AGE FEATURES OF HEMISPHERIC ASYMMETRY OF CEREBRAL BLOOD FLOW IN CHILDREN WITH ATTENTION DEFICIT HYPERACTIVITY DISORDER

Abstract

The article presents the features of asymmetry of cerebral blood flow determined with use of rheoencephalography of 97 boys aged 7-10 years and 56 boys aged 11-14 years with the attention deficit hyperactivity disorder. It has been found that in primary school the children showed reduction in blood filling intensity and improvement of elastic properties of blood vessels for distribution and resistance in the carotid region, increased elastic properties of blood vessels in the vertebrobasilar area on the left. Obviously, these changes in the cerebral blood flow reflected the specific characteristics of the cerebral blood flow in children with this disorder. For children at secondary school age, there is registered an increase of the blood flow intensity, the tone of large arteries and elastic properties of blood vessels for distribution and resistance in carotid and vertebrobasilar area on the left, which corresponds to the existing ideas about organization of hemodynamic processes in the brain and the role of the left-hemispheric dominance in children in ontogenesis.