Bonferroni post hoc correction showed Per3 expression at ZT4 to be significant higher in the healthy controls incubated with 1 μM NE compared to the participants of the HC group without NE incubation (p = 0.050) as well as between healthy controls incubated with 1 μM NE and ADHD cultures without NE incubation (p = 0.030). The gene discussed is PER3; the disease is attention deficit-hyperactivity disorder.