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. 2018 Feb 28;13(2):e0193422. doi: 10.1371/journal.pone.0193422

Fig 6. ERSPs in the left precentral gyrus.

Fig 6

(A) T-maps of the differences in the ERSPs between the tDCS and sham conditions. The threshold of p < 0.05 (FDR corrected) is highlighted with a red rectangle. The color indicates the t-values at each time-frequency point. Significantly higher ERSPs were observed in the beta-band (20 Hz; a red rectangle) after tDCS than after the sham condition. (B) The grand average of the time-frequency maps of ERSPs in the left precentral gyrus under both tDCS (upper row) and sham (lower row) conditions. In each map, the x-axis indicates time (ms), and the y-axis indicates frequency (Hz). The color indicates ERSPs at each time-frequency point (reflected as the percentage change from baseline).