Abstract:
The article performs the interdisciplinary analysis of affirmation and negation research, specifies the
psychological aspect of their study, shows and demonstrates the basic laws of occurrence and development of
affirmation and negation in children, preadolescents and adolescents in ontogenesis, psychological mechanisms of
their functioning by applying different methods, tests, observations, techniques in life, activity, communication,
behavior, conduct from birth to adulthood.
