MYH6 and attention deficit-hyperactivity disorder: Similar findings have emerged from a sequencing study of ADHD, which highlighted strong overlap in the genes implicated in ADHD and ASD3, whereas GWAS demonstrate a moderate (rg = 0.36) genetic correlation between ADHD and ASD28, and a previous CNV study suggested that the same biological pathways are impacted by CNVs in ADHD and ASD29.