Guo Ling-Yu, Spencer Linda J
Department of Communicative Disorders and Sciences, University at Buffalo, NY; Department of Audiology and Speech-Language Pathology, Asia University, Taiwan.
Master's Speech-Language Pathology Program, Rocky Mountain University of Health Professions, Provo, UT.
J Speech Lang Hear Res. 2017 Apr 14;60(4):1062-1075. doi: 10.1044/2016_JSLHR-H-16-0182.
We sought to evaluate the development of grammatical accuracy in English-speaking children with cochlear implants (CIs) over a 3-year span.
Ten children who received CIs before age 30 months participated in this study at 3, 4, and 5 years postimplantation. For the purpose of comparison, 10 children each at ages 3, 4, and 5 years with typical hearing were included as well. All children participated in a story-retell task. We computed percent grammatical communication units (PGCU) in the task.
Children with CIs showed significant improvement in PGCU over the 3-year span. However, they produced lower PGCU than children with typical hearing who had matched hearing age at 4 and 5 years postimplantation. At the individual level, some children with CIs were able to produce PGCU comparable to children with typical hearing as early as 3 years after implantation. Better speech-perception skills at earlier time points were associated with higher PGCU at later time points. Moreover, children with and without CIs showed similar rankings in the types of grammatical errors.
Despite having auditory-perceptual and information-processing constraints, children who received CIs before age 30 months were able to produce grammatical sentences, albeit with a delayed pattern.
我们试图评估3岁前接受人工耳蜗植入（CI）的英语儿童在3年时间里语法准确性的发展情况。
10名在30个月龄前接受人工耳蜗植入的儿童在植入后3年、4年和5年参与了本研究。为了进行比较，还纳入了10名3岁、4岁和5岁听力正常的儿童。所有儿童都参与了一个故事复述任务。我们计算了该任务中的语法交流单元百分比（PGCU）。
接受人工耳蜗植入的儿童在3年时间里PGCU有显著提高。然而，他们的PGCU低于植入后4年和5年听力年龄匹配的听力正常儿童。在个体水平上，一些接受人工耳蜗植入的儿童在植入后3年就能产生与听力正常儿童相当的PGCU。早期更好的言语感知技能与后期更高的PGCU相关。此外，接受和未接受人工耳蜗植入的儿童在语法错误类型上的排名相似。
尽管存在听觉感知和信息处理方面的限制，但在30个月龄前接受人工耳蜗植入的儿童能够产出符合语法的句子，尽管存在延迟模式。
