Date of Award


Degree Name

Master of Arts


Speech, Language and Hearing Sciences


Speech Pathology and Audiology

First Advisor

Dr. Robert L. Erickson

Access Setting

Masters Thesis-Open Access



Research is being conducted in numerous areas of interest in an effort to better understand the functionings of the various speech deviations. One promising area of investigation is studying speech production as an automatic-control system or a servosystem. Interest in studying the theories of servosystems was greatly stimulated by the work of Nobert Wiener, who first formulated and developed the science of cybernetics. An integral aspect of cybernetic theory is the concept of controlling the behavior of a system by monitoring and evaluating the system's own output. Wiener stated that, in its simplest form, "...the feedback principle means that behavior is scanned for its result, and that the success or failure of this result modifies future behavior" (42, p. 69). The scanning of human speech behavior is performed by a number of senses. Audition, both by bone conduction and by air conduction, proprioception, taction, and kinesthesia seem to be the modalities most directly responsible for controlling.