Covering the field of clinical phonetics and linguistics, this work covers such areas as phonological issues in normal and defective development; aphasia, dysfasia, dysartlia, apraxia of speech and neurological conditions; and critical evaluations of methods in clinical assessments, acoustic and psychological measurements for the differential diagnosis of (motor) speech disorders. Particular emphasis is put on hearing and central auditory processing disorders, including their consequences for language and speech, and for the study of the relation between psycholinguistic input and output processes.