a pronounced discrepancy in the rate of development of the child’s higher mental functions, in which some cognitive or emotional abilities develop unusually quickly, while others lag significantly behind age norms. This discrepancy can manifest itself in intellectual and behavioral skills, for example, a child has developed language skills, but there is poor attention, difficulties with self-regulation, or deficits in fine and gross motor skills. This developmental model presents a clinical challenge because it creates a contradictory picture of the child’s abilities and affects learning, social adjustment, and the ability to perform daily tasks. Disorganized psychological development may be the result of physiological or neurological factors, such as delayed maturation of certain areas of the cerebral cortex, or environmental and social factors, such as a lack of diverse stimuli or cognitive deprivation. Understanding this type of development requires a thorough and comprehensive assessment of all higher mental functions, taking into account individual differences and natural differences between children. This understanding allows for the development of comprehensive programs of therapeutic and educational intervention aimed at developing developmental delays, using developed skills and achieving a balance in the psychological and behavioral development of the child, thereby contributing to his overall development and adaptation to the environment.