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Acoustic Analysis of Fricatives /s/ and /ʃ/ and Affricate /ʧ/ in Persian-Speaking Cochlear-Implanted Children and Normal-Hearing Peers 波斯语人工耳蜗植入儿童和正常听力同龄人的摩擦音 /s/ 和 /ʃ/ 以及副音 /ʧ/ 的声学分析
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15504
R. Roohparvar, Mahin Karimabadi, Shima Ghahari, Mogaddameh Mirzaee
Background and Aim: Hearing-impaired individuals have difficulty comprehending and producing speech sounds. Cochlear implantation is used to augment hearing. The present study aims to compare the production of fricatives /s/ and /ʃ/ and affricate /ʧ/ by Persian- speaking Cochlear-Implanted (CI) and Normal-Hearing (NH) children Methods: Fifteen Persian-speaking NH children and 15 Persian-speaking CI children, matched for age, gender, and general health conditions, were included in the study. The stimuli included two voiceless Persian fricatives /s/ and /ʃ/ and one voiceless Persian affricate   /ʧ/ along with the open front vowel /æ/ in three Consonant-Vowel (CV), Consonant-Vowel- Consonant (CVC), and Vowel-Consonant (VC) contexts (/sæ/, /æsæ/, /æs/, /ʃæ/, /æʃæ/, /æʃ/,/ʧæ/, /æʧæ/, /æʧ/). After recording all utterances, Praat software was used to measure the friction duration, rise time, and spectral peak of the consonants Results: The CI children could not distinguish between /ʃ/ and /ʧ/ and produced affricate /ʧ/ as an allophone of /ʃ/ (p=0.01). Moreover, distinguishing between two fricatives /s/  and /ʃ/ was difficult for both groups. While NH children slightly treated these two sounds differently, the CI group produced fricative /s/ as an allophone of /ʃ/ (p=0.02). The rise time of /ʃ/ was longer in the NH children, except for /ʧæ/, where the CI children had a longer rise time. Conclusion: The speech of CI children is different in producing /s/, /ʃ/, and /ʧ/ from their NH peers. The results can help speech therapists, clinical linguists, and application designers focus on speech sounds that are challenging for CI children to produce. Keywords: Cochlear implant; speech production; fricatives; affricate
背景和目的:听力受损者在理解和发出语音方面存在困难。人工耳蜗植入术可用于增强听力。本研究旨在比较波斯语人工耳蜗植入儿童(CI)和正常听力儿童(NH)发出摩擦音/s/和/ʃ/以及副音/ʧ/的情况:研究对象包括 15 名讲波斯语的 NH 儿童和 15 名讲波斯语的 CI 儿童,他们的年龄、性别和一般健康状况相匹配。刺激物包括两个无声波斯摩擦音 /s/ 和 /ʃ/,一个无声波斯辅音 /ʧ/,以及三个辅音-元音(CV)中的开放前元音 /æ/、辅音-元音-辅音 (CVC) 和元音-辅音 (VC) 上下文(/sæ/、/æsæ/、/æs/、/ʃæ/、/æʃæ/、/æʃ/、/ʧæ/、/æʧæ/、/æʧ/)。录制所有语音后,使用 Praat 软件测量辅音的摩擦持续时间、上升时间和频谱峰值:CI儿童不能区分/ʃ/和/ʧ/,并发出作为/ʃ/的异音的/ʧ/(p=0.01)。此外,两组儿童都很难区分/s/和/ʃ/这两个摩擦音。虽然 NH 儿童对这两个音的处理略有不同,但 CI 组儿童发出的摩擦音 /s/ 是 /ʃ/ 的异音(p=0.02)。除了/ʧæ/的上升时间较长以外,正常儿童的/ʃ/的上升时间较长,而CI儿童的/ʧæ/的上升时间较长。结论CI 儿童在发音 /s/、/ʃ/ 和 /ʧ/ 时与正常儿童不同。研究结果有助于语言治疗师、临床语言学家和应用软件设计者关注 CI 儿童难以发出的语音。关键词人工耳蜗;语音生成;摩擦音;副元音
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引用次数: 0
Is It Possible to Use the Speech-Evoked Auditory Brainstem Response Test During Sleep as It Is Used During Wakefulness? 睡眠时是否可以像清醒时一样使用言语诱发听觉脑干反应测试?
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15503
Ahmad Khoshkhou, Moslem Shaabani, Enayatollah Bakhshi, Mohanna Javanbakht
Background and Aim: It is important to know how much are the auditory electrophysi- ological tests affected by sleep and wakefulness to be employed in different situations. This problem is more important for the speech-evoked Auditory Brainstem Response (speech- ABR) test that is affected by higher-level processing. This study aimed to compare the results of the speech-ABR test between wakefulness and sleep states. Methods: Sixteen young male adults (aged 20–28 years) with normal hearing participated in this study. The speech-ABR to the /da/ syllable was recorded during wakefulness and sleep. Electroencephalography (EEG) and behavioral tests (eyes position, body movements, etc.) were monitored during the test time to confirm the sleep state. Results: The speech-ABR test parameters showed significant changes during sleep compared to wakefulness (latencies of waves V and A were longer and the amplitudes of waves V and A, the slope of V-A complex, and the spectral magnitude of F1 were lower). However, the spectral magnitude of higher frequencies was not significantly different.     In addition, no significant statistical difference was observed in speech-ABR parameters between right and left ears. Conclusion: Although the speech-ABR originates from brainstem centers, unlike conventional click-evoked ABR, it is affected by sleep as it is affected by the higher-level auditory processing functions. Although, further studies are needed. However, our study opens the way for many applied auditory studies about the possibility to use speech-ABR for auditory processing assessments in sleep state of different population groups, such as neonates. Keywords: Auditory brainstem response; speech acoustics; sleep; electroencephalography  
背景和目的:了解听觉电生理测试在不同情况下使用时受睡眠和清醒的影响程度非常重要。对于受高级处理影响的言语诱发听觉脑干反应(言语-ABR)测试来说,这个问题更为重要。本研究旨在比较清醒和睡眠状态下的言语-ABR测试结果。研究方法16 名听力正常的年轻男性(20-28 岁)参加了本研究。记录了清醒和睡眠状态下对/da/音节的言语-ABR测试结果。在测试期间监测脑电图(EEG)和行为测试(眼睛位置、身体运动等),以确认睡眠状态。结果与清醒状态相比,睡眠状态下的语音-ABR 测试参数发生了显著变化(V 波和 A 波的潜伏期延长,V 波和 A 波的振幅、V-A 复合波的斜率以及 F1 的频谱幅度降低)。然而,较高频率的频谱幅度没有显著差异。 此外,左右耳的语音-ABR 参数也没有明显的统计学差异。结论虽然语音-ABR 源自脑干中枢,但与传统的点击诱发 ABR 不同,它受到睡眠的影响,因为它受到高级听觉处理功能的影响。虽然还需要进一步研究。然而,我们的研究为许多听觉应用研究开辟了道路,使人们有可能使用语音-ABR 对不同人群(如新生儿)的睡眠状态进行听觉处理评估。关键词听性脑干反应;言语声学;睡眠;脑电图
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引用次数: 0
The Role of Attention Modulation and Its Neurophysiological Mechanisms in Tinnitus Management: A Review 注意力调节及其神经生理学机制在耳鸣治疗中的作用:综述
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15499
Hossein Namvar Arefi, F. Jarollahi, Samer Mohammad Mohsen, S. Jalaie
Background and Aim: Tinnitus, characterized by the perception of sound without the presence of an external auditory stimulus, can profoundly affect the quality of life. This review study aims to assess the role of attention modulation in tinnitus management and investigate the neurophysiological mechanism of attention and its interaction with emotional processing in patients with tinnitus. Recent Findings: The studies revealed differences in the function of attentional networks among individuals with tinnitus. The studies showed the positive impact of various techniques for attention modulation through direct attention training or indirect mechanisms influencing attention. These techniques could modify attentional biases, enhance attention control, and alleviate tinnitus-related distress. Conclusion: The results of studies suggest the potential role of attention modulation in tinnitus management. By targeting attentional processes, researchers and clinicians can provide more effective interventions for individuals with tinnitus. However, there is a  need for further investigation to optimize the intervention protocols by collaboration between researchers, clinicians, and individuals with tinnitus to achieve success in tinnitus management. Background and Aim: Tinnitus, characterized by the perception of sound without the presence of an external auditory stimulus, can profoundly affect the quality of life. This review study aims to assess the role of attention modulation in tinnitus management and investigate the neurophysiological mechanism of attention and its interaction with emotional processing in patients with tinnitus. Recent Findings: The studies revealed differences in the function of attentional networks among individuals with tinnitus. The studies showed the positive impact of various techniques for attention modulation through direct attention training or indirect mechanisms influencing attention. These techniques could modify attentional biases, enhance attention control, and alleviate tinnitus-related distress. Conclusion: The results of studies suggest the potential role of attention modulation in tinnitus management. By targeting attentional processes, researchers and clinicians can provide more effective interventions for individuals with tinnitus. However, there is a  need for further investigation to optimize the intervention protocols by collaboration between researchers, clinicians, and individuals with tinnitus to achieve success in tinnitus management. Keywords: Tinnitus; attention; tinnitus management; neurophysiological mechanism; attention training
背景和目的:耳鸣的特点是在没有外部听觉刺激的情况下感知声音,它会严重影响生活质量。本综述研究旨在评估注意力调节在耳鸣治疗中的作用,并研究耳鸣患者注意力的神经生理机制及其与情绪处理的相互作用。最新发现研究发现耳鸣患者的注意网络功能存在差异。研究表明,通过直接注意力训练或影响注意力的间接机制来调节注意力的各种技术具有积极影响。这些技术可以改变注意力偏差,加强注意力控制,减轻与耳鸣相关的困扰。结论研究结果表明,注意力调节在耳鸣治疗中具有潜在作用。通过针对注意过程的研究,研究人员和临床医生可以为耳鸣患者提供更有效的干预措施。然而,研究人员、临床医生和耳鸣患者还需要进一步调查,通过合作优化干预方案,以实现耳鸣管理的成功。背景和目的:耳鸣的特点是在没有外部听觉刺激的情况下感知声音,会严重影响生活质量。本综述研究旨在评估注意力调节在耳鸣管理中的作用,并调查耳鸣患者注意力的神经生理机制及其与情绪处理的相互作用。最新发现研究发现耳鸣患者的注意网络功能存在差异。研究表明,通过直接注意力训练或影响注意力的间接机制来调节注意力的各种技术具有积极影响。这些技术可以改变注意力偏差,加强注意力控制,减轻与耳鸣相关的困扰。结论研究结果表明,注意力调节在耳鸣治疗中具有潜在作用。通过针对注意过程的研究,研究人员和临床医生可以为耳鸣患者提供更有效的干预措施。然而,研究人员、临床医生和耳鸣患者之间还需要进一步合作,优化干预方案,以取得耳鸣治疗的成功。关键词耳鸣;注意力;耳鸣管理;神经生理机制;注意力训练
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引用次数: 0
Development of Persian Monosyllabic and Disyllabic Words for Auditory Test of Adults and Evaluation of Their Face Validity Using Psychometric Function 开发用于成人听觉测试的波斯语单音节词和双音节词,并利用心理测量功能评估其面貌有效性
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15501
Haleh Hassani, Mohsen Ahadi, F. Jarollahi, S. Jalaie
Background and Aim: The utilization of speech materials in audiological assessments has faced challenges due to a lack of standardization and insufficient consideration of acoustic factors. This study aimed to develop a set of psychometrically validated monosyllabic and disyllabic words in Persian for use in auditory tests. Methods: This cross-sectional study involved collecting the most frequently used one- and two-syllable words from Persian dictionaries. A panel of experts evaluated the selected words using a 4-point Likert scale. Based on their recommendations, 382 monosyllabic words and 150 disyllabic words met the established criteria. Male and female talkers recorded these words, which were then presented in a random order to 30 young adults with normal hearing (aged 18–30 years). The presentation intensity levels ranged from 0 to 48 dB HL with 8 dB increments. Logistic regression was used to determine the psychometric properties of the words. Results: As the intensity level increased, the percentage of word recognition scores also increased, reaching 100% at an intensity level of 48 dB HL. For Persian monosyllabic words, the mean psychometric slope was 0.29 %/dB for male talkers and 0.25 %/dB for female talkers. The corresponding slopes for Persian disyllabic words were 0.23 %/dB and 0.21 %/dB, respectively. Conclusion: This study successfully developed 382 monosyllabic words and 150 disyllabic words in Persian with comparable psychometric properties. These words can be utilized in auditory tests for Iranian adults.   Keywords: Monosyllabic words; disyllabic words; psychometric‏ ‏function; logistic regression; Persian speech materials
背景和目的:由于缺乏标准化和对声学因素考虑不足,在听力评估中使用语音材料一直面临挑战。本研究旨在开发一套经过心理测试验证的波斯语单音节和双音节单词,用于听觉测试。研究方法这项横向研究从波斯语词典中收集了最常用的单音节和双音节词。专家小组采用李克特四点量表对所选单词进行了评估。根据他们的建议,382 个单音节词和 150 个双音节词符合既定标准。男性和女性说话者将这些单词记录下来,然后以随机顺序呈现给 30 名听力正常的年轻人(18-30 岁)。呈现强度水平从 0 到 48 dB HL,递增 8 dB。逻辑回归用于确定词语的心理测量特性。结果显示随着强度水平的增加,单词识别得分的百分比也在增加,在强度水平为 48 dB HL 时达到 100%。对于波斯语单音节词,男性说话者的平均心理测量斜率为 0.29 %/dB,女性说话者为 0.25 %/dB。波斯语双音节词的相应斜率分别为 0.23 %/dB 和 0.21 %/dB。结论本研究成功开发了 382 个单音节波斯语单词和 150 个双音节波斯语单词,其心理测量特性相当。这些单词可用于伊朗成年人的听觉测试。 关键词单音节词;双音节词;心理测量功能;逻辑回归;波斯语语音材料
{"title":"Development of Persian Monosyllabic and Disyllabic Words for Auditory Test of Adults and Evaluation of Their Face Validity Using Psychometric Function","authors":"Haleh Hassani, Mohsen Ahadi, F. Jarollahi, S. Jalaie","doi":"10.18502/avr.v33i3.15501","DOIUrl":"https://doi.org/10.18502/avr.v33i3.15501","url":null,"abstract":"Background and Aim: The utilization of speech materials in audiological assessments has faced challenges due to a lack of standardization and insufficient consideration of acoustic factors. This study aimed to develop a set of psychometrically validated monosyllabic and disyllabic words in Persian for use in auditory tests. \u0000Methods: This cross-sectional study involved collecting the most frequently used one- and two-syllable words from Persian dictionaries. A panel of experts evaluated the selected words using a 4-point Likert scale. Based on their recommendations, 382 monosyllabic words and 150 disyllabic words met the established criteria. Male and female talkers recorded these words, which were then presented in a random order to 30 young adults with normal hearing (aged 18–30 years). The presentation intensity levels ranged from 0 to 48 dB HL with 8 dB increments. Logistic regression was used to determine the psychometric properties of the words. \u0000Results: As the intensity level increased, the percentage of word recognition scores also increased, reaching 100% at an intensity level of 48 dB HL. For Persian monosyllabic words, the mean psychometric slope was 0.29 %/dB for male talkers and 0.25 %/dB for female talkers. The corresponding slopes for Persian disyllabic words were 0.23 %/dB and 0.21 %/dB, respectively. \u0000Conclusion: This study successfully developed 382 monosyllabic words and 150 disyllabic words in Persian with comparable psychometric properties. These words can be utilized in auditory tests for Iranian adults. \u0000  \u0000Keywords: Monosyllabic words; disyllabic words; psychometric‏ ‏function; logistic regression; Persian speech materials","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141117607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Frequency of Herpes Simplex Virus Types 1 and 2 and Cytomegalovirus in Perilymph and Peripheral Blood Samples of Cochlear-Implanted Children Using the Polymerase Chain Reaction Method 使用聚合酶链反应法检测人工耳蜗植入儿童耳道和外周血样本中 1 型和 2 型单纯疱疹病毒以及巨细胞病毒的频率
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15500
Farhad Farahani, Majid Vafaei Rad, H. Naderifar, Elnaz Shariatpanahi, R. Najafi-Vosough, F. Jalilian
Background and Aim: Inner ear infection with some viruses may be one of the possible causes of Sensorineural Hearing Loss (SNHL). This study aims to determine the frequency of Herpes Simplex Virus 1 and 2 (HSV-1, HSV-2) and Cytomegalovirus (CMV) in perilymph and peripheral blood samples of cochlear-implanted children. Methods: In this cross-sectional study, 30 children with severe-to-profound SNHL (aged 1.1–5 years) underwent cochlear implantation surgery. During surgery, their perilymph  and peripheral blood samples were collected. The samples were analyzed separately for the presence of herpes HSV-1, HSV-2, and CMV by real-time Polymerase Chain Reaction (PCR) method. The load of IgG and IgM antibodies against these viruses was determined using the Enzyme-Linked Immunosorbent Assay (ELISA) method. Results: The frequency of CMV in perilymph samples was 16.7% (5 patients) and in peripheral blood samples was 3.3% (1 patient). The IgG antibody against CMV and HSV- 1 was positive in 80% and 46.7% of the patients, respectively. The IgM antibody against CMV was positive in 10%. The mean IgM serum antibody load against HSV-1, HSV-2, and CMV was 2.70, 1.70, and 5.47, respectively, and the mean IgG antibody load against these viruses was 56.07, 2.50, and 23.67, respectively. Conclusion: The IgG test is positive in cochlear-implanted children with CMV in their perilymph samples, and the CMV genome is not present in their peripheral blood. This may indicate the previous presence of this virus in the ear and its role in hearing loss.   Keywords: Sensorineural hearing loss; perilymph fluid; cytomegalovirus; herpes simplex
背景和目的:内耳感染某些病毒可能是导致感音神经性听力损失(SNHL)的原因之一。本研究旨在确定单纯疱疹病毒 1 和 2(HSV-1、HSV-2)以及巨细胞病毒(CMV)在人工耳蜗植入儿童的耳周液和外周血样本中的感染频率。研究方法在这项横断面研究中,30 名患有重度至疑似 SNHL 的儿童(1.1-5 岁)接受了人工耳蜗植入手术。手术期间,采集了他们的虹膜和外周血样本。采用实时聚合酶链反应(PCR)方法分别分析样本中是否存在疱疹 HSV-1、HSV-2 和 CMV。采用酶联免疫吸附试验(ELISA)法测定这些病毒的 IgG 和 IgM 抗体的含量。结果CMV在淋巴管样本中的检出率为16.7%(5名患者),在外周血样本中的检出率为3.3%(1名患者)。分别有 80% 和 46.7% 的患者的 CMV 和 HSV- 1 IgG 抗体呈阳性。CMV 的 IgM 抗体阳性率为 10%。针对 HSV-1、HSV-2 和 CMV 的平均 IgM 血清抗体量分别为 2.70、1.70 和 5.47,针对这些病毒的平均 IgG 抗体量分别为 56.07、2.50 和 23.67。结论人工耳蜗植入儿童的耳周样本中存在 CMV,IgG 检测呈阳性,而外周血中不存在 CMV 基因组。这可能表明耳内曾存在这种病毒,并在听力损失中起了作用。 关键词感音神经性听力损失;耳周液;巨细胞病毒;单纯疱疹病毒
{"title":"Frequency of Herpes Simplex Virus Types 1 and 2 and Cytomegalovirus in Perilymph and Peripheral Blood Samples of Cochlear-Implanted Children Using the Polymerase Chain Reaction Method","authors":"Farhad Farahani, Majid Vafaei Rad, H. Naderifar, Elnaz Shariatpanahi, R. Najafi-Vosough, F. Jalilian","doi":"10.18502/avr.v33i3.15500","DOIUrl":"https://doi.org/10.18502/avr.v33i3.15500","url":null,"abstract":"Background and Aim: Inner ear infection with some viruses may be one of the possible causes of Sensorineural Hearing Loss (SNHL). This study aims to determine the frequency of Herpes Simplex Virus 1 and 2 (HSV-1, HSV-2) and Cytomegalovirus (CMV) in perilymph and peripheral blood samples of cochlear-implanted children. \u0000Methods: In this cross-sectional study, 30 children with severe-to-profound SNHL (aged 1.1–5 years) underwent cochlear implantation surgery. During surgery, their perilymph  and peripheral blood samples were collected. The samples were analyzed separately for the presence of herpes HSV-1, HSV-2, and CMV by real-time Polymerase Chain Reaction (PCR) method. The load of IgG and IgM antibodies against these viruses was determined using the Enzyme-Linked Immunosorbent Assay (ELISA) method. \u0000Results: The frequency of CMV in perilymph samples was 16.7% (5 patients) and in peripheral blood samples was 3.3% (1 patient). The IgG antibody against CMV and HSV- 1 was positive in 80% and 46.7% of the patients, respectively. The IgM antibody against CMV was positive in 10%. The mean IgM serum antibody load against HSV-1, HSV-2, and CMV was 2.70, 1.70, and 5.47, respectively, and the mean IgG antibody load against these viruses was 56.07, 2.50, and 23.67, respectively. \u0000Conclusion: The IgG test is positive in cochlear-implanted children with CMV in their perilymph samples, and the CMV genome is not present in their peripheral blood. This may indicate the previous presence of this virus in the ear and its role in hearing loss. \u0000  \u0000Keywords: Sensorineural hearing loss; perilymph fluid; cytomegalovirus; herpes simplex","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141114904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Output Signal-to-Noise Ratio and Speech Perception in Noise: The Effect of Multichannel and Free-Channel Hearing Aids 噪声中的输出信噪比和言语感知:多通道和自由通道助听器的影响
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15507
Shubhaganga Dhrruvakumar, Vishal Kooknoor, Rakesh Chowkalli Veerabhadrappa
Background and Aim: The output Signal-to-Noise Ratio (SNR) is one of the essential factors in hearing aid benefits. There is limited evidence regarding SNR improvement     by the Channel-Free (CFHA) and Multi-Channel Hearing Aid (MCHA) and the speech understanding in noise through them. This study aimed to investigate the extent to which output SNR was modified by CFHA and MCHA processing and the variation in aided speech recognition abilities with a change in output SNR. Methods: Thirty-six participants aged 50–65 years were included. A chosen CFHA and MCHA were used to obtain the output SNR and sentence recognition in noise in four different processing algorithms (linear, linear+noise reduction, WDRC, WDRC+noise reduction). Hagerman’s phase inversion technique was used to measure the attenuation of noise and, in turn, to obtain the output SNR of the hearing aid. Results: In all hearing aid processing algorithms among those with normal hearing and people with hearing loss, the output of CFHA revealed higher attenuation values than that of MCHA. There was a significant effect of the hearing aids and processing algorithms in both normal and individuals with hearing impairment on the mean SNR. Further, multiple linear regression analysis results showed that whether the hearing is channel-free or multi- channel significantly predicted speech recognition scores, while output SNR and processing algorithms did not. Conclusion: The signal processing algorithms in CFHA had greater noise attenuation values, better output SNR, and speech recognition scores, showing an advantage over the modern MCHA among individuals with hearing impairment.   Keywords: Channel-free hearing aids; multi-channel hearing aids; sensorineural hearing loss; speech recognition
背景和目的:输出信噪比(SNR)是助听器效益的重要因素之一。关于无通道(CFHA)和多通道助听器(MCHA)对信噪比的改善以及通过它们在噪声中的言语理解能力,目前证据有限。本研究旨在调查 CFHA 和 MCHA 处理对输出信噪比的影响程度,以及输出信噪比变化对辅助语音识别能力的影响。研究方法研究对象包括 36 名 50-65 岁的参与者。在四种不同的处理算法(线性、线性+降噪、WDRC、WDRC+降噪)中,使用选定的 CFHA 和 MCHA 获得输出信噪比和噪声中的句子识别率。哈格曼相位反转技术用于测量噪声衰减,进而获得助听器的输出信噪比。结果:在听力正常者和听力损失者的所有助听器处理算法中,CFHA 的输出显示出比 MCHA 更高的衰减值。在听力正常者和听力受损者中,助听器和处理算法对平均信噪比有明显影响。此外,多元线性回归分析结果显示,听力是无信道还是多信道能显著预测语音识别得分,而输出信噪比和处理算法则不能。结论CFHA 的信号处理算法具有更大的噪声衰减值、更好的输出信噪比和语音识别得分,与现代 MCHA 相比,在听障人士中显示出优势。 关键词无通道助听器;多通道助听器;感音神经性听力损失;语音识别
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引用次数: 0
Is Acceptable Noise Level Affected by the Number of Competitive Talkers? An Implication of Informational Masking and Listening in Dips for Acceptable Noise Level Mechanism 可接受噪音水平受竞争性谈话者数量的影响吗?信息屏蔽和倾听对可接受噪音水平机制的影响
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15506
Mostafa Tavakoli, Hamid Jalilvand, Mohammad Ebrahim Mahdavi, Alireza Akbarzadeh Baghban
Background and Aim: The Acceptable Noise Level (ANL), which is an effective  clinical tool for quantitative assessment of noise tolerance, is affected by some known variables related to both subject and testing materials. The present study examined how the characteristics of different babble noises may affect the ANL results in normal adult listeners. Methods: Forty Persian listeners with normal hearing participated. In addition to typical ANL testing with 12-talker noise, the ANL was obtained in 8 different conditions varying in number of talkers from 2 to 10 in the babble noises presenting forward and backward. Results: There was a significantly lower ANL for 2-talker babble compared to 4, 8, 10, and 12-talker babble in both forward and backward noise conditions. With the increase in talkers in noise, the ANL becomes worse but reaches almost a plateau with more than 4 talkers in babble noise. There was a statistically significant difference between 2-talker forward and 2-talker backward noises, with no difference for the other conditions. Conclusion: This finding that the ANL is affected by the number of talkers in babble noise and by the forward and backward background noise suggests that informational masking and listening in dip mechanisms are involved in ANL for normal hearing people at least. Keywords: Acceptable noise level; speech babble noise; listening in dips; informational masking; energetic masking  
背景和目的:可接受噪音水平(ANL)是定量评估噪音耐受性的有效临床工具,但它会受到与受试者和测试材料有关的一些已知变量的影响。本研究探讨了不同咿呀声的特点会如何影响正常成年听者的可接受噪音水平结果。研究方法40 名听力正常的波斯听众参加了研究。除了使用 12 个说话者的典型 ANL 测试外,还在 8 种不同的条件下获得了 ANL,这些条件是在咿呀噪音中向前和向后呈现 2 到 10 个说话者。结果显示在正向和反向噪音条件下,与 4、8、10 和 12 人咿呀学语相比,2 人咿呀学语的 ANL 明显较低。随着噪音中说话者的增加,ANL 越来越低,但当咿呀噪音中的说话者超过 4 个时,ANL 几乎达到了平稳状态。在统计意义上,2 个说话者的前向噪音和 2 个说话者的后向噪音之间存在显著差异,而其他条件下则没有差异。结论ANL受咿呀学语噪声中说话者的数量以及前向和后向背景噪声的影响,这一发现表明,至少对于听力正常的人来说,信息掩蔽和倾听机制参与了ANL。关键词可接受噪声级;咿呀学语噪声;倾听;信息掩蔽;能量掩蔽
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引用次数: 0
Effect of Noisy Galvanic Vestibular Stimulation on Spatial Learning and Memory of Rats 噪声 Galvanic 前庭刺激对大鼠空间学习和记忆的影响
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15508
Bahareh Soufinia, Younes Lotfi, M. Mirshekar, Moslem Shaabani, Enayatollah Bakhshi
Background and Aim: Previous studies have shown promising findings on effectiveness of noisy Galvanic Vestibular Stimulation (nGVS) in various cognitive disorders. The connections of the vestibular system with the hippocampus has been proven. Here we investigated the effect of vestibular galvanic stimulation on the improvement of spatial learning and memory of rats. Methods: Twelve Wistar rats were randomly divided into control and nGVS groups. The nGVS group underwent 30-minute sessions of stimulation at sub-threshold levels for a duration of fourteen days. Following the intervention, both groups underwent assessments of cognitive indices through the Morris water maze task, hippocampal neuronal spike rate by Single-Unit Recording (SUR) and the concentrations of c-fos protein in the hippocampus were measured using ELISA device. Results: The nGVS group exhibited a significant difference compared to the control group in both the time taken to reach the target platform and the percentage of time spent in     the goal quarter during the Morris water maze test. The nGVS treatment significantly enhanced spike rate of hippocampal dentate gyrus (p<0.01) compared to the control group. Additionally, c-fos protein concentrations were increased in the nGVS (5.833) than the control group (4.126), (p<0.001). Conclusion: According to the obtained results, nGVS plays a role in improving spatial memory, and a longer duration of intervention is suggested to achieve more obvious improvement results.   Keywords: Galvanic vestibular stimulation; spatial cognition; single-unit recording; hippocampus; rat
背景和目的:以往的研究表明,噪声加尔凡尼前庭刺激(nGVS)对各种认知障碍的疗效令人鼓舞。前庭系统与海马体的联系已得到证实。在此,我们研究了前庭电流刺激对改善大鼠空间学习和记忆的影响。研究方法将 12 只 Wistar 大鼠随机分为对照组和 nGVS 组。nGVS 组接受 30 分钟的阈下刺激,为期 14 天。干预结束后,两组大鼠均接受了莫里斯水迷宫任务认知指数评估、单体记录海马神经元尖峰率评估,并使用 ELISA 装置测量了海马中 c-fos 蛋白的浓度。结果与对照组相比,nGVS组在莫里斯水迷宫测试中到达目标平台所需的时间和在目标区停留的时间百分比都有显著差异。与对照组相比,nGVS 治疗显著提高了海马齿状回的尖峰率(p<0.01)。此外,nGVS 组的 c-fos 蛋白浓度(5.833)比对照组(4.126)高(p<0.001)。结论根据所得结果,nGVS 对改善空间记忆有一定作用,建议延长干预时间,以取得更明显的改善效果。 关键词电前庭刺激;空间认知;单体记录;海马;大鼠
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引用次数: 0
Early Communication Skills Training for Infants and Toddlers with Cochlear ImplantEarly Communication Skills Training for Infants and Toddlers with Cochlear Implant 人工耳蜗婴幼儿早期交流技能培训人工耳蜗婴幼儿早期交流技能培训
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15502
Saeid Hassanzadeh, F. Nikkhoo
Background and Aim: Early communication skills in children with hearing loss depend on the quantity and quality of information received from parents. The present study aimed to investigate the effectiveness of early communication skills training in developing the communication skills of infants and toddlers with cochlear implants. Methods: To this end, 54 infants and toddlers at the age range of 8–24 months with sever to profound hearing loss fitted by Cochlear Implant (CI) with their mothers participated in this study. The experimental and wait list control groups had auditory verbal therapy as the main intervention after the CI; however, the experimental group received a systematic early communication skills program. All subjects were assessed using the Communication and Symbolic Behaviour Scales Developmental Profile as the pre-and post-tests. Results: Multivariate analysis of covariance indicated the effect of systematic training on the early communication development of subjects in intervention group. Conclusion: Teaching the parents how to interact with infants and toddlers with CI could improve the communication skills of the infants and therefore it’s recommended to be included in the auditory rehabilitation programs.
背景和目的:听力损失儿童的早期沟通技能取决于从父母那里获得的信息的数量和质量。本研究旨在调查早期沟通技能培训对培养人工耳蜗婴幼儿沟通技能的有效性。研究方法为此,54 名年龄介于 8-24 个月的重度至极重度听力损失婴幼儿与他们的母亲一起参加了本研究。实验组和候补对照组在植入人工耳蜗后以听觉言语治疗作为主要干预措施,而实验组则接受系统的早期沟通技能课程。所有受试者均使用 "沟通和符号行为量表发展概况 "作为前后测试。研究结果多变量协方差分析表明,系统训练对干预组受试者的早期沟通能力发展有影响。结论教导父母如何与使用 CI 的婴幼儿互动可提高婴幼儿的沟通能力,因此建议将其纳入听觉康复计划中。
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引用次数: 0
Comparison of Spectral and Temporal Processing Abilities between Adults with Stroke and Healthy Peers 中风成人与健康同龄人的频谱和时间处理能力比较
IF 0.5 Q3 Medicine Pub Date : 2024-05-21 DOI: 10.18502/avr.v33i3.15505
Fateme Molla Ali Akbari, S. Mehrkian, P. Afshari, Enayatollah Bakhshi
Background and Aim: Perception of speech in noise (SIN) is based on the accurate extraction of spectral and temporal cues. Disruption of this process can reduce the productivity of the spectral and temporal features of the target stimulus and speech recognition in noise. Auditory processing disorder is one of the main challenges of people with stroke, which leads to social, mental, and even physical failures. This study aimed to investigate the spectral and temporal processing abilities of people with stroke compared to healthy peers. Methods: In this study, participants were 15 patients with stroke referred to the neurology clinic of Imam Khomeini Hospital and 30 healthy people aged 20–60 years. Spectral Modulation Detection Test (SMDT), Pitch Pattern Sequencing Test (PPST), Random Gap Detection Test (RGDT) and QuickSIN tests were performed for all participants. The mean scores of the two groups were compared. Results: Patients with stroke had poorer performance in SMDT, PPST, RGDT and QuickSIN tests (p<0.001) compared to healthy subjects. The results showed that there was a significant correlation between SIN test with temporal and spectral processing in the normal group, but the correlation pattern was different in people with stroke. The scores of all the tests were not significantly different between the right and left ears. Conclusion: The results showed that people with stroke have poorer performance in all tests compared to normal people and have more problems in speech perception in challenging areas. Keywords: Auditory processing disorder; speech perception in noise; spectral modulation; temporal processing; stroke
背景和目的:噪声中语音(SIN)的感知基于对频谱和时间线索的准确提取。这一过程的中断会降低目标刺激的频谱和时间特征以及噪声中语音识别的效率。听觉处理障碍是脑卒中患者面临的主要挑战之一,它会导致社交、精神甚至身体上的失败。本研究旨在调查脑卒中患者与健康人相比的频谱和时间处理能力。研究方法本研究的参与者包括 15 名转诊至伊玛目霍梅尼医院神经科诊所的中风患者和 30 名 20-60 岁的健康人。对所有参与者进行了频谱调制检测测试(SMDT)、音调模式排序测试(PPST)、随机间隙检测测试(RGDT)和 QuickSIN 测试。比较了两组人的平均得分。结果与健康人相比,脑卒中患者在 SMDT、PPST、RGDT 和 QuickSIN 测试中的表现较差(P<0.001)。结果显示,在正常组中,SIN 测试与时间和频谱处理有明显的相关性,但在脑卒中患者中,相关性模式不同。左右耳的所有测试得分均无明显差异。结论结果表明,与正常人相比,脑卒中患者在所有测试中的表现都较差,并且在具有挑战性的区域存在更多的言语感知问题。关键词听觉处理障碍;噪声中的语音感知;频谱调制;时间处理;中风
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引用次数: 0
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Auditory and Vestibular Research
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