EN
The paper gives an overview of the research conducted in the field of speech and language disorders throughout the history of language sciences. Until the emergence of modern linguistics the primary aim of researchers was to get acquainted with speech and language disorders in view of describing them. From the era of structuralism the primary aim has moved to hypothesis testing and validating linguistic theories. Aphasia, signing of both healthy and aphasic deaf patients, disordered course of language acquisition, oesophagal speech and fluency disorders have been the preferred topics. The outcome has been a better and more complete understanding of the structure of human language and of its functioning in the transmission of information.