Coplan J, Gleason J R
Department of Pediatrics, State University of New York, Syracuse 13210.
Pediatrics. 1988 Sep;82(3 Pt 2):447-52.
Clarity of speech normally improves throughout the first few years of life, with acquisition of complete intelligibility by 4 years of age. Delayed emergence of intelligibility, or frankly unintelligible speech, often signify the presence of a major disturbance of language, overall cognitive development, or hearing. Norms are provided for the ages by which a child should be 50%, 75%, and 100% intelligible to strangers, and a new technique for screening intelligibility of speech is described. Data validating this technique are presented, and the developmental implications of unintelligible speech are reported. The importance of screening for intelligibility of speech is emphasized, in light of the findings presented.
在生命的最初几年里，言语清晰度通常会不断提高，到4岁时就能完全被理解。可理解性出现延迟，或者言语完全无法理解，往往意味着存在语言、整体认知发展或听力方面的重大障碍。文中给出了儿童在不同年龄段应达到让陌生人50%、75%和100%理解的标准，并描述了一种筛查言语可理解性的新技术。还展示了验证该技术的数据，并报告了言语无法理解的发展影响。根据所呈现的研究结果，强调了筛查言语可理解性的重要性。
