This comprehensive textbook for speech pathology and audiology students covers the production, acoustics, and perception of normal speech. Other topics include anatomy, physiology, research methodology, and history and evolution of speech science. New to this completely revised Fourth Edition are: an updated section on computers in research, analysis and data processing; new material on MRI, PET, CAT and ultrasound imaging; and new and updated figures. Includes audio clip. For more information, visit http: //connection.LWW.com/go/speechscience.