title: Muller-Lyer illusion in hyperactive boys.
mesh_terms: D000367:Age Factors; D002648:Child; D002657:Child Development; D006801:Humans; D006948:Hyperkinesis / Q000188:drug therapy / Q000503:physiopathology*; D007088:Illusions / Q000502:physiology*; D007175:Impulsive Behavior; D008297:Male; D008774:Methylphenidate / Q000627:therapeutic use; D009903:Optical Illusions / Q000502:physiology*
chemical_list: D008774:Methylphenidate