For courses in speech and hearing science and anatomy and physiology in the discipline of communication sciences and disorders.

Theory and clinical application combine to present a well-rounded, accessible, relevant look at the evaluation and treatment of communication disorders.

The 4th Edition of this widely popular book focuses on the relationship between the scientific study of speech production and perception and the application of the material to the effective evaluation and treatment of communication disorders. Theoretical material is presented first, followed by clinical application chapters highlighting specific disorders. The organisation of chapters in the new edition now more closely follows the speech subsystems approach, beginning with basic acoustics, and moving on to the respiratory system, phonatory system, articulatory/resonatory system, auditory system, and nervous system.

As in previous editions, the book concludes with information on classic and current models and theories of speech production and perception. New and revised full color illustrations and larger spectrograms supplement the concepts presented by clearly depicting scientific and anatomical material and ensuring understanding of the links between the underlying science and human communicative behaviour.