A, Correlation coefficients between laterality index of intrahemispheric coherences and language-related cognitive performance. Note that a significant correlation was found in parietotemporal connectivity in theta-2 (r = 0.390, p < 0.0006). B, C, Correlation coefficients between intrahemispheric coherences and language-related cognitive performance in the left (B) or right (C) hemisphere. There were no significant correlations between intrahemispheric coherences and cognitive performance in either hemispheres (p ≥ 0.0006). *p < 0.0006.