Figure 2
From: A framework to assess the impact of number of trials on the amplitude of motor evoked potentials

Validation with experimental data from Experiment 1. (A) Schematic experimental set up using TMS on the primary motor cortex inducing MEPs in the contralateral FDI muscle. A representative example of a recorded MEP is shown. (B) Peak-to-peak MEP amplitudes (mV) from one representative subject showing all 100 trials. (C) Experimental application of Eq. (5). (D) Average peak-to-peak MEP amplitude (\({\mu }_{trials}\)) and average standard deviation (\({\sigma }_{trials}\)) from all subjects (\(N\)= 20) are represented. (E) Experimental application of Eq. (9). (C,E) For a 95% c.i., \({\alpha }\)= 0.05 and \({z}_{1-{\alpha }/2}\)= 1.96.