Asymmetric facilitation from repeated paired magnetic stimulation of human motor cortex

Geoff Hammond, Nicholas Gillooly

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Repeated stimulation of human motor cortex with pairs of magnetic pulses separated by 1.5 ms has been shown to increase the amplitude of the motor-evoked potentials in activated muscles, indicating a short-term plastic increase of corticospinal excitability. We show here that this increase is greater in the dominant than the nondominant motor cortex of right-handed participants. This finding is a direct demonstration that the potential for plastic synaptic change is greater in the dominant than the nondominant motor cortex and implies that a greater potential for reorganization within the dominant motor cortex is a mechanism of the greater dexterity of the dominant hand.
Original languageEnglish
Pages (from-to)479-482
JournalNeuroReport
Volume19
Issue number4
DOIs
Publication statusPublished - 2008

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