a form of communication of the child, in which he tries to defend the rights of his personality by countering the demands of others. Most often, it manifests itself in children in relation to the requirements of adults, which do not take into account their internal needs, primarily related to the formation of self-consciousness. It can be expressed in refusal to fulfill the requirements, and in the performance of actions opposite to the required, as well as in stubbornness, rudeness, isolation. Reactions of negativism are most pronounced in children during periods of age crises.