The perception of Cantonese lexical tones by early-deafened cochlear implantees
The perception of Cantonese lexical tones by early-deafened cochlear implantees
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DOI：
10.1121/1.1471897
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发表时间：
2002-05-01
影响因子：
2.4
通讯作者：
Wong, L
中科院分区：
文献类型：
--
作者：
Ciocca, V;Francis, AL;Wong, L
本研究旨在探讨人工耳蜗植入者能否识别粤语声调，粤语声调的差异主要在于其F0模式。17名早期耳聋儿童（年龄= 4岁6个月至8岁11个月，术后时间= 11-41个月）参加了本研究。16名儿童安装了Nucleus 24人工耳蜗系统; 1名儿童安装了Nucleus 22人工耳蜗。受试者完成了一个2AFC的图片识别任务，在这个任务中，他们识别了单音节目标词/ji/上产生的六个粤语声调中的一个。每一个目标刺激代表一个具体的对象，并在一个载体短语中的中间位置。三个对照组的表现明显高于机会。然而，人工耳蜗植入者的表现比61岁的中度听力受损的对照者差得多，后者接受了相同任务的测试。这些发现表明，这组人工耳蜗使用者在提取准确识别粤语词汇声调所需的音高信息方面存在很大困难。(C)2002年美国声学学会。
This study investigated whether cochlear implant users can identify Cantonese lexical tones, which differ primarily in their F0 pattern. Seventeen early-deafened deaf children (age= 4 years, 6 months to 8 years, 11 months; postoperative period= 11-41 months) took part in the study. Sixteen children were fitted with the Nucleus 24 cochlear implant system; one child was fitted with a Nucleus 22 implant. Participants completed a 2AFC picture identification task in which they identified one of the six contrastive Cantonese tones produced on the monosyllabic target word /ji/. Each target stimulus represented a concrete object and was presented within a carrier phrase in sentence-medial position. Group performance was significantly above chance for three contrasts. However, the cochlear implant listeners performed much worse than a 61-year-old, moderately hearing impaired control listener who was tested on the same task. These findings suggest that this group of cochlear implant users had great difficulty in extracting the pitch information needed to accurately identify Cantonese lexical tones. (C) 2002 Acoustical Society of America.