Abstract
We investigated steady-state movement-related cortical potentials elicited by fast repetitive movements (1/sec@rpar; with 50-channel EEG. The experimental design comprised a comparison @lpar;a@rpar; between unilateral movements of the digits and the toes and (b) between metronome-paced and self-paced initiation of the movements. A distinct biphasic pattern of electrical activity following movement onset was observed, namely a frontal negative peak at a latency of 90 ms (post-MP100) and a frontal positive peak at a latency of 310 ms )post-MP300(. Pacing exerted its effects mainly on the amplitude and on the latency of the post-MP300. Source analysis revealed that both peaks could be modelled by a single source. The source locations were highly reproducible across the metronome-paced and self-paced conditions, and, they followed the expected somatotopic organisation.
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Kopp, B., Kunkel, A., Müller, G. et al. Steady-State Movement-Related Potentials Evoked by Fast Repetitive Movements. Brain Topogr 13, 21–28 (2000). https://doi.org/10.1023/A:1007830118227
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DOI: https://doi.org/10.1023/A:1007830118227