Figure 5.

(A) HFB changes during correct (solid) and incorrect (dashed) answers (i.e., the last digit c) averaged for subject S4, from the same site as in Figure 4 combining numbers and number words. Dots indicate that the HFB changes were significantly larger during incorrect answers (by a t-test dark gray dots = P < 0.05 uncorrected, light gray dots = P < 0.05 corrected for all time points tested by Bonferroni correction). (B) HFB changes during calculation averaged across the 2 subjects (S4 and S9), combining numbers and number words. Only correct answers are shown for the last digit c. Significant increases were noted during the second and third numeral (b and c) compared with the first numeral (a). The shaded area indicates ±1 standard error.