Anatomical localization of the preferential sites in the main nine hubs of the math network, combining the simultaneous and sequential calculation tasks. The individual electrodes in the brain are plotted in standard MNI coordinates, while in the scatterplots they are from the individual's anatomical space. The scatterplots show the correlation between the t scores comparing math versus non-math and the particular coordinate within each hub that best segregates between math and non-math preference in the native individual anatomical space. The correlation significance was FDR corrected for multiple comparisons, considering the 36 comparisons (9 regions × 4 coordinate axes, left/right, medial/lateral, posterior/anterior, and inferior/superior). This anatomical relationship may not be as clear once individual subject's data are transferred to standard MNI space. FG, fusiform gyrus; ITG, inferior temporal gyrus; SMG, supramarginal gyrus; IPS, inferior parietal sulcus; SPL, superior parietal lobe; IFG, inferior frontal gyrus; SFG, superior frontal gyrus; MFG, middle frontal gyrus; mSFG, medial superior frontal gyrus. See Extended Data Figures 1-4, 1-5, and 1-6.