Fig. 5

Spatio-temporal cluster-based permutation statistics of MMN across groups and SOA. Nonparametric cluster-based statistics across channels and time, with contrasts between Standard and Deviant tone amplitude differences. Significant clusters are plotted and demarcated by color saturation mask where only significant t-values are shown (p < 0.05, Monte Carlo cluster-corrected, N perm = 2000). The direction of these effects is color-coded, red denotes a positive and blue denotes a negative MMN effect. Time is plotted along the x-axis and electrode position is plotted on the y-axis. Starting from the top left corner of each graph, electrodes that are located next to each other are clustered into color-coded scalp regions (Antero-Frontal, Frontal, Central, and Parietal). These color-coded regions are displayed on the corresponding head cartoon map (top)