Analysis of dysarthric speech after a traumatic brain injury

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This book examines consonant production and intonation in dysarthric speech after traumatic brain injury, highlighting the decline in consonant production and prosodic abnormalities. It particularly investigates plosives, noting that imprecision in their production is common in dysarthria. The focus is on incomplete oral closures and the coordination of the oral and glottal systems. After reviewing key concepts in dysarthria, prosody, and phonetic science, the book presents findings from a study on individuals with dysarthric speech. It shifts from traditional segmental approaches, which often describe speech through deletions and substitutions, to the Articulatory Phonology approach, analyzing speech in terms of articulatory gestures. This method quantitatively describes modifications in speech production, such as undershooting gestural targets. The book also illustrates prosodic deficits like reduced pitch modulation and slow speaking rates. Ultimately, it emphasizes the need for speech therapists to adopt a dynamic approach that integrates prosody and supralaryngeal articulation in diagnostic tests for dysarthria. It also suggests the development of new diagnostic tools that consider articulatory gestures, making it a valuable resource for students in linguistics, language pathology, and speech sciences.