Extended data figure 2. Neural code for syllables for each ROI in the left hemisphere.
a. Contrasting syllables per ROIs within each speech network indicate time points with significant syllable discrimination around the speech utterance. Plots show mean ΔHG contrasts of VCV versus CVC for each ROI aligned to the response onset. Shaded area denotes standard error. Horizontal bars indicate durations of significant contrasts (across vs. within syllables, one-sided permutation test with cluster correction, cluster forming threshold p<0.05, 1000 permutations). b. Histograms indicate electrode distributions of peak ΔHG contrasts per ROI. Significant differences in peak ΔHG were found (one-way ANOVA, F8,489 = 18.1, p < 0.001, two-sided). These differences followed a general temporal progression of syllable activations, around the utterance.