Lexical tone recognition in noise in normal-hearing children and prelingually deafened children with cochlear implants.
Lexical tone recognition in noise in normal-hearing children and prelingually deafened children with cochlear implants.
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DOI：
10.1080/14992027.2016.1219073
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发表时间：
2017
影响因子：
2.7
通讯作者：
Xu L
中科院分区：
文献类型：
--
作者：
Mao Y;Xu L
本研究的目的是调查植入人工耳蜗 (CI) 的儿童在背景噪音中的普通话声调识别能力，并检查影响其表现的潜在因素。在各种信噪比 (SNR) 条件（即安静、+12、+6、0 和 −6 dB）下，使用两种替代的强制选择范例来测试音调识别。进行线性相关分析来检查 CI 儿童的音调识别表现与人口因素之间可能的关系。 66 名患有 CI 的语前聋儿童和 52 名听力正常 (NH) 儿童作为对照参加了这项研究。与 NH 同龄人相比，患有 CI 的儿童总体上表现出较差的音调识别能力，并且更容易受到噪音的影响。除了最差的 SNR 条件外，普通话声调 2 和声调 3 之间的声调混淆在 CI 和 NH 儿童中最为突出。着床年龄与 CI 儿童在噪声中的音调识别表现显着相关。患有 CI 的语前聋儿童的音调识别存在明显缺陷，特别是在噪音聆听条件下。虽然造成巨大个体差异的因素仍然难以捉摸，但早期植入可能有利于儿科 CI 用户的音调发育。
The purpose of the present study was to investigate Mandarin tone recognition in background noise in children with cochlear implants (CIs), and to examine the potential factors contributing to their performance. Tone recognition was tested using a two-alternative forced-choice paradigm in various signal-to-noise ratio (SNR) conditions (i.e., quiet, +12, +6, 0, and −6 dB). Linear correlation analysis was performed to examine possible relationships between the tone-recognition performance of the CI children and the demographic factors. Sixty-six prelingually deafened children with CIs and 52 normal-hearing (NH) children as controls participated in the study. Children with CIs showed overall poorer tone-recognition performance and were more susceptible to noise than their NH peers. Tone confusions between Mandarin tone 2 and tone 3 were most prominent in both CI and NH children except for in the poorest SNR conditions. Age at implantation was significantly correlated with tone-recognition performance of the CI children in noise. There is a marked deficit in tone recognition in prelingually deafened children with CIs, particularly in noise listening conditions. While factors that contribute to the large individual differences are still elusive, early implantation could be beneficial to tone development in pediatric CI users.