Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/9666
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dc.contributor.authorArcher, John Sen
dc.contributor.authorAbbott, David Fen
dc.contributor.authorJackson, Graeme Den
dc.date.accessioned2015-05-15T22:50:43Z
dc.date.available2015-05-15T22:50:43Z
dc.date.issued2004-01-01en
dc.identifier.citationJournal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia; 11(1): 46-52en
dc.identifier.govdoc14642365en
dc.identifier.otherPUBMEDen
dc.identifier.urihttps://ahro.austin.org.au/austinjspui/handle/1/9666en
dc.description.abstractIpsilateral sensory motor cortex (SMC) activation can occur during hand movements following cerebral injury. We studied the effect of increasing task difficulty and temporary peripheral paralysis on patterns of motor system activation.Six healthy subjects completed a functional MRI paradigm of right finger abduction with four stages; light resistance, strong resistance, imagined movement and attempted abduction after ulnar nerve blockade. Activation maps compared images acquired during rest and task, while region of interest analysis measured numbers of activated pixels.All subjects showed some ipsilateral SMC activation. Across all subjects and all tasks involving hand movement, contralateral activation was proportional to ipsilateral activation (2.1:1; r=0.86).The relationship between ipsilateral and contralateral SMC activation remained stable despite differing effort or hand paralysis. The contralateral and ipsilateral SMC appear to act in a coordinated fashion during unilateral hand movements.en
dc.language.isoenen
dc.subject.otherAdulten
dc.subject.otherBrain Mappingen
dc.subject.otherFemaleen
dc.subject.otherFingers.innervationen
dc.subject.otherFunctional Laterality.physiologyen
dc.subject.otherHumansen
dc.subject.otherImage Processing, Computer-Assisteden
dc.subject.otherMagnetic Resonance Imaging.methodsen
dc.subject.otherMaleen
dc.subject.otherMotor Cortex.blood supply.physiologyen
dc.subject.otherNerve Block.methodsen
dc.subject.otherOxygen.blooden
dc.subject.otherPeripheral Nerves.drug effects.physiologyen
dc.subject.otherPhysical Exertion.physiologyen
dc.subject.otherSomatosensory Cortex.blood supply.physiologyen
dc.titleStable ratio of ipsilateral to contralateral sensory motor cortex activity despite varying effort and peripheral nerve block.en
dc.typeJournal Articleen
dc.identifier.journaltitleJournal of Clinical Neuroscienceen
dc.identifier.affiliationBrain Research Institute, Austin and Repatriation Medical Centre, Banksia Street, Vic. 3081, Heidelberg West, Australiaen
dc.description.pages46-52en
dc.relation.urlhttps://pubmed.ncbi.nlm.nih.gov/14642365en
dc.type.austinJournal Articleen
local.name.researcherAbbott, David F
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairetypeJournal Article-
crisitem.author.deptEpilepsy Research Centre-
crisitem.author.deptThe Florey Institute of Neuroscience and Mental Health-
crisitem.author.deptNeurology-
crisitem.author.deptThe Florey Institute of Neuroscience and Mental Health-
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