Figure 4.

Connectivity effects. Time-frequency plots of different electrode pairs reflect changes in PLV between pain and no-pain trials. Topo-plots represent the locations of the plotted electrode pairs. Red represents an increase in connectivity. Blue represents a decrease. The matching category is indicated on the bottom right of each topo-plot. Depicted are visualizations of PLV differences from seed electrodes. a, PLV differences in the theta-band (4–7 Hz) and prestimulus time window (−0.8 to 0 s). b, PLV differences in the theta-band (4–7 Hz) and poststimulus time window (0–0.4 s). c, PLV differences in the gamma-band (28–32 Hz) for the prestimulus time window (−0.8 to 0 s). Time-frequency points within the solid lines are significant at p < 0.05 (cluster corrected).