Figure 2.

Spatio-spectral saliency maps for the 7 vs. 11 year old (top left), 8 vs. 11 year old (top right), 9 vs. 11 year old (bottom left) and 10 vs. 11 year old (bottom right) mass univariate analyses using a t_max Monte Carlo method (with 1000 random between-subject data permutations). The dependent variable of interest is absolute spectral density. Regions outlined in black highlight the electrodes and frequencies that reached statistical significance using a permutation-controlled familywise alpha level of 0.05. Hot colors denote increased power in the comparison groups relative to the 11 year olds while cool colors indicate the opposite. Note that the electrodes are arranged in order from the most anterior (top portion of the y-axis) to the most posterior (bottom portion of the y-axis); because of space constraints, not all electrode labels are shown.