Figure 4.

Time-frequency response during resting state (before and after stimulation) and during speech presentation at channel T8

The speech condition corresponds to the average of the three languages (French, Spanish, and English). The time-frequency maps illustrate the mean spectral amplitude per condition. Each frequency band (delta, theta, beta, and low-gamma) is plotted separately, with a different scale, as indicated by the color bars to the right of the time-frequency maps. The black boxes indicate significant differences between initial rest and speech, while magenta boxes indicate significant differences between the two resting state conditions. Boxes with solid lines indicate higher activation, boxes with dashed lines lower activation. See also Figures S5 and S7.