Figure 3. Sensitivity to statistical contexts in brain scalp data.

Spatio-temporal statistical analysis reveals significant effects over bilateral temporo-parietal areas (displayed at p<0.05, FWE whole-volume corrected) for (a) the main effect of surprise - deviance from the mean (odd vs. standard, MMN-like response) peaking at about 160, 190, and 310 ms and (b) the interaction, i.e., differences between MMNs under the low and high variance contexts, peaking at about 120 ms.