Figure 3.

The grand averaged (n = 15) event-related spectral perturbations output at each time can be seen. A, Baseline. B, Immediate posttest. C, 1-week posttest. ^a γ Band (30–50 Hz). ^b β Band (14–25 Hz). ^c α Band (8–12 Hz). ^d θ Band (4–8 Hz). More blue colors indicate a decrease in signal power, and therefore an increase in activity in frequencies less than 30 Hz. Yellow to red colors indicate a decrease in activity in frequencies less than 30 Hz. Increased activity in the γ band (30–50 Hz) is indicated by more yellow and red colors, whereas decreased activity in the γ band is indicated by more green and blue colors.