Tone production of Mandarin Chinese speaking children with cochlear implants
Tone production of Mandarin Chinese speaking children with cochlear implants
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DOI：
10.1016/j.ijporl.2007.02.008
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发表时间：
2007-06-01
影响因子：
1.5
通讯作者：
Xu, Li
中科院分区：
文献类型：
--
作者：
Han, Demin;Zhou, Ning;Xu, Li
目的：本研究的目的是调查植入人工耳蜗的以普通话为母语的儿童的发声表现，并评估植入年龄和植入物使用时间对儿童发声的影响。方法：14 名接受人工耳蜗植入的语前聋儿童和 14 名年龄匹配的正常听力儿童参与研究。两组都是以普通话为母语的儿童。每个孩子的声音记号有一百六十个。然后，总共 4480 个标记 (160 x 28) 用于音调感知测试，其中有 7 名听力正常、以普通话为母语的成年人参加。结果：人工耳蜗植入儿童的音调产生显示出巨大的个体差异。该组平均表现正确率为 48.4%，在统计上显着低于正常听力对照组的平均表现（78.0% 正确率）。声调混淆矩阵分析显示，人工耳蜗儿童普通话声调 2（上声）的发音受损最严重，其次是声调 3（低音调和降声）和声调 4（去声）。无论目标音如何，最常感知的音是音 1（高 [eve[ 音））。发声表现与植入年龄呈负相关，与植入物使用时间呈正相关。结论：大多数接受人工耳蜗植入的母语语前聋儿童在发声方面存在显着缺陷。虽然增加植入物的使用时间可能会促进声音的产生，但植入年龄似乎会对人工耳蜗植入儿童的声音产生产生负面影响。因此，早期植入可能有利于母语为声调语言的语前聋儿的声调产生。 (c) 2007 Elsevier Ireland Ltd. 保留所有权利。
Objective: The purpose of the present study was to investigate tone production performance of native Mandarin Chinese speaking children with cochlear implants and to evaluate the effects of age at implantation and duration of implant use on tone production in those children.Methods: Fourteen prelingually deaf children who had received cochlear implantation and 14 age-matched normal-hearing children participated in the study. Both groups were of native Mandarin Chinese speaking children. One hundred and sixty tone tokens were recorded from each of the children. The total of 4480 tokens (160 x 28) were then used in the tone perception tests in which seven normal-hearing native Mandarin Chinese speaking adults participated.Results: The tone production of the cochlear implant children showed tremendous individual variability. The group mean performance was 48.4% correct, statistically significantly lower than the group mean performance of 78.0% correct in the normal-hearing controls. The tone confusion matrix analysis revealed that the production of Mandarin tone 2 (the rising tone) was most severely impaired in the cochlear implant children, followed by tone 3 (the low and dipping tone) and tone 4 (the falling tone). The most frequently perceived tone irrespective of the target tone was tone 1 (the high [eve[ tone). The tone production performance was negatively correlated with the age at implantation and positively correlated with the duration of implant use.Conclusions: There is a remarkable deficit in tone production in a majority of native tone language speaking, prelingually deaf children who have received cochlear implants. While an increased duration of implant use might facilitate tone production, the age at implantation appears to have a negative effect on tone production in cochlear implant children. Therefore, early implantation might be beneficial to tone production in prelingually deaf children whose native language is a tone language. (c) 2007 Elsevier Ireland Ltd. All rights reserved.