早期植入人工耳蜗儿童与典型听力同龄人的多层级叙事评估比较

文献信息

中文摘要

人工耳蜗（CI）提供听觉通路，支持重度至极重度听力损失聋儿的口语发展，尤其是在早期植入的情况下。本研究采用涵盖产出性、微观语言和宏观语言指标的多层级框架，评估了16名学龄期早期植入CI儿童与16名年龄匹配的典型听力同龄人的叙事能力。结果表明，早期CI使用者的产出性和语法准确性基本保留。相比之下，词汇多样性（所用不同词汇的范围）和信息性（对语篇贡献必要信息的词汇）成为残余薄弱环节，CI儿童产生的叙事变化较少且信息量较低，尤其在使用代词和小品词等功能词方面。总体而言，研究结果揭示了CI使用者存在的特定困难，这些困难可通过多层级评估任务进行临床评估和干预。

英文摘要

Cochlear implants (CIs) provide auditory access that supports the development of oral language in deaf children with severe-to-profound hearing loss, especially when implantation occurs early. This study assessed narrative abilities in 16 school-aged children with early CIs compared to 16 typically hearing peers matched for age, using a multilevel framework encompassing productivity, microlinguistic, and macrolinguistic measures. Results indicated that productivity and grammatical accuracy were largely preserved in early CI users. In contrast, lexical diversity (the range of different words used) and informativeness (words that contribute essential information to discourse) emerged as residual weaknesses, with CI children producing less varied and informative narratives, particularly in the use of function words such as pronouns and clitics. Overall, the findings reveal specific difficulties among CI users that can be clinically assessed and addressed through multilevel evaluation tasks.