ADHD gene expression heatmap based on GTEX v7 RNA-seq data for 48 genes (18 PASCAL associated genes plus 30 interactor genes) has revealed higher relative expression levels across several brain tissues for the following genes: ELOVL2, CCNA1, FEZF1, FEZF1-AS1, CDH8 and SORCS3. Conversely, the vast majority of the remaining genes, including those associated on chromosome 1, have shown relative lower expression levels in brain tissues from GTEX (Fig. 5). Here, ELOVL2 is linked to attention deficit-hyperactivity disorder.