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. 2022 Jan 10;13:48. doi: 10.1038/s41467-021-27725-3

Fig. 6. Discriminability between different representations using phase-amplitude CFC changes for overt and imagined speech.

Fig. 6

a Significant Fisher distances between articulatory (purple), phonetic (blue), and vocalic (green) representations in different brain regions and frequency bands (permutation tests, FDR-corrected, target threshold α = 0.05). b Distributions of significant Fisher distance for each brain region and left (blue) and right (orange) hemispheres across all representations and frequency bands (permutation tests, FDR-corrected, target threshold α = 0.05). c Maximum significant Fisher distance for each electrode across all representations and frequency bands. When several significant Fisher distances exist for the same electrode, the maximum value is shown. Only significant electrodes are shown (permutation test, p < 0.05, no FDR correction). Left column: overt speech. Right column: imagined speech. Results are pooled across all studies, results for separated studies as shown in Supplementary Fig. 19. Source data are provided as a Source Data file. lβ low beta, lγ low gamma, BHA broadband high-frequency activity.