语后聋人工耳蜗植入者言语识别与生活质量评价

目的对语后聋成年人工耳蜗植入者的言语识别能力和术后生活质量进行评估,并探讨二者之间的相关性。方法 12例植入手术半年以上的语后聋人工耳蜗植入者,男性5例,女性7例。应用噪声下普通话言语测试系统(Mandarin Hearing in Noise Test,MHINT)评估植入者在安静条件下和噪声条件下的言语识识别能力,其噪声条件下测试以每一个体在安静条件下所得言语识别率的50%为标准,获得该标准下的信噪比;应用Nijmegen人工耳蜗植入量表(Nijmegen Cochlear Implantation Questionnaire,NCIQ)评价植入者的术后生活质量。结果所有植入者术后言语识别率和生活质量均有明显改善。①安静条件下平均言语识别率为63.5±26.6%;②噪声条件下的平均信噪比为10.3±3.7dB;③NCIQ总分及基本声音感知、高级声音感知、言语功能、自信心、活动能力和交流能力等六个子维度得分均有改善(P<0.05);④NCIQ总分及各子维度得分与言语测试结果间均无显著相关(P>0.05)。结论语后聋成年人工耳蜗植入者术后生活质量获得显著改善,其自我主观评价明显优于言语识别能力评价。     

语后聋成年人工耳蜗植入者术后生活质量的跟踪性评价

目的 研究语后聋成年人工耳蜗植入者术后生活质量随时间变化的发展趋势和影响因素.方法 对28例语后聋成年人工耳蜗植入者(男16例,女12例,年龄39.82±16.38岁)分别在人工耳蜗植入术前、开机后1、3、6、12个月时,采用Nij megen人工耳蜗植入量表(NCIQ中文版,包括基本声音感知、高级声音感知、言语能力、...     

语后聋Nucleus人工耳蜗使用者的声调识别

目的 评估语后聋Nucleus人工耳蜗使用者的普通话声调识别水平，探讨其影响因素。方法应用(MACC)材科及北京协和医院耳蜗中心自编（声调测试）材科，评估14例语后聋Nucleus人工耳蜗使用者的普通话声调识别能力，其中使用Nucleus24型Sprint产品ACE方案者11例，Nucleus22型MSP产品MPEAK方案者3例。结果所有植入者的普通话声调识别率均高于机会水平，其中2例Nucleus24型Sprint产品使用者可达到100％。结论Nucleus人工耳蜗语后聋使用者可以获得较好的普通话声调识别．Nucleus24型Sprint产品可为部分植入者提供充分的声调信息。     

Nijmegen人工耳蜗植入量表中文版信度和效度评价

目的 探讨Nijmegen人工耳蜗植入量表(Nijmegen Cochlear Implant Questionnaire,NCIQ)中文版信度和效度特征,为人工耳蜗术后效果评估提供一种简便可行的综合性评价方法.方法 NCIQ量表含有6个子维度(基本声音感知、高级声音感知、言语能力、自信心、活动能力和社会交流),采用跨文化翻译法将NCIQ量表翻译成中文版量表,对94例18岁及以上人工耳蜗使用者采用中文版量表进行评估.初评2周后,随机数字表法选择30例人工耳蜗植入者使用同一量表进行再次评估.结果 ①信度检验:6个子维度及量表总评分的重测信度系数均大于0.70(P值均<0.01);内部一致性检验中5个子维度和量表总评分的Cronbach α系数大于0.700,言语能力的α系数=0.560.②效度检验:结构效度检验显示6个子维度与总量表之间的相关度在0.620～0.810之间(P值均<0.01),6个子维度之间相关性较低或不相关;由专家集体评议语句代表性的内容效度,其评价结果为较高;区分效度检验显示语后聋植入者总量表评分及高级声音感知、言语能力、自信心、活动能力和社会交流等5个子维度评分均明显高于语前聋组,差异有统计学意义(Z值分别为4.350、4.774、4.416、3.718、3.228、3.001,P值均<0.05),基本声音感知方面评分差异无统计学意义(Z=1.943,P=0.052).结论 NCIQ中文版基本满足健康相关生活质量量表所需的心理测量学特性标准,可以初步用来评估人工耳蜗植入者的术后效果.     

多通道人工耳蜗在语前聋儿童及青少年中的应用

目的　通过对植入人工耳蜗的语前聋儿童和青少年的听力和语言能力的评估 ,探讨我国儿童在使用人工耳蜗后的听力和言语能力发展规律及影响因素。方法　 2 5例行人工耳蜗植入的语前聋儿童及青少年患者参与本组测试。选用《聋儿听觉言语康复评估方法》作为测试材料 ,分别进行声音、言语声和环境声的辨别 ,数词、单字词、双字词、3字词、韵母、声母、声调、封闭项列短句的识别 ,开放项列字词和开放项列短句识别 ,语言清晰度 ,模仿句长 ,听话识图和看图说话等方面测试。结果　受试者术后均能感知到声音 ,辨别不同类别的声音。封闭项列测试结果全部大于机会水平 ,正确识别率随人工耳蜗使用时间而不断增加 ,随植入时年龄的增长而呈下降趋势。术后约半年显现开放项列识别能力 ,使用人工耳蜗后对患儿的言语发育具有较大帮助。结论　尽早对语前聋患儿植入人工耳蜗及进行术后康复 ,以达改善听力 ,提高语言能力 ,促进身心全面发展的目的。     

青少年语前聋患者人工耳蜗植入后生活质量评估

目的 评估青少年语前聋患者人工耳蜗植入术后家庭及个人的生活质量,并比较术前交流方式对其影响.方法 回顾性分析21例语前聋人工耳蜗植入青少年患者的临床资料,按照术前交流方式分为非言语组(10例)和言语组(11例),采用听力植入体使用儿童的家庭生活质量(children using hearing implants quality of life,CuHI Qol)及Nijmegen 人工耳蜗植入量表(Nijmegen cochlear implant questionnaire,NCIQ)对两组患者植入人工耳蜗前后进行评分,比较两组患者得分差异.结果 21例患者人工耳蜗植入术后的CuHI Qol平均得分51.71%±8.9%,较术前(42.14%±6.04%)有明显提高(P<0.001),其中言语组对家庭的影响方面术后得分与非言语组差异无统计学意义(P>0.05),父母的期望及生活质量两方面言语组得分均高于非言语组(P<0.05);术后NCIQ评估言语组平均得分(51.00±0.51%)高于非言语组(31.5%±5.55%),差异有统计学意义(P<0.001);在高级声音感知、言语能力和社会交流方面言语组得分高于非言语组(P<0.05),在基本声音感知、自信心及活动能力方面两组得分差异无统计学意义(P>0.05).结论 语前聋青少年人工耳蜗植入术后生活质量可获得明显改善,术前的交流方式可影响术后的康复效果,术前使用言语交流的患者术后可以获得更好的生活质量.     

低年龄段语前聋儿童人工耳蜗植入后汉语声调识别变化的分析

目的:探讨低年龄段经人工耳蜗植入的语前聋儿童经过开机一段时间后声调识别的变化特点。方法:选择29例已经接受人工耳蜗植入的低年龄语前聋儿童,按植入时年龄分为2组,即A组:3.0~4.5岁,B组:5.0~6.5岁,植入后平均开机时间为1.5~2.0年。采用聋康系统的《聋儿听觉言语康复评估词表》中主要反映声调识别的相应评估内容进行封闭项测试。结果:A组:同音单音节声调识别率为(63.00±16.75)%,双音节声调识别率为(75.60±11.18)%,单音节词识别率为(72.38±11.39)%。B组:同音单音节声调识别率为(49.46±13.91)%,双音节声调识别为(64.71±9.64)%,单音节词识别率为(55.71±8.59)%。所有正确识别率结果均大于机会水平。人工耳蜗植入后不同年龄组患儿有关声调识别的三项测试内容,低年龄组患儿均好于高年龄组,结果均差异有统计学意义。结论:对于语前聋行人工耳蜗植入的低年龄儿童,植入时年龄仍是影响植入后声调识别的重要因素之一,而在更能反映汉语声、韵、调特点的单音节词中差异更为明显,因此植入年龄是术后汉语学习的重要影响因素之一。     

语后聋长期全聋耳的人工耳蜗植入

目的 探讨语后聋长期全聋耳的人工耳蜗植入术后效果.方法 双侧听力下降时间不同步、双侧耳聋程度不一致的语后聋患者4例,对重度聋时间较长(均>10年)、耳聋程度较重侧进行植入人工耳蜗,分别在开机后6个月、12个月,使用心理物理学测试(T/C值),术后声场内最佳助听条件下言语频率平均听阈(pure-tonethreshold average,PTA).安静及噪声环境巾的言语识别率(HINT句表),单音节词识别率(HOPE词表),汉语声调识别(MESP),听觉行为分级标准(CAP),成人生活质量调奁问卷等评价指标,评价其术后听觉言语康复效果.结果 4例受试者在开机半年至一年内均达到了较为理想的康复效果,PTA接近或达到正常水平;安静环境中的言语识别率平均达到90%以上,噪声环境中平均达到70%;植入者可以很好地识别汉语声调;人工耳蜗为植入者带来了较高的社会效益.患者对人工耳蜗的植入效果均表示满意.结论 4例受试者都选择重度聋时间较长侧作为人工耳蜗植入侧,开机后均在较短时间内获得了良好的听觉言语康复效果,充分发挥了人工耳蜗的功能和优势的同时.听力相对较好侧耳还町继续佩戴助听器,保留了患者双耳聆听和日后接收其它治疗的机会,最大限度地为患者创造了最佳聆听条件.     

人工耳蜗与助听器对儿童听觉言语能力提升的对比研究

目的：探讨植入人工耳蜗儿童和配戴助听器儿童在语音识别、声调识别及语音清晰度上是否存在差异,以期为助听器及人工耳蜗术后康复提供参考依据。方法选取55名听障儿童,其中助听器组25名,人工耳蜗组30名;采用听觉语言能力评估词表进行评估;利用SPSS 16.0对评估结果进行统计分析。结果听障儿童的韵母识别率显著高于声母识别率(t=3.505,P=0.001);助听器组韵母识别率显著高于声母识别率（t=3.672,P=0.001）;人工耳蜗组韵母识别率与声母识别率无显著性差异（t=1.517,P=0.135）;人工耳蜗组的声母识别显著高于助听器组（t=3.508,P=0.01）;两组儿童的韵母识别、双音节词声调识别及语音清晰度之间无显著差异(均P>0.05);人工耳蜗组和助听器组的语音清晰度变异系数均大于20%,离散程度较大。结论听障儿童的康复教学应重视声母识别训练,同时关注个体之间的差异。     

人工耳蜗植入手术前后听觉言语功能康复效果比较

目的对接受人工耳蜗植入的患儿行术前、术后助听效果比较,探讨人工耳蜗植入后的康复效果。方法对18例（18耳）接受人工耳蜗植入的患儿行术前、术后助听听阈评估、听觉功能评估及言语康复能力评估并进行比较,分析人工耳蜗植入后对声音感知、言语识别、言语发展的影响。结果18耳术前平均助听听阈为63dBHL,人工耳蜗植入听力重建后声场测试平均助听听阈为38dBHL,音频感受补偿范围250～4000Hz都能进入言语香蕉图,为其听辨言语声提供了极大的可能性。术后言语识别率明显提高。18例中11例术前无言语能力的患儿,术后平均的言语能力为2岁水平;7例术前平均语言能力为1.7岁,术后平均语言能力达到2.8岁。本文中3～4岁人工耳蜗植入的患儿,经过系统康复训练,言语发展明显提高。结论对6岁以下的语前聋、智力发育正常的聋儿,人工耳蜗植入后经过科学、系统的康复训练,听觉和言语能力都能得到不同程度的提高。     

Implementation and preliminary evaluation of ‘C-tone’: A novel algorithm to improve lexical tone recognition in Mandarin-speaking cochlear implant users

Objectives: Because of limited spectral resolution, Mandarin-speaking cochlear implant (CI) users have difficulty perceiving fundamental frequency (F0) cues that are important to lexical tone recognition. To improve Mandarin tone recognition in CI users, we implemented and evaluated a novel real-time algorithm (C-tone) to enhance the amplitude contour, which is strongly correlated with the F0 contour.

Methods: The C-tone algorithm was implemented in clinical processors and evaluated in eight users of the Nurotron NSP-60 CI system. Subjects were given 2 weeks of experience with C-tone. Recognition of Chinese tones, monosyllables, and disyllables in quiet was measured with and without the C-tone algorithm. Subjective quality ratings were also obtained for C-tone.

Results: After 2 weeks of experience with C-tone, there were small but significant improvements in recognition of lexical tones, monosyllables, and disyllables (P?Discussion: The real-time C-tone algorithm provided small but significant improvements for speech performance in quiet with no change in sound quality. Pre-processing algorithms to reduce noise and better real-time F0 extraction would improve the benefits of C-tone in complex listening environments.

Conclusions: Chinese CI users’ speech recognition in quiet can be significantly improved by modifying the amplitude contour to better resemble the F0 contour.     

汉语普通话人工耳蜗使用者对声调识别的分析研究

目的 初步确定人工耳蜗使用者声调感知的特点,并进行分析研究.方法 利用自主开发的噪声下声调识别测试材料(tone identification in noise test,TINT)在Speech Performance测试平台的控制下对20例母语为汉语普通话人工耳蜗使用者声调识别能力进行评估,获得各声调识别成绩以及声调识别混淆矩阵.采用χ2检验(chi-square test)对本组人工耳蜗使用者汉语声调识别成绩差异进行统计学分析.结果 ①本组人工耳蜗使用者的汉语普通话声调识别总成绩(百分制得分)分布48.75%~98.75%,平均成绩(76.38±17.29)%;②各声识别成绩平均值差异显著(χ2=2358.357,P<0.01),由高到低分别为T3(85.75%)>T4(85.25%)>T1(69.75%)>T2(64.75%),即本组人工耳蜗植入者感知T3、T4较为容易、感知T1、T2较为困难;③声调识别混淆矩阵提示T2(35.35%)、T1(30.25%)混淆度明显高于T4(14.75%)、T3(14.25%),并且各个声调之间的混淆趋势不同,T1易被混淆为T2(18.25%)、T2易被混淆为T3(24.00%).结论 时域特性明显的声调更易被人工耳蜗群体识别,因此应根据声调感知难易程度制定针对性的声调康复训练方案,综合利用听觉信息和视觉信息改善声调,特别是一声、二声的识别能力.     

Results using the OPAL strategy in Mandarin speaking cochlear implant recipients

Abstract

Objective: To evaluate the effectiveness of an experimental pitch-coding strategy for improving recognition of Mandarin lexical tone in cochlear implant (CI) recipients. Design: Adult CI recipients were tested on recognition of Mandarin tones in quiet and speech-shaped noise at a signal-to-noise ratio of?+10?dB; Mandarin sentence speech-reception threshold (SRT) in speech-shaped noise; and pitch discrimination of synthetic complex-harmonic tones in quiet. Two versions of the experimental strategy were examined: (OPAL) linear (1:1) mapping of fundamental frequency (F0) to the coded modulation rate; and (OPAL+) transposed mapping of high F0s to a lower coded rate. Outcomes were compared to results using the clinical ACE? strategy. Study sample: Five Mandarin speaking users of Nucleus® cochlear implants. Results: A small but significant benefit in recognition of lexical tones was observed using OPAL compared to ACE in noise, but not in quiet, and not for OPAL+?compared to ACE or OPAL in quiet or noise. Sentence SRTs were significantly better using OPAL+?and comparable using OPAL to those using ACE. No differences in pitch discrimination thresholds were observed across strategies. Conclusions: OPAL can provide benefits to Mandarin lexical tone recognition in moderately noisy conditions and preserve perception of Mandarin sentences in challenging noise conditions.     

Does music perception have an impact on quality of life following cochlear implantation?

CONCLUSION: Despite the decrease in listening habits, about half of the patients still enjoy music post implantation. Better quality of sound through the implant improves music enjoyment and contributes to achievement of better postoperative quality of life (QOL). OBJECTIVES: To evaluate music perception and enjoyment in cochlear implant (CI) users, and to assess their influence on QOL. MATERIALS AND METHODS: Sixty-five post-lingually deaf CI recipients were enrolled in this study. A musical questionnaire evaluated musical background, listening habits, and quality of musical sound through the CI. The validated Glasgow Benefit Inventory (GBI) was used to quantify changes in QOL. RESULTS: Fifty-two patients answered the questionnaires. Listening habits (music enjoyment and hours spent listening to music per week) significantly decreased following implantation when compared with the same parameters before deafness. Nevertheless, 52% of the patients enjoyed music post implantation. The quality of musical sound was rated >50 (0-100 scale) for the adjective pairs 'like-dislike', 'sounds like music-doesn't sound like music' and 'natural-mechanical' by most users. Med-el device users obtained better scores in the adjective pair 'sounds like music-doesn't sound like music' than Cochlear device users. Recipients rating higher scores for quality of sound enjoyed music post implantation and had higher total GBI scores than those rating lower scores.     

Pitch and lexical tone perception of bilingual English–Mandarin-speaking cochlear implant recipients,hearing aid users,and normally hearing listeners

Abstract

Objectives

The purpose of this current study was to investigate whether pitch, lexical tone, and/or speech-in-noise perception were significantly correlated for Singaporean teenagers or adults who spoke both Mandarin and English.

Methods

Thirty-three normal hearing or near-normal hearing listeners who did not use a hearing device (NNH group), eight postlingually deafened cochlear implant (CI) recipients (CI group), and three postlingually deafened bilateral hearing aid (HA) users (HA group) were recruited. All participants were bilingual Mandarin–English-speaking Singaporean residents. Participants were assessed on tests of pitch-ranking, lexical tone perception, and speech-in-noise.

Results

The NNH group scored significantly better than the CI group for all tests and subtests. There were no significant differences for the pitch test between the HA group and either the CI or NNH group. However, HA users scored significantly better than the CI group, and more aligned with the NNH group's scores for both the lexical tone and Mandarin speech-in-noise test. There were highly significant moderate positive correlations between all three tests.

Discussion

Overall, the performance of the CI users in this study indicates that CI recipients still struggle on pitch-related auditory perception tasks. Additionally, although the test scores from the HA users were better than the CI recipients, they were not as good as the NNH listeners. The significant moderate correlations between all three tests indicate that there is at least some degree of overlap in the skills required to accurately perceive these stimuli.

Conclusion

The overall results suggest that CI users, and to a lesser extent HA users, still struggle with complex auditory perceptual tasks, particularly when it requires the perception of pitch. However, it may be possible that training one of these skills (e.g. musical pitch) may then generalize to other tasks (e.g. lexical tone and/or speech-in-noise). This is important for counseling, as well as for planning effective rehabilitation programs.     

Correlations Between Pitch and Phoneme Perception in Cochlear Implant Users and Their Normal Hearing Peers

This study examined correlations between pitch and phoneme perception for nine cochlear implant users and nine normal hearing listeners. Pure tone frequency discrimination thresholds were measured for frequencies of 500, 1000, and 2000 Hz. Complex tone fundamental frequency (F0) discrimination thresholds were measured for F0s of 110, 220, and 440 Hz. The effects of amplitude and frequency roving were measured under the rationale that individuals who are robust to such perturbations would perform better on phoneme perception measures. Phoneme identification was measured using consonant and vowel materials in quiet, in stationary speech-shaped noise (SSN), in spectrally notched SSN, and in temporally gated SSN. Cochlear implant pure tone frequency discrimination thresholds ranged between 1.5 and 9.9 %, while cochlear implant complex tone F0 discrimination thresholds ranged between 2.6 and 28.5 %. On average, cochlear implant users had 5.3 dB of masking release for consonants and 8.4 dB of masking release for vowels when measured in temporally gated SSN compared to stationary SSN. Correlations with phoneme identification measures were generally higher for complex tone discrimination measures than for pure tone discrimination measures. Correlations with phoneme identification measures were also generally higher for pitch perception measures that included amplitude and frequency roving. The strongest correlations were observed for measures of complex tone F0 discrimination with phoneme identification in temporally gated SSN. The results of this study suggest that musical training or signal processing strategies that improve F0 discrimination should improve consonant identification in fluctuating noise.     

Cantonese tone perception ability of cochlear implant children in comparison with normal-hearing children

BACKGROUND AND OBJECTIVE: Cantonese is a tone language. A change in the fundamental frequency pattern within the same phonemic segment causes a change in the lexical meaning. The present study examined the Cantonese tone perception ability of cochlear implant children in comparison with normal-hearing children. It was hypothesized that cochlear implant children follow a similar pattern of tone perception development, as do normal children. METHOD: 225 normal-hearing and 15 hearing-impaired children with cochlear implants were recruited. The high level (tone 1), high rising (tone 2) and low falling (tone 4) were the target tones examined. The three tones were arranged into tone pairs for identification. Each pair shared exactly the same segmental information but differed only in tones (e.g. /sy/ in tones 1 and 2 meaning 'book' and 'mouse', respectively). Subjects were required to point to the corresponding pictures after the live voice presentations. RESULTS: for each tone pair, each subject was awarded a score representing the proportion of stimuli pairs that were correctly discriminated by the subject. The average scores in the normal-hearing and hearing-impaired groups were 0.92 and 0.64, respectively. The normal group had the lowest average score in tone 2/tone 4 (0.87) while the hearing-impaired group performed the worst in tone 1/tone 2 (0.53) perception between the three tone contrasts. CONCLUSIONS: the normal-hearing group performed significantly better than the hearing-impaired group in basic Cantonese tone perception. The pattern of tone perception development of cochlear implant children did not seem to follow that of normal children. Contributing factors on the tone perception performance of the cochlear implant children were subject's age, duration of special training, and durations of wearing the hearing aid and the cochlear implant.     

Does music perception have an impact on quality of life following cochlear implantation?

Conclusion. Despite the decrease in listening habits, about half of the patients still enjoy music post implantation. Better quality of sound through the implant improves music enjoyment and contributes to achievement of better postoperative quality of life (QOL). Objectives. To evaluate music perception and enjoyment in cochlear implant (CI) users, and to assess their influence on QOL. Materials and methods. Sixty-five post-lingually deaf CI recipients were enrolled in this study. A musical questionnaire evaluated musical background, listening habits, and quality of musical sound through the CI. The validated Glasgow Benefit Inventory (GBI) was used to quantify changes in QOL. Results. Fifty-two patients answered the questionnaires. Listening habits (music enjoyment and hours spent listening to music per week) significantly decreased following implantation when compared with the same parameters before deafness. Nevertheless, 52% of the patients enjoyed music post implantation. The quality of musical sound was rated >50 (0–100 scale) for the adjective pairs ‘like-dislike’, ‘sounds like music-doesn't sound like music’ and ‘natural-mechanical’ by most users. Med-el device users obtained better scores in the adjective pair ‘sounds like music-doesn't sound like music’ than Cochlear device users. Recipients rating higher scores for quality of sound enjoyed music post implantation and had higher total GBI scores than those rating lower scores.