PMID: 9528023Apr 7, 1998Paper

Cortical variations of the dimension of correlation in children with attention deficit hyperactivity syndrome

Revista de neurologia
J R ValdizánM A Idiazábal

Abstract

The syndrome of deficient attention and hyperactivity affects approximately 5% of children of school age. Clinically it is characterized by deficient attention, impulsiveness and excessive motor activity. Developments in nonlinear dynamic theory have made it possible to think of modelling cerebral activity as a dynamic system of chaotic type. One the most widely standardized measurements is the dimension of correlation (D2). In this paper we study the electroencephalographic traces of a control group of 9 healthy children and another group of 19 children with the syndrome of deficient attention, at rest and whilst carrying out a visuomotor task (Test of perception of differences). The dimension of correlation was estimated for both groups. Statistical comparison was made between the cortical distributions of the D2 between both types of recordings and between both groups. The children with lack of attention showed a larger number of activated cortical areas than those of the control group when carrying out the same task. However, during the resting state there were no differences in the D2 between the control children and the children with deficient attention. The indicates that both groups have the same basal level of activati...Continue Reading

Related Concepts

Related Feeds

Attention Disorders

Attention is involved in all cognitive activities, and attention disorders are reported in patients with various neurological diseases. Here are the latest discoveries pertaining to attention disorders.

Related Papers

Revista de neurologia
M Idiazábal AlechaJ M Espadaler-Gamissans
Medicine and Science in Sports and Exercise
Tsung-Min HungBradley D Hatfield
The World Journal of Biological Psychiatry : the Official Journal of the World Federation of Societies of Biological Psychiatry
Augusto Pasini, Elisa D'agati
© 2022 Meta ULC. All rights reserved