Taken together, our findings suggest that specifically three out of four repetitive behaviours, which we observed as significantly present in the Sapap3−/− mouse model, responded to a pharmacological treatment, which has proven success in treating tic-like movements both in Tourette syndrome in humans as well as in corresponding rodent models [56, 57, 69–72, 77]. The gene discussed is DLGAP3; the disease is Tourette syndrome.