(a) Heat map depicting the results of a significant cluster test, based on Spearman’s correlation coefficients between average individual evoked brain activity and AV timing precision estimates. Positive correlations (yellow) indicate that evoked activity is positively correlated with AV timing precision. Data are from trials involving −300 ms (vision lead) stimulations. Sensors contributing to the significant clusters are indicated by red crosses. In the adjacent plot, data are split-half averaged according to timing precision (red for precise judges, blue imprecise). These data are averaged across significant cluster channels (shown in the heat map). The temporal limits of the significant cluster are indicated by the black vertical bars. (b) Details are as for (a), but data are from trials involving −100 ms (vision lead) stimulations. (c) Details are as for (a), but data are from trials involving −50 ms (vision lead) stimulations. (d) Details are as for (a), but data are from trials involving +50 ms (audio lead) stimulations, and the significant cluster describes a negative correlation.