Уровневая организация речевых нарушении при болезни Альцгеимера

This study aims to classify speech impairments in English- and German-speaking patients with Alzheimer’s disease by language level and to determine their frequency. The main objective of the work is to identify patterns of distribution of speech impairments across language levels (phonetic, morphological, lexical, and syntactical) and to test the hypothesis about the predominance of the amnestic type of aphasia in Alzheimer’s disease. The results showed that, in patients of both language groups, lexical impairments were most common, followed by phonetic, syntactic, and morphological ones. This pattern indicates a predominance of the amnestic type of aphasia and confirms the need to classify it as a distinct type with its own symptom complex. The obtained data allow us to clarify the specifics of speech impairments in Alzheimer’s disease and can be used to develop methods for diagnosing and treating aphasic impairments