Lund Emily
Davies School of Communication Sciences & Disorders, Texas Christian University, Fort Worth.
J Speech Lang Hear Res. 2020 Jul 20;63(7):2386-2402. doi: 10.1044/2020_JSLHR-19-00259. Epub 2020 Jul 8.
Purpose The purpose of this study was to evaluate the relation between lexical knowledge and phonological awareness performance of children with cochlear implants. Method Thirty children with cochlear implants (aged 5-7 years), 30 children with normal hearing matched for age, and 30 children with normal hearing matched for vocabulary size participated in the study. Children completed a vocabulary knowledge measure and three phonological awareness tasks with words that had high and low neighborhood density. Results Children with cochlear implants performed more poorly than their age-matched peers and similarly to their vocabulary-matched peers on phonological awareness tasks. When performance was analyzed according to the neighborhood density of the target word, children with cochlear implants and age-matched children performed better with high-density words. Across all groups, vocabulary size correlated significantly with phonological awareness performance. Conclusion Children with cochlear implants demonstrate delays in both vocabulary knowledge and phonological awareness performance, but children with cochlear implants appear to take advantage of lexical information similarly to their age-matched peers.
目的 本研究旨在评估人工耳蜗植入儿童的词汇知识与语音意识表现之间的关系。方法 30名人工耳蜗植入儿童（年龄5至7岁）、30名年龄匹配的听力正常儿童以及30名词汇量匹配的听力正常儿童参与了本研究。儿童完成了一项词汇知识测试以及三项针对邻域密度高低不同的单词的语音意识任务。结果 在语音意识任务中，人工耳蜗植入儿童的表现比年龄匹配的同龄人更差，但与词汇量匹配的同龄人表现相似。当根据目标词的邻域密度分析表现时，人工耳蜗植入儿童和年龄匹配的儿童在高密度单词上表现更好。在所有组中，词汇量与语音意识表现显著相关。结论 人工耳蜗植入儿童在词汇知识和语音意识表现方面均存在延迟，但人工耳蜗植入儿童似乎与年龄匹配的同龄人一样能够利用词汇信息。
