Figure 3
From: Effects of methylphenidate on motor system excitability in a response inhibition task
Relative MEP amplitudes in control, go and nogo conditions. Relative MEP amplitudes ± SE in control (top), go (middle) and nogo conditions (bottom). The interval between the S2 stimulus and the TMS pulse in milliseconds is plotted against the x-axis ("latency"), the y-axis describes the resulting amplitude as percentage of the mean values of the respective control condition. Black: placebo, blue: MPH; filled squares: single-pulse responses, open squares: double-pulse responses (ISI 3 ms).