The results suggest that consumption of certain mixtures of artificial food colours and sodium benzoate preservative are associated with increases in hyperactive behaviour in children.
Ironically considering their otherwise hyperactive behavior, the main hunting techniques of crowned eagle require long periods of inactivity, spent sitting on a perch.
Mutant of presenilin-1 that reduces the ability to stable beta-catenin complex will lead to hyperactive degradation of beta-catenin in the brains of transgenic mice.
They have been used to define clinical subtypes (hypoactive, hyperactive, mixed) though studies are inconsistent as to the prevalence of these subtypes.
