Fig. 1From: Inattentive and hyperactive preschool-age boys have lower sympathetic and higher parasympathetic activityComparison of SNAP-IV scores of boys and girls. Analysis of the data was by Student’s t test. SNAP-IV Swanson, Nolan and Pelham rating scale-IV, ODD oppositional defiant disorder, ADHD attention-deficit and hyperactivity disorder; *p < 0.05 versus girlsBack to article page