Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex.

Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex. Research Abstract Details 

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Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex. Abstract Text:

Geoff Hammond,Deb Faulkner,Michelle Byrnes,Frank Mastaglia,Gary Thickbroom,

The efficacy of inhibitory and excitatory intracortical circuits acting on the representation of an intrinsic hand muscle in the primary motor cortex of both hemispheres was measured with paired transcranial magnetic stimuli in right-handed subjects. Both intracortical inhibition (measured with an interstimulus interval of 3 ms) and intracortical facilitation (measured with an interstimulus interval of 16 ms) developed more rapidly with increasing conditioning stimulus intensity in the dominant than the non-dominant hand. We conclude that the intracortical circuits in the primary motor cortex are more potent in the dominant than the non-dominant hemisphere, and hypothesize that this difference is a factor in the asymmetrical dexterity associated with hand preference.

Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex. Publishing Authors By Initials

G Hammond,D Faulkner,M Byrnes,F Mastaglia,G Thickbroom,

For similar nervous system: nerve net research abstracts see: nervous system: nerve net research

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Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 155

Page Numbers: 19-23

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ISSN: 0014-4819

DAY: 8

MONTH: 11

YEAR: 2003

Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex. Information

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LANGUAGE: eng

NlmUniqueID: 43312

Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex. Keywords Mesh Terms:

KEYWORDS: Nerve Net

MESH TERMS: physiology

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Grant and Affiliation Information for Transcranial magnetic stimulation reveals asymmetrical efficacy of intracortical circuits in primary motor cortex.

AFFILIATION: School of Psychology, The University of Western Australia, Crawley, WA 6009, Australia. geoff@psy.uwa.edu.au

Country: Germany

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MEDLINETA: Exp Brain Res

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