Fig. 4. (a) Scalp map distribution of the ERPs occurring 100 ms after the onset of the letter presentation (for the 3 conditions averaged). (b) P100 amplitude component (in μV) as a
function of the Type of Letter presented (Self-handwritten, Non-self handwritten and Printed) and the Period of presentation (~20 Hz oscillations Suppression in black and ~20 Hz
oscillations Rebound in grey). Each participant score was normalized by subtracting the participant's deviation score from the original score (for more details see Loftus and Masson,
1994). Error bars represent the 95% confidence intervals. (*) and (**) indicate that planned comparison is respectively statistically significant at Pb0.05 and Pb0.01.