Fig. 5.

Robust regression analysis with self-reported difficulty for detecting stimulus changes predicting the strength of deviance-driven modulation of effective connectivity. Left panel A, participants with enhanced modulation of the backwards MFG to AIC connection by surprising touch stimuli reported easier discrimination of stimulus changes. Data points depict individual participants; points shaded grey indicate those receiving down weights > 2 SD from the mean weighting (leverage points). These results suggest that top-down prefrontal to AIC connectivity underlies awareness of unexpected tactile changes. Right panel B depicts results of robust regressions (Tukey's biweight) over 20 extrinsic connection modulation parameters each predicting subjective detection difficulty, P_FDR threshold < 0.05.