This book reports recent research on mechanisms of normal formulation and control in speaking and in language disorders such as stuttering, aphasia and verbal dyspraxia. The theoretical claim is that such disorders result both from deficits in a component of the language production system and interactions between this component and the system that 'monitors' for errors and undertakes a corrective behaviour. In particular, the book focuses on phonological encoding in speech (the construction of a phonetic plan for utterances), on verbal self-monitoring (checking for correctness and...