Two methods provided evidence for certain neurons to be implicated in cross-disorders (eight psychiatric disorders jointly studied) [5]. A deeper cellular determination was not possible due to low sequencing depth. The same neuronal cells were also associated with educational attainment along with certain interneurons according to two methods. Additionally, these neurons were associated with intelligence. We also found evidence by two methods that implicated genomic loci of cognitive performance specifically mapped to certain neuroblasts. Suggestive findings are reported in the Supplementary Results.