Evaluation of Speech

  • Nancy Pearl SolomonEmail author


The presentation of voice and laryngeal functions provides important clues for the diagnosis of a wide variety of speech disorders, but voice is just one component of the speech production system. When a person talks, the overall message is formulated and conveyed by complex integration of movements by the respiratory, phonatory, resonatory, and articulatory subsystems, as well as its prosodic components. This chapter focuses on the evaluation of speech for adults with dysarthria. The speech-language pathologist conducts a thorough, systematic examination of the speech production mechanism including observations at rest and during functional and maximal performance tasks. Auditory perceptual evaluation of speech is rated according to multiple parameters loosely arranged by subsystem. Clusters of speech characteristics, corroborated by results from the physical/functional examination, lead to the differential diagnosis among seven categories of dysarthria. Careful differential diagnosis can support the neurological workup of the patient and can lead to appropriate management plans. In addition to overall severity of the speech impairment, intelligibility is often considered a global rating of speech effectiveness. However, intelligibility is usually better than the overall impression of speech impairment and can grossly underestimate the patient’s disability and difficulties with participation in life’s activities. This chapter provides a glimpse into the complexity and depth of the motor speech evaluation and its implications for functional communication in adults with dysarthria. Each section discusses the rationale and interpretation of assessment procedures, current controversies, and recent innovations.


Dysarthria Auditory perceptual assessment Speech production subsystems Respiration Phonation Articulation Resonance Prosody 



The views expressed in this chapter are those of the author and do not reflect the official policy of the Department of Army/Navy/Air Force, Department of Defense, or US Government.


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.National Military Audiology & Speech Pathology Center, Walter Reed National Military Medical CenterBethesdaUSA

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