Toward a clinical subgrouping of hyperactive and nonhyperactive attention deficit disorder. Results of a comprehensive neurological and neuropsychological assessment
Y. Frank and Y. Ben-Nun
Unit of Child Neurology, Meir General Hospital, Tel Aviv (Israel) University.
We studied 32 boys with attention deficit disorder (ADD)--21 with
hyperactivity, and 11 without hyperactivity. The ADD group with
hyperactivity had significantly more neurological and cognitive
abnormalities and a higher frequency of prenatal and neonatal
abnormalities. It seems that hyperactivity is an important determinant of
the degree of neurological and cognitive involvement in children with ADD.
It also seems that a cause of "early" brain insult is more likely when
hyperactivity is present.
