We used genotype and RNA-seq data from 139 human postmortem brain samples of the superior frontal gyrus (Brodmann area 8) that were previously reported [31]. PSI of the modeled events were quantified using rMATS with Gencode annotation (GRCh37.p13, hg19). To compare the analysis from this cohort with CMC, the same standards were imposed. Skipped exons that have: (i) all marker variants available in the genotypes of the PFC samples; (ii) more than 100 samples with ≥10 junction reads; and (iii) PSI with IQR > 0.1, were compared.