Psychophysiological Characteristics of Identifying Activity of Younger Schoolchildren Summary Studies have shown that children of younger school age learn very complex mental skills and norms of behavior with amazing ease. Junior school age is a period of emotions, accumulation of knowledge, mainly assimilation. Junior school age is a period of gathering, memorizing and assimilating knowledge. Imitation is the source of success in the education of a young schoolboy. Students repeat the judgments of the teacher, give examples similar to those of their friends, etc. Although from the outside it may seem like copying, in fact it helps the child to learn the learning material. But at the same time, it can lead to superficial assimilation of those or other events. It is not typical for children of this age to think about any difficulties and complexities. The direction of the young schoolboy's personality is expressed by his needs and motives. There is still a high demand for game activity, but the content of the game is changing. now, while playing, he writes, solves problems, reads, draws, reads for ten hours. All this is important to consider when organizing training activities. Key words: younger schoolboy, intersubject integration, cognitive activity, psychophysiological features, assimilation, adaptation