Introduction: Deficiency in the visual motion perception is the subject proposed associated with malfunctions such as attention deficit or hyperactivity disorder. The aim of this study was to evaluate the performance of children with attention deficit or hyperactivity disorder and healthy children in visual motion perception tasks.
Methodology: This was a description of the causal-comparative study. The sample consisted of 25 children with attention deficit or hyperactivity disorder and 25 healthy children were selected with accessible method. The main tests used included biological motion perception and point light tests of the visual perception tests and digits spam test of the Wechsler Intelligence Scale to identify the working memory. The multivariate analysis way of variance and independent t-test were used to examine the differences between the two groups and correlated variables.
Results: There was different performance in two groups of children with and without attention deficit in the biological motion perception and point light tests only in noisy conditions with consistency of 50%. Results of the different performances in noisy conditions in both groups showed that there was no significant differences in point light and biological motion perception tests in noisy conditions in children group with hyperactivity disorder or attention deficit. (Respectively: F=1.43 (p=0.24), F=2.18 (p=0.12)).
Discussion: Being functional differences in children with attention deficit or hyperactivity disorder in visual-motion perception in complicated noisy environments showed that the ability to process in these categories of people is along with weakness points.