Cleary Miranda, Dillon Caitlin, Pisoni David B
Department of Psychology, Indiana University, Bloomington 47405-7007, USA.
Ann Otol Rhinol Laryngol Suppl. 2002 May;189:91-6. doi: 10.1177/00034894021110s519.
Fourteen prelingually deafened pediatric users of the Nucleus-22 cochlear implant were asked to imitate auditorily presented nonwords. The children's utterances were recorded, digitized, and broadly transcribed. The target patterns and the children's imitations were then played back to normal-hearing adult listeners in order to obtain perceptual judgments of repetition accuracy. The results revealed wide variability in the children's ability to repeat the novel sound sequences. Individual differences in the component processes of encoding, memory, and speech production were strongly reflected in the nonword repetition scores. Duration of deafness before implantation also appeared to be a factor associated with imitation performance. Linguistic analyses of the initial consonants in the nonwords revealed that coronal stops were imitated best, followed by the coronal fricative /s/, and then the labial and velar stops. Labial fricatives were poorly imitated. The theoretical significance of the nonword repetition task as it has been used in past studies of working memory and vocabulary development in normal-hearing children is discussed.
14名使用Nucleus-22型人工耳蜗的语前聋儿童被要求模仿听觉呈现的非词。记录这些儿童的话语，进行数字化处理并进行大致转录。然后将目标模式和儿童的模仿内容播放给听力正常的成年听众，以获得对重复准确性的感知判断。结果显示，儿童重复新声音序列的能力存在很大差异。编码、记忆和言语产生等组成过程中的个体差异在非词重复分数中得到了强烈体现。植入前耳聋的持续时间似乎也是与模仿表现相关的一个因素。对非词中首辅音的语言分析表明，舌尖塞音模仿得最好，其次是舌尖擦音/s/，然后是唇塞音和软腭塞音。唇擦音模仿得很差。本文讨论了非词重复任务在过去对听力正常儿童工作记忆和词汇发展研究中的理论意义。
