the period of childhood from birth to one year. By the end of this period, the child normally begins to walk, pronounces the first words, and there is a partial or complete refusal to breastfeed. In Russian psychology, there is a “crisis of the first year”, which ends infancy and which is associated with the separation of unity with the mother of a child who has learned to walk and the first acts of protest, opposition to others, awareness of the gap between one’s own desires and capabilities.