使用人工耳蜗的语前重度听力损失儿童的辅音产出
Consonant production in children with prelingual profound hearing loss using cochlear implants.
文献信息
| PMID | 42815567 |
|---|---|
| 原文 | 在 PubMed 查看原文 ↗ |
| 发表日期 | 2026 |
| 作者 | F Núñez-Batalla |
| 作者单位 | Servicio de Otorrinolaringología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain. Electronic address: fjnunezb@gmail.com. |
| 期刊 | Acta otorrinolaringologica espanola |
| SCI 分区 | Q3 |
| IF | 1.1 |
| 研究类型 | 临床研究 · 临床 |
| 所属专科 | 耳科 |
中文摘要
引言： 听觉在言语产生的发展和控制中起关键作用。在语前重度听力损失儿童中，听觉剥夺可能影响语音的构音和声学精确性。尽管人工耳蜗植入改善了听觉感知，但其对辅音产出的影响仍是一个持续研究的领域。
材料和方法： 进行了一项横断面观察性研究，以分析擦音和塞音的声学参数。纳入三组：22名使用人工耳蜗的语前重度听力损失儿童、42名5-11岁听力正常儿童，以及19名听力正常成人作为塞音分析的参考组。使用声学语音录音分析擦音/s/和/ʃ/的频谱参数以及塞音的嗓音起始时间（VOT）。
结果： 与听力正常儿童相比，人工耳蜗儿童在擦音频谱参数上表现出更大的变异性，提示这些音素的产出较不稳定。植入组的/s/和/ʃ/之间频谱重心距离更大，这可能反映维持音位对比的构音补偿策略。在我们的样本中，人工耳蜗儿童的VOT值与听力正常儿童观察到的值相当，尤其是清塞音。
结论： 人工耳蜗儿童在擦音产出上表现出更大的变异性，可能与高频感知的限制有关。然而，在我们的样本中，VOT的发育模式似乎与听力正常儿童相似。这些声学参数可能代表用于评估语音发展并指导人工耳蜗使用者言语康复的有用客观指标。
英文摘要
INTRODUCTION: Hearing plays a key role in the development and control of speech production. In children with prelingual profound hearing loss, auditory deprivation may affect articulation and acoustic precision of speech sounds. Although cochlear implantation improves auditory perception, its impact on consonant production remains an area of ongoing research.
MATERIAL AND METHODS: A cross-sectional observational study was conducted to analyze acoustic parameters of fricative and stop consonants. Three groups were included: 22 children with prelingual profound hearing loss using cochlear implants, 42 normal-hearing children aged 5-11 years, and 19 normal-hearing adults used as a reference group for stop consonant analysis. Spectral parameters of the fricatives /s/ and /ʃ/ and Voice Onset Time (VOT) of stop consonants were analyzed using acoustic speech recordings.
RESULTS: Children with cochlear implants showed greater variability in the spectral parameters of fricatives compared with normal-hearing children, suggesting a less stable production of these sounds. The spectral center of gravity distance between /s/ and /ʃ/ was greater in the implanted group, which may reflect articulatory compensation strategies to maintain phonetic contrast. VOT values in children with cochlear implants in our sample were comparable to those observed in normal-hearing children, particularly for voiceless stop consonants.
CONCLUSIONS: Children with cochlear implants exhibit greater variability in fricative production, likely related to limitations in high-frequency perception. However, the developmental pattern of VOT in our sample appears similar to that of normal-hearing children. These acoustic parameters may represent useful objective measures for evaluating phonetic development and guiding speech rehabilitation in cochlear implant users.