L. S. Tsvetkova believes that speech and writing problems do not arise in isolation from the brain, but reflect a violation of the organization of neuropsychological structures that control higher mental functions. This makes diagnosis and treatment more accurate when symptoms are related to their neuropsychological sources. This concept is based on the notion that speech and writing are the two highest functions of the nervous system, requiring complex interaction between several brain regions, such as the frontal lobe (planning and organizing), the temporal lobe (auditory information processing), and the parieto-occipital lobe (hand-eye information processing). Any violation of this integration can be manifested by a speech or writing disorder. Thus, the association of symptoms with the neuropsychological structure allows specialists to better understand the root causes of the problem and avoid interpreting them as behavioral disorders or learning difficulties. This link also provides a scientific basis for the development of intervention plans that focus not only on language and writing training, but also on improving related neurocognitive processes, such as attention, working memory, and executive function.