CSD-2259 Lecture Notes - Lecture 12: Muscle Weakness, Hypernasal Speech, Speech-Language Pathology

• School: App State
• Department: Communication Sciences and Disorders
• Course: CSD-2259
• Professor: Joe Klein

Document Summary

Csd chapter 12- motor speech disorders (apraxia and dysarthria) Accuracy in motor production is critical for effective communication. Speech motor control: an individual"s control over the muscular coordination involved with producing speech. Follows a course of development that begins at birth and continues to about age 12. By adolescence, most children exhibit adult-like speech motor control. Motor speech disorder: an impairment of speech production caused by defects of the neuromuscular system, the motor control system, or both. Defects in these underlying systems involved with planning, programming, and executing speech result in significant difficulties producing fluent, intelligible speech. Does not result from and cannot be explained by other disorders, although other disorders may co-occur. Systems of speech production speech production involves the coordination in space and time of muscles and muscle groups from four major systems: respiratory system- regulates the inhalation/ exhalation cycle for passive breathing and for producing speech. Egressive (going out) english relies on this airflow for sound production.