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The student of disorders of speech is constantly running across terms in the literature with which he is not familiar. In many cases each author uses his own terms; in some cases as many as twenty terms have been given to one and the same disorder. Realizing the need of a systematic international classification of disorders of speech, the American Society for the Study of Disorders of Speech appointed a Nomenclature Committee to prepare such a classification. The committee has authorized the publication of a tentative dictionary at this time for the express purpose of giving those engaged in correcting disorders of speech an opportunity to criticize and improve its definitions.
The committee has tentatively divided disorders of speech into seven classes: dysarthria, dyslalia, dyslogia, dysphasia, dysphemia, dysphonia and dysrhythmia. Each class, in turn, has been divided into descriptive groups by replacing the prefix dys with a suitable descriptive prefix.
A Dictionary of Terms Dealing with Disorders of Speech. Arch NeurPsych. 1931;26(3):681–682. doi:10.1001/archneurpsyc.1931.02230090214018
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