Delay mentally razvytyyav the Scientific context of research

In the article the analysis of scientific approaches to determining the categories and characteristics of children with CRA, stated fact reversibility of the phenomenon, the group singled out each of the categories, the factors ascertained the origin of mental retardation, common and different between each group deviations. There has analysis dvostoronnosti mental retardation: the phenomenon of "Border" forms dyzontoheneza, which is reflected in the slow pace of maturation of various mental functions and fact slow pace mental development, which often appears when entering the school and is reflected in the lack of common stock of knowledge, limited views, immaturity thinking small intellectual commitment, prevalence gaming interests quick satiety in intellectual activity.