“…Early studies argued that the attentional control mechanism, the linkage between sensory discrimination and intelligence, 57 corresponds to the volumes in brain regions such as lateral fronto-parietal cortex 58 (includes BAs 6, 8, 9), dorsal anterior cingulate 58,59 (includes BA 32), and lateral posterior cerebellum. 58 As summarized in Table 3 of the supplementary materials, recent structural MRI-based predictive methods 55,[60][61][62][63][64][65][66][67][68][69][70] that used brain regional volumes found that the fronto-parietal (includes BAs 6, 8, and 9), cingulo opercular (includes BAs 22, 41, and 42), visual (includes BAs 17, 18, and 19), somatosensory (includes BAs 1, 2, 3, 5, and 7), right posterior cingulate gyrus (BAs 23, 31), left caudate nucleus, entorhinal white matter (BA 28), globus pallidus, precentral gyrus (BA 4), corpus callosum, left/right hippocampus, parahippocampal gyrus (BA 34), thalamus, precentral gyrus (BA 4), caudate nucleus, pons, and motor (includes BAs 4 and 6) cortex areas are related to the fluid intelligence in adolescents. This study predicted the residual fluid intelligence score of more than 3500 adolescents with a mean square error (MSE) ranging from 92 to 101 (for a range of true residual fluid intelligence score of [-40, 30]), 55,[60][61][62][63][64][65][66][67][68][69] or a correlation of 10% (p <0.05), 70 which further strengthens the arguments from the previous studies 58,71,72 as well as the P-FIT theory.…”