Abstract
Training of skilled movements leads to typical changes in motor evoked potentials (MEPs). To see how such changes are related to motor performance and hand preference, a goal-directed movement task was implemented on a haptic interface. Both hands of right-handed subjects were trained separately in two sessions. Transcranial magnetic stimulation (TMS) was applied contralaterally to the trained hand before and after each session. Effects of right hand training: after session #1 MEP-facilitation was 60 %, intracortical inhibition (ICI) and facilitation (ICF) were reduced and task improvement was 37%. Left hand training: after session #1 MEP-facilitation was +59%, ICI and ICF remained unchanged and task improvement was +30%. During session #2 all variables for both sides remained constant. The different time course of the training-induced effects for the left and right hemisphere obviously reflects functional side differences in hand motor control.
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© 2009 Springer-Verlag Berlin Heidelberg
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Rafolt, D., Christova, M., Krenn, M., Gallasch, E. (2009). Transcranial Magnetic Stimulation to Elicit Changes in Motor Cortex Excitability during Haptic Training. In: Vlad, S., Ciupa, R.V., Nicu, A.I. (eds) International Conference on Advancements of Medicine and Health Care through Technology. IFMBE Proceedings, vol 26. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04292-8_36
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DOI: https://doi.org/10.1007/978-3-642-04292-8_36
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04291-1
Online ISBN: 978-3-642-04292-8
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