The research featured senior preschoolers with phonetic-phonemic speech underdevelopment. The authors described the peculiarities of speech development in such children and analyzed related publications. As a rule, impaired sound pronunciation includes low tempo and weak voluntary regulation. The study featured substitutions, distortion, or absence of various sounds. The authors tested a set of measures aimed at correcting speech disorders in senior preschool children with phonetic-phonemic

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... ch underdevelopment. The experiment revealed a combination of incorrect pronunciation with sounds that were partially consistent in a certain context. Cognitive parameters included difficulties in memorizing verbal information and poor auditory memory. The subjects failed active speech tests and could not remember oral information. The article also introduces data on the specifics of speech therapy of phonemic hearing.