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. Author manuscript; available in PMC: 2013 Jan 5.
Published in final edited form as: Clin Neurophysiol. 2011 Apr 23;122(11):2254–2259. doi: 10.1016/j.clinph.2011.02.038

Fig 1a.

Fig 1a

Schematic of the experimental set-up, a subthreshold, single pulse of TMS over the leg motor cortex, conditions segmentally the H-reflex, from a single supra-threshold PNS over the tibial nerve in the popliteal fossa. We proposed that this temporal association applied repetitively would leads to a Hebbian-like modulation of the spinal excitability.