Mean (± SE) values of the EMG (rectified) signal, expressed as percentage of the baseline, recorded from the FDI (on the left) and ECR (on the right) muscles during the execution of deceptive (black dots), truthful (white dots), and deceived (gray dots) actions. Values are reported separately for the light and heavy objects as a function of the bins preceding (reaching phase, upper panel) or following (lifting phase, lower panel) the contact with the object. Asterisks indicate significant differences between the 3 action types at each bin (P < 0.05).