 0.05). There was evidence of task-related modulation of corticobulbar activity that appeared to be mainly of corticomotoneuronal origin, although the role of differential, task-associated peripheral afferent input from orofacial receptors could not be discounted. (C) 2000 Elsevier Science Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/65860
ISSN
2015 Impact Factor: 1.733
2015 SCImago Journal Rankings: 0.713
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWatson, Cen_HK
dc.contributor.authorWalshaw, Den_HK
dc.contributor.authorMcMillan, ASen_HK
dc.date.accessioned2010-09-06T05:41:36Z-
dc.date.available2010-09-06T05:41:36Z-
dc.date.issued2000en_HK
dc.identifier.citationArchives Of Oral Biology, 2000, v. 45 n. 9, p. 767-773en_HK
dc.identifier.issn0003-9969en_HK
dc.identifier.urihttp://hdl.handle.net/10722/65860-
dc.description.abstractNon-invasive magnetic stimulation of the brain was earlier used to reveal the corticomotor representation of the human masseter muscle but it is unclear how motor tasks affect this map. An experimental approach incorporating transcranial magnetic stimulation of verified locations on the scalp, surface electromyography, and controlled muscle facilitation was used to disclose the corticomotor output map of the masseter during three isometric tooth-contact tasks, viz., tooth clenching in the intercuspal position, biting on the left molar teeth, and biting on the incisors. Map area was significantly different for all tasks, and map height and volume were also different for biting on the incisor teeth (p < 0.05). There was evidence of task-related modulation of corticobulbar activity that appeared to be mainly of corticomotoneuronal origin, although the role of differential, task-associated peripheral afferent input from orofacial receptors could not be discounted. (C) 2000 Elsevier Science Ltd.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/archoralbioen_HK
dc.relation.ispartofArchives of Oral Biologyen_HK
dc.subjectElectromyographyen_HK
dc.subjectHumanen_HK
dc.subjectMasseter muscleen_HK
dc.subjectMotor controlen_HK
dc.subjectTranscranial magnetic stimulationen_HK
dc.titleEffect of motor tasks on the cortical topography of the human masseter muscleen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-9969&volume=45&spage=767&epage=773&date=2000&atitle=Effect+of+motor+tasks+on+the+cortical+topography+of+the+human+masseter+muscle.en_HK
dc.identifier.emailMcMillan, AS: annemcmillan@hku.hken_HK
dc.identifier.authorityMcMillan, AS=rp00014en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0003-9969(00)00051-0en_HK
dc.identifier.pmid10869490-
dc.identifier.scopuseid_2-s2.0-0033877318en_HK
dc.identifier.hkuros58732en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033877318&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume45en_HK
dc.identifier.issue9en_HK
dc.identifier.spage767en_HK
dc.identifier.epage773en_HK
dc.identifier.isiWOS:000088848200007-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWatson, C=7402884161en_HK
dc.identifier.scopusauthoridWalshaw, D=6701842829en_HK
dc.identifier.scopusauthoridMcMillan, AS=7102843317en_HK

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