Speech and Language: Volume 6, Advances in Basic Research and Practice is a collection of papers that discusses pathology, theories, and clinical issues related to language and speech. Some papers describe auditory discrimination and intervention techniques for articulatory defects, assessment of auditory disorders, phonological systems of deaf speakers, as well as speech and language characteristics of aging persons. Other papers discuss issues in language and cognitive assessment of black children, distortions of the supralaryngeal vocal tract, the structure of the human tongue, transformation of the acoustic signal into speech, and methods to estimate glottal volume velocity waveform properties. One paper suggests guidelines that investigators should be aware of before giving any speech discriminating tests. These guidelines include the following: use of age appropriate tests, use of culturally unbiased tests, adaption of intrapersonal testing procedures, and utilization of recorded stimulus presentation. Another paper reviews auditory processing deficits associated with brain damage and the considerations applicable to the assessment of such disorders. It also suggests treatment planning. One paper concludes that the phonological structure of a fluent speech requires that the listener employ higher level sources of knowledge while making phonetic decisions. Linguists, speech pathologists., psychologists, speech therapists, neurologists, neuropsychologists, and neurolinguists will find the collection highly relevant.

A comprehensive and unified account of the neural computations underlying speech production, offering a theoretical framework bridging the behavioral and the neurological literatures. In this book, Frank Guenther offers a comprehensive, unified account of the neural computations underlying speech production, with an emphasis on speech motor control rather than linguistic content. Guenther focuses on the brain mechanisms responsible for commanding the musculature of the vocal tract to produce articulations that result in an acoustic signal conveying a desired string of syllables. Guenther provides neuroanatomical and neurophysiological descriptions of the primary brain structures involved in speech production, looking particularly at the cerebral cortex and its interactions with the cerebellum and basal ganglia, using basic concepts of control theory (accompanied by nontechnical explanations) to explore the computations performed by these brain regions. Guenther offers a detailed theoretical framework to account for a broad range of both behavioral and neurological data on the production of speech. He discusses such topics as the goals of the neural controller of speech; neural mechanisms involved in producing both short and long utterances; and disorders of the speech system, including apraxia of speech and stuttering. Offering a bridge between the neurological and behavioral literatures on speech production, the book will be a valuable resource for researchers in both fields.