Fig. 3: Task related evoked activity and cortical source estimates.
A. Spatiotemporal-cluster analysis contrasting brain activity evoked by the presentation of identical audiovisual sequences but in two different tasks (causality - temporal order). Left: t-map of the significant cluster (white sensors, one sample two-sided t-test, p < 0.05 corrected for multiple comparison) ranging from 260 to 1250 ms post-sequence onset. Grey levels are t-values averaged across significant times. Right: Temporal extent of the effect averaged over significant sensors in the cluster (grey). The top and bottom panels represent the two polarities of a single source (positive left, negative right) B Left: root mean squared (RMS) activity in the cluster average across participants as a function of MCDCORR in causality judgment blocks. Right: same in temporal order judgment blocks (N = 13). C Single-trial logistic regression coefficients showed that MEG activity can predict single-trial behavioral responses in causality judgment blocks (blue, N = 13, logistic regression p < 0.05) but not in temporal order judgment blocks (red, N = 13, logistic regression p = 0.90) D Source estimations (semi-inflated brain, N = 13) locate the effect to the right posterior superior temporal sulcus (pSTS), the right SupraMarginal Gyrus (SMG) and bilateral superior parietal gyrus (SPG). Shaded areas and error bars represent 2 s.e.m. across participants.
