The effects of CC size on language lateralization. The sagittal section shown in the middle is from one individual brain normalized onto our symmetric template. The two regions showing a positive effect of CC size on left > right language lateralization are overlaid in white (p = 0.001 uncorrected for multiple comparisons/minimum cluster size = 30 voxels, each cluster containing a peak significant at p < 0.05 FWE corrected for multiple comparisons). Panels to the left and to the right give details of unilateral CC effects during each condition in each of these regions (bar graphs with 90% confidence intervals). CE, Contrast estimate; SP, semantic decisions on pictures; SW, semantic decisions on words; NP, naming pictures of objects; NW, naming written object name.