Covert Intention to Answer to Self-Referential Questions Is Represented in Alpha-Band Local and Interregional Neural Synchronies

Figure 3

(a) Time-frequency representations of the variation of “yes-no” power difference according to response condition and its topographical distribution (red dot: selected five electrodes). (b) Significant variation of “yes-no” power difference according to response condition (, corrected by cluster-based permutation test). Black contour denotes the time-frequency cluster showing significant difference. (c) Post hoc pairwise comparisons of the mean power within the significant cluster between “yes” and “no” for each condition (: , n.s.: nonsignificant, by paired-sample t-test with Bonferroni correction).