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Hemispheric Asymmetry and Somatotopy of Short-Latency Cutaneomotor Inhibition in Healthy Humans

T Bäumer, R Helmich, HR Siebner, AM Münchau · Klinische Neurophysiologie · 2004 · Heft 08

Dokument
1131885
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Jahr
2004
Publikation
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Metadaten
DOI
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Bibliografische Angaben

Zeitschrift
Klinische Neurophysiologie
Autor:innen
T Bäumer, R Helmich, HR Siebner, AM Münchau
Ausgabe
Heft 08 / 2004
Seiten
–
Erschienen: 2004-08-25 00:00:00
ISSN
1434-0275
DOI
10.1055/s-2004-831928

Zusammenfassung

A conditioning electrical stimulus to a digital nerve can inhibit the motor response in adjacent hand muscles elicited by a supra-motor threshold transcranial magnetic stimulation (TMS) test stimulus to the contralateral primary motor cortex (M1) hand area when given 25 to 50 ms before the TMS pulse. Such sensorimotor inhibition is referred to as short-latency afferent inhibition (SAI). There is good evidence that SAI is mediated through sensory-motor interaction at a cortical level. In right-handed healthy volunteers, we studied inter-hemispheric differences and within-limb somatotopy of SAI in two experiments.…

Schlagworte

Muscles Experiment Right Electrical Stimulation Conditioning Index Finger Inhibition Stimulus Motor Ipsilateral Klinische Neurophysiologie