Comparison of the dipole strengths.

(a) Response suppression. Dipole strengths of the responses to S1 (yellow) vs. S2 (bright green). N = 35 (subjects)×2 (sessions)×2 (conditions). (b) Dipole strengths of the S1 responses to S1 stimuli of 0 phase modulation vs. π. Dipole strengths of 0 phase (magenta) is significantly higher than those of π phase (cyan). N = 35 (subjects)×2 (sessions). (c) Dipole strengths of the S2 responses to S1 stimuli of 0 phase modulation vs. π. Only M100s of the left hemisphere were significantly different. N = 35 (subjects)×2 (sessions). (d) Dipole strengths of the S2 responses to stimuli in same pairs vs. different. In the right hemisphere, M50 and M100 in different conditions were significantly higher than those in the same condition. N = 35 (subjects)×2 (sessions). For all, the error bar indicates standard error of mean (SEM). All values are logarithmically transformed. N: number of independent data points. *: significant at the 0.05 level, **: significant at the 0.01 level, ***: significant at the 0.001 level, n.s.: not significant.