[Clinical and psychophysiological manifestations of dyscalculia in children].

The article presents an overview of scientific publications devoted to the study of dyscalculia. Present-day data on the prevalence of this pathology, the features of the clinical picture, and theories of neurocognitive deficit underlying the disorder in the processing of numerical information are presented. The results of neurophysiological and neuroimaging studies devoted to the study of the features of the functional activity of various brain structures in dyscalculia are considered.