[Cognitive aspects of attention deficit hyperactivity disorder in children]

Inattention, excessive motor activity and impulsivity observed in children with attention deficit hyperactivity disorder (ADHD) are presently considered as an executive function deficit. Certain authors suggest that children with ADHD, combined and inattentive types, present distinct attention disorders. Cognitive aspects in ADHD children are measured with an intellectual functioning scale, cognitive and executive function tests. Experimental data show mixed results concerning these subjects. Similar deficits are found between ADHD children, combined and inattentive types, on motor inhibition and different cognitive aspects. However, other executive function aspects need to be explored among the two ADHD sub-groups.