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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Mov Disord. 2011 May;26(6):958–967. doi: 10.1002/mds.23572

Figure 3.

Figure 3

Effect of paired associative stimulation (PAS) on the size of motor evoked potentials (MEPs) of the right APB and FDI muscle in 10 healthy controls (A) and 10 patients with writer’s cramp (B). The bar charts illustrate the mean peak-to-peak amplitude (mV) of MEPs recorded at rest before (open columns) and after (shaded columns) associative stimulation. Each error bar equals SEM. PAS led to an increase in MEP size in patients and controls. However, the facilitatory effect was significantly stronger in patients. Modified from Quartarone et al. 200338 with permission.