Linked Life Data

15351927

Source:http://linkedlifedata.com/resource/pubmed/id/15351927

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-9-27
pubmed:abstractText
Using the technique of transcranial magnetic stimulation (TMS) with a figure-of-eight-shaped coil in 16 normal volunteers, we studied the extents of motor evoked potentials (MEPs) induced by remote facilitation of voluntary teeth clenching (VTC) and by motor imagery (MI). In particular, we examined whether different excitability changes in the primary motor cortex (M1) induced by both facilitation methods occur between early (I1 and I2) and late (I3 and I4) components of I-waves elicited from a first dorsal interosseous (FDI) muscle. Both components of I-waves were induced by anterior-medially (AM) directed currents or posterior-laterally (PL) directed currents. Our hypothesis was that facilitatory effects of VTC and MI on M1 differ because the neural pathways of these afferent inputs differ. The present results indicate that during MI MEP amplitudes of late components are significantly larger than those of early ones, although both MEP amplitudes are enhanced. On the other hand, during VTC MEP amplitudes of early components are significantly enhanced, but those of late ones are rather depressed. We conclude that recruitment of early and late components of I-waves differ depending on the afferent inputs to the motor cortex.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
158
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
527-32
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Excitability changes in human hand motor area dependent on afferent inputs induced by different motor tasks.
pubmed:affiliation
Division of Sports and Health Sciences, Graduate School for International Development and Cooperation, Hiroshima University, 1-5-1 Kagamiyama, 739-8529 Higashihiroshima, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't