The problem of late development of speech activity in young children without severe mental pathology is becoming more and more relevant every year (Baranov A.A., 2012; Larkina E.V. et al., 2013; Makushkin E.V., 2013; Asmolova G. A. et al., 2014; Borovtsova L.A. et al., 2015). The lag in a child’s speech development from the age norm is observed mainly in the early stages of the formation of mental activity (Shemyakina O.V., 2012). Disorders that arise in childhood do not disappear without a trace, but can worsen over time (Kuprianova I.E. et al., 2012; Clegg J. et al., 2005; Miniscalco C., et al., 2006; Bayer J.K. et al. ., 2008; Durkin, K., 2010). The role of the visual analyzer in the mental development of a child is great and unique. Violation of its function causes the child significant difficulties in understanding the surrounding reality, narrows social contacts, limits spatial orientation and the ability to engage in many types of activities [4]. An analysis of special psychological and pedagogical literature has shown that the peculiarities of the development of visual perception, insufficient development of motor and visual-motor coordination delay the process of mastering objective actions by a child with visual impairments and negatively affect the process of forming their ideas about objects in the surrounding world. The operational, functional and motivational aspects of object concepts in these children are not sufficiently developed, and without special work the formation of this mental process is extended over time. The nature of the dysfunction of the central nervous system in children with delayed speech development affects the characteristics of the generation of visual evoked potentials (VEPs). The configurations of early and late VEP components differ significantly in children with speech delay and healthy children. With delayed speech development of various origins, the amplitude of the negative VEP component is reduced in the frontal, temporal and occipital regions of both hemispheres of the brain compared to the control. It has been established that a decrease in the amplitude of positive VEP components is associated with impaired attention function.