Fig. 2.

ROI analysis of activity for “logic” and “linguistic” regions. Error bars represent intersubject variability of the General Linear Model regression coefficients (β). The plus sign indicates a significant task (inference versus grammar) by materials (logic arguments versus linguistic arguments) interaction within the ROI. The asterisk highlights a significant simple effect of task. RLPFC, rostrolateral prefrontal cortex; IFG pt, inferior frontal gyrus pars triangularis; IFG po, inferior frontal gyrus pars opercularis; pSTG, posterior superior temporal gyrus; and mSFG, medial superior frontal gyrus.