Figure 2.

Modulation of MEPs during action observation. Mean MEP amplitudes recorded from the right opponens pollicis during the observation of the experimenter operating the normal and reverse tools, in both the goal and no-goal conditions. “Extend” and “flex” refer to the movements of the experimenter's thumb. Values from individual participants are represented as line–symbol, whereas mean values of the group are represented as gray columns. p values from the relevant post hoc comparisons are given.