Fundamental concept of child neuropsychology. She emphasizes that the development of a child does not necessarily occur in a single or balanced rhythm for all higher mental functions. In contrast, each child is characterized by a unique and distinctive pattern of development that reflects superiority in some areas along with deficiencies or delays in others. The developmental problems that a child may face do not necessarily imply an absolute deficit or a permanent disability; rather, they represent a discrepancy in the degree of development of different mental functions: speech, memory, attention, or executive abilities, compared to other areas that may be more developed (e.g., logical reasoning or creativity). Such an understanding allows us to consider difficulties and talents within the framework of a complex concept, where exceptional abilities and neuropsychological problems are considered as part of a separate individual developmental trajectory, and not as a contradiction. Hence the importance of an individual assessment of each mental function, taking into account its interconnection with other functions within the framework of the general system of development. This allows for a holistic picture of the child’s condition, which helps to develop more accurate and effective support strategies that empower the child and compensate for his or her weaknesses within a balanced developmental pathway.