ORIGINAL ARTICLE Commun Sci Disord. 1999;4(1): 1-14.
 Developmental Apraxia of Speech Seo Lin Park , and Hyang Hee Kim Copyright ©1999 The Korean Academy of Speech-Language Pathology and Audiology 박서린(Seo Lin Park)| 김향희(Hyang Hee Kim) Share : ABSTRACT The present study was undertaken (1) to investigate the definition s, characteristics, evaluation and treatment of developmental apraxia of speech (DAS ) through literature review, and (2) to report a case study of evaluation and treatment of a child who was assumed to have DAS. The case study verified the following core characteristics of DAS shown in the current literature: (1) inconsistency of error patterns within and between sessions , (2) sequencing difficulties when producing multisyllabic words, (3) slow diadochokinetic rates , (4) high frequency of groping/ silent posturing while producing phonemes, and (5) slow treatment progress. T hose attributes were different from those of functional articulation or phonological disorder s . Therefore, we emphasize the importance of differential diagnosis of DAS from other speech disorder s on the basis of aforementioned characteristics.
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