Whitehill Tara L, Francis Alexander L, Ching Christine K Y
Department of Speech and Hearing Sciences, University of Hong Kong, Hong Kong.
J Speech Lang Hear Res. 2003 Apr;46(2):451-61. doi: 10.1044/1092-4388(2003/037).
The aim of this study was to determine if children with repaired cleft palate who demonstrate posterior placement of alveolar targets (e.g., /t(h)/ --> [k(h)]), known as Group P, differ from children with cleft palate without such an error pattern (Group NP) and from normally developing children without cleft palate (Group N) in the perception of /t(h)/ and /k(h)/. Ten age-matched children in each of these three groups identified 8 synthetic stimuli along an acoustic continuum ranging from /t(h)/ to /k(h)/. The children with posterior placement performed at random levels, appearing unable to distinguish /t(h)/ from /k(h)/. In contrast, both groups of children without posterior placement demonstrated a clear identification pattern. These results, which suggest that children with cleft palate and posterior placement have a perceptual deficit, contribute to discussion of the possible etiology of speech deficits in this population.
本研究的目的是确定腭裂修复术后表现出牙槽目标后移（例如，/t(h)/ --> [k(h)]）的儿童（称为P组）与无此类错误模式的腭裂儿童（NP组）以及无腭裂的正常发育儿童（N组）在/t(h)/和/k(h)/的感知方面是否存在差异。这三组中每组十名年龄匹配的儿童沿着从/t(h)/到/k(h)/的声学连续体识别8种合成刺激。有后移现象的儿童表现为随机水平，似乎无法区分/t(h)/和/k(h)/。相比之下，两组无后移现象的儿童都表现出清晰的识别模式。这些结果表明有腭裂和后移现象的儿童存在感知缺陷，有助于对该人群言语缺陷可能病因的讨论。
