Changes in speech intelligibility of postlingually deaf adults after cochlear implantation.
Changes in speech intelligibility of postlingually deaf adults after cochlear implantation.
复制标题
人工耳蜗植入后舌后聋成人言语清晰度的变化。
DOI：
10.1097/00003446-200112000-00002
复制
发表时间：
2001
期刊：
影响因子：
3.7
通讯作者：
Zandipour,M
中科院分区：
文献类型：
--
作者：
Gould,J;Lane,H;Vick,J;Perkell,JS;Matthies,ML;Zandipour,M
目的：本研究考察了经过6 ~ 12个月人工耳蜗植入后的语后聋成人CVC词汇可理解性的变化。指导这项研究的假设是，在长期使用人工耳蜗后，这些说话者的可理解性将得到改善。本文还从音素类和特征两方面分析了CVC词的可理解性变化。实验记录了8例后语聋成人在人工耳蜗语音处理器激活前、激活后6个月和1年的语音。17名没有听力障碍的听众在听每个植入物使用者在噪音中的讲话时完成了单词识别任务。研究人员分别测量了11个英语辅音和8个元音在激活前和激活后的录音中所传递的信息百分比。结果8名说话者中有7人的元音和6人的辅音清晰度均有提高。然而，具体的辅音和元音特征的可理解性在不同的说话者之间差异很大。结论成年语后失聪患者长期使用人工耳蜗可提高其语音理解能力。
ObjectiveThis study examines changes in the intelligibility of CVC words spoken by postlingually deafened adults after they have had 6 to 12 mo of experience with a cochlear implant. The hypothesis guiding the research is that the intelligibility of these speakers will improve after extended use of a cochlear implant. The paper also describes changes in CVC word intelligibility analyzed by phoneme class and by features.DesignThe speech of eight postlingually deaf adults was recorded before activation of the speech processors of their cochlear implants and at 6 mo and 1 yr after activation. Seventeen listeners with no known impairment of hearing completed a word identification task while listening to each implant user’s speech in noise. The percent information transmitted by the speakers in their pre-and postactivation recordings was measured for 11 English consonants and eight vowels separately.ResultsAn overall improvement in word intelligibility was observed: seven of the eight speakers showed improvement in vowel intelligibility and six speakers showed improvement in consonant intelligibility. However, the intelligibility of specific consonant and vowel features varied greatly across speakers.ConclusionsExtended use of a cochlear implant by postlingually deafened adults tends to enhance their intelligibility.