hearing impaired

听力受损
  • 文章类型: Journal Article
    本研究旨在探索教师用于处理听力障碍个体的电子学习的策略,并通过电话采访确定听力障碍个体的教师遇到的障碍。创建了一组经过验证的探针,与12位教授听力障碍人士的讲师进行了半结构化访谈。对获得的数据进行归纳内容分析。数据中出现了两个主要主题:讲师遇到的挑战和讲师采用的策略。每个主题下都有几个次主题和代码。总的来说,该研究表明,需要对听力障碍患者的电子学习进行广泛的研究。
    The current study aims at exploring the strategies used by instructors to deal with e-learning of individuals with hearing impairment and identifying barriers encountered by instructors of individuals with hearing impairment through a telephonic interview. A set of validated probes was created, and a semi structured interview was conducted with 12 instructors who teach individuals with hearing impairment. The obtained data was subjected to inductive content analysis. Two major themes emerged from the data; challenges encountered by instructors and strategies adopted by instructors. Several subthemes and codes were grouped under each theme. Overall, the study indicated the need for extensive research concerning e-learning for individuals with hearing impairment.
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  • 文章类型: Journal Article
    语音测听已成为听力学测试电池的重要组成部分。各种语音测听材料已经以不同的语言开发,后来也进行了修订,以满足诸如单词的熟悉程度等标准,语音/音素平衡,试验项目数,和方言变化。目前的研究重点是在泰米尔语中为成年人开发PB单词列表。该研究分两个阶段进行。第一阶段涉及在泰米尔语中开发PB单词列表。第二阶段包括评估开发的单词列表对正常听力敏感性和听力障碍的成年人的有效性。总共使用了500个双音节单词来创建主列表。收集到的单词经过了40位泰米尔语母语人士的熟悉度测试。从500个单词的主列表中,90%的参与者将320个单词评为最熟悉的单词,这些词被包括在研究中。这320个单词得到了八个听力学领域的专家的验证,言语-语言病理学,语言学,和心理学。不同意的词语被排除在名单之外,最终清单中只有270个由所有专家同意的单词。最终列表包括四个单词列表,每个列表具有25个语音平衡(PB)单词。记录最后的单词列表并测试其质量。然后给予这些最终单词以找到两组的SIS得分。第一组由120名听力正常的成年人组成,和II组包括130名患有听力障碍的成年人.结果采用SPSS软件进行分析。听力敏感性正常的成年人的平均SIS范围为99.4%至99.8%。听力敏感度正常的成年人的SIS在性别上没有显着差异(p>.05)。耳朵,或者跨四个单词列表。所有四个单词列表都提供了相似的分数,在听力正常和听力受损的个体中建立单词列表的等效性。听力正常的成年人的表现强度功能的心理测量曲线显示,随着感觉水平从10dBSL增加到40dBSL,SIS得分增加。SIS分数从10dBSL线性增加到20dBSL。在40dBSL和100%SIS评分下达到平稳状态。因此,本研究建议使用40dBSL进行SIS测试。轻度成人的平均SIS评分,中度,严重的听力损失为90.1%,65.4%,和41.8%,分别。随着听力损失程度的增加,SIS显着降低。
    Speech audiometry has become an essential component of the audiological test battery. Various speech audiometry materials have been developed in different languages and also revised later to meet criteria such as familiarity of the words, phonetic/phonemic balance, number of test items, and dialectal variations. The current study focused on developing a PB word list in Tamil for adults. The study was carried out in two phases. Phase I involved the development of a PB word list in Tamil. Phase II included evaluating the effectiveness of the developed word lists on adults with normal hearing sensitivity and hearing impairment. A total of 500 bisyllabic words were used in creating a master list. The collected words were subjected to familiarity testing with 40 native Tamil speakers. From the master list of 500 words, 90% of the participants rated 320 words as most familiar, and those words were included in the study. The 320 words were validated by eight experts working in the fields of audiology, speech-language pathology, linguistics, and psychology. The disagreed-with words were excluded from the list, and only 270 words that were agreed upon by all the experts were included in the final list. The final lists comprised four-word lists with 25 phonetically balanced (PB) words per list. The final word lists were recorded and tested for goodness. These final words were then administered to find SIS scores for two groups. Group I consisted of adults with 120 normal hearing sensitivity, and Group II consisted of 130 adults with hearing impairment. The results were analysed using SPSS software. The mean SIS in adults with normal hearing sensitivity ranged from 99.4 to 99.8%. The SIS of adults with normal hearing sensitivity revealed no significant difference (p > .05) with respect to gender, ears, or across the four-word lists. All four-word lists provided similar scores, establishing the equivalency of word lists in individuals with normal hearing sensitivity as well as hearing impairment. A psychometric curve of performance intensity function in adults with normal hearing sensitivity revealed that the SIS score increased as the sensation level increased from 10 to 40 dB SL. There is a linear increase in SIS scores from 10 to 20 dB SL. A plateau was attained at 40 dB SL with 100% SIS scores. Thus, the present study recommends the use of 40 dB SL for SIS testing. Mean SIS scores for adults with mild, moderate, and severe hearing loss were found to be 90.1%, 65.4%, and 41.8%, respectively. A significant decrease in SIS was observed as the degree of hearing loss increased.
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  • 文章类型: Journal Article
    (1)背景:由于听障学生在运动或健身项目等社会交往中存在困难,因此听障学生的身体素质(PF)一直是国际研究热点。体育干预被证明可以提高听力受损学生的健身水平;然而,很少有研究评估Cha-cha(一种舞蹈运动)训练对听力受损学生PF水平的影响。(2)目的:本研究旨在通过12周的Cha-cha舞蹈训练对听障儿童进行干预,评估其对PF相关指标的影响,从而为听障儿童有效参与舞蹈练习提供科学的实验依据。(3)方法:将30名听力障碍学生随机分为两组,两组PF指标无差异。Cha-cha舞蹈训练组(CTG,n=15)每周定期参加五次90分钟的Cha-cha舞蹈课,干预总共持续了12周,而对照组(CONG,n=15)过着正常的生活(包括学校体育课)。干预前后测定PF相关指标,并进行了双向重复测量方差分析。(4)结果:经过培训,站立跳远(CONG:1.556±0.256vs.CTG:1.784±0.328,p=0.0136,ES=0.8081),坐达(CONG:21.467±4.539vs.CTG:25.416±5.048,p=0.0328,ES=0.8528),仰卧起坐(CONG:13.867±4.912vs.CTG:27.867±6.833,p<0.0001,ES=2.4677)和跳绳(CONG:52.467±29.691vs.CTG:68.600±21.320,p=0.0067,ES=0.6547)评分有显著性差异。(5)结论:听障学生经过12周的Cha-cha舞蹈训练,听力受损学生下半身力量的PF水平,灵活性,核心强度,心肺耐力得到有效改善;然而,身体形态没有明显变化,上身强度,肺活量,和速度能力。
    (1) Background: The physical fitness (PF) of hearing-impaired students has always been an international research hotspot since hearing-impaired students have difficulty in social interactions such as exercise or fitness programs. Sports interventions are proven to improve the fitness levels of hearing-impaired students; however, few studies evaluating the influence of Cha-cha (a type of Dance sport) training on the PF levels of hearing-impaired students have been conducted. (2) Purpose: This study aimed to intervene in hearing-impaired children through 12 weeks of Cha-cha dance training, evaluating its effects on their PF-related indicators, thus providing a scientific experimental basis for hearing-impaired children to participate in dance exercises effectively. (3) Methods: Thirty students with hearing impairment were randomly divided into two groups, and there was no difference in PF indicators between the two groups. The Cha-cha dance training group (CTG, n = 15) regularly participated in 90-min Cha-cha dance classes five times a week and the intervention lasted a total of 12 weeks, while the control group (CONG, n = 15) lived a normal life (including school physical education classes). Related indicators of PF were measured before and after the intervention, and a two-way repeated-measures analysis of variance was performed. (4) Results: After training, the standing long jump (CONG: 1.556 ± 0.256 vs. CTG: 1.784 ± 0.328, p = 0.0136, ES = 0.8081), sit-and-reach (CONG: 21.467 ± 4.539 vs. CTG: 25.416 ± 5.048, p = 0.0328, ES = 0.8528), sit-ups (CONG: 13.867 ± 4.912 vs. CTG: 27.867 ± 6.833, p < 0.0001, ES = 2.4677) and jump rope (CONG: 52.467 ± 29.691 vs. CTG: 68.600 ± 21.320, p = 0.0067, ES = 0.6547) scores showed significant differences. (5) Conclusions: After 12 weeks of Cha-cha dance training for hearing-impaired students, the PF level of hearing-impaired students in lower-body strength, flexibility, core strength, and cardiorespiratory endurance were effectively improved; however, there was no significant change in body shape, upper-body strength, vital capacity, and speed ability.
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  • 文章类型: Journal Article
    听觉障碍是人类常见的感觉缺陷之一。听力损失影响学生的沟通和阅读能力,最终导致社会和学术上的耻辱。阅读在很大程度上依赖于语音和视觉注意力。听力正常的学生通过将语音转换为单词来阅读。听力受损者几乎没有语音能力,让他们在阅读时依赖视觉线索的视觉读者。本研究试图调查影响听力受损儿童阅读技能的因素。
    在Ludhiana的听力和听力受损学校进行了一项横断面研究,旁遮普,印度。在所有学生中进行视力筛查后,通过方便抽样招收了60名学生。更高阶的视觉感知,注意,并对阅读能力进行了调查。
    共评估了60名学生(30名听力受损和30名年龄匹配的听力)。听力组优于听力受损组(p=0.001),听力受损的视觉注意力更好(p=0.001),而阅读能力和视觉感知之间存在相关性,听力障碍和听力障碍学生的注意力技能(r=0.80,P=0.001)。
    本研究得出结论,听力受损的学生表现出视觉-运动整合的问题,视觉空间关系,和视觉顺序记忆。听力受损的学生表现出更高的视觉注意力。当前调查的结果表明,视觉感知和注意力技能与阅读能力之间存在相关性。因此,本研究要求新入学的听力受损学生必须进行全面的眼部评估。
    UNASSIGNED: Auditory impairment is one of the common sensory deficits that occur in humans. Hearing loss affects students\' ability to communicate and read, which eventually causes social and scholastic stigma. Reading relies heavily on phonics as well as visual attention. Students with normal hearing read by transforming phonic sounds into words. Hearing impaired has little to no phonic ability, making them visual readers who rely on visual cues while reading. Present study sought to investigate factors that affect reading skills in hearing-impaired children.
    UNASSIGNED: A cross-sectional study was conducted in hearing- and hearing-impaired schools of Ludhiana, Punjab, India. After vision screening among all students, sixty students were enrolled via convenient sampling. Higher order of visual perception, attention, and reading ability was investigated.
    UNASSIGNED: A total of 60 students were evaluated (30 hearing impaired and 30 age-matched hearing). The hearing group was statistically better than the hearing impaired (p = 0.001), Hearing impaired were better in visual attention (p = 0.001), whereas a correlation was found between reading ability and visual perception, attention skill of hearing- and hearing-impaired students (r = 0.80, P = 0.001).
    UNASSIGNED: Present study concludes that hearing-impaired students exhibit issues with visual-motor integration, visual-spatial relationships, and visual sequential memory. Higher visual attention was demonstrated by hearing-impaired students. The results of the current investigation revealed a correlation between visual perception and attention skills and reading competency. Thus, the present study demands that the newly enrolled hearing-impaired students must undergo a thorough ocular evaluation.
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  • 文章类型: Journal Article
    UNASSIGNED:这项研究的目的是评估在印度背景下使用助听器(HA)和使用人工耳蜗(CI)的儿童父母的生活质量,并记录发现的任何差异。
    UNASSIGNED:Kannada版本的AQoL-4D以改良的方式给予131名父母(87HA和44CI)。收集社会人口统计详细信息,以补充有关所使用的干预策略的信息。
    UNASSIGNED:共有49位父母(29位HA和20CI)回答了发送的问卷。两组的平均总分相似(HA组=17.9(SD=5.5),CI组=17.2(SD=3.4),AQoL-4D的第一分量表评分(HA组=8.6(SD=2.9);CI组=8.5(SD=2.6)).两组评分均无显著性差异[总分:U(NHA=29,NCI=20)=280.5,z=-0.194,p>0.05;子量表1评分:U(NHA=29,NCI=20)=281.5,z=-0.176,p>0.05]。助听器组的听力损失程度与人工耳蜗组的听力损失程度相同,但这似乎并不影响父母的生活质量。
    未经授权:使用助听器和人工耳蜗的儿童的父母在功能领域的几个社会心理因素方面似乎相似,社会,和心理健康。就父母的生活质量而言,助听器和人工耳蜗似乎是同样有效的干预技术。
    UNASSIGNED: The goal of this study was to evaluate the quality of life of parents of children who use hearing aids (HA) with those who use cochlear implants (CI) in the Indian context and document any differences found.
    UNASSIGNED: The Kannada version of the AQoL-4D was administered in a modified fashion to 131 parents (87 HA and 44 CI). Sociodemographic details were collected for supplemental information on the intervention strategy used.
    UNASSIGNED: A total of 49 parents (29 HA and 20 CI) responded to the questionnaire sent. The mean total scores for both the groups were similar (HA group = 17.9 (SD = 5.5), CI group = 17.2 (SD = 3.4)), as was the score for the first subscale (HA group = 8.6 (SD = 2.9); CI group = 8.5 (SD = 2.6)) of the AQoL-4D. No significant differences were found between the two groups on either scores [Total Score: U (NHA = 29, NCI = 20) = 280.5, z = -0.194, p > 0.05; Subscale 1 Score: U (NHA = 29, NCI = 20) = 281.5, z = -0.176, p > 0.05]. The degree of hearing loss in the hearing aid group was equivalent to that of the cochlear implant group but this did not appear to influence parental quality of life.
    UNASSIGNED: Parents of children with hearing aids and cochlear implants appear to be similar on several psychosocial factors in the realms of functional, social, and psychological well-being. In terms of parental quality of life, hearing aids and cochlear implants appear to be equally effective intervention techniques.
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  • 文章类型: Journal Article
    UASSIGNED:对于听力受损(HI)的人来说,在不利的听力条件下理解语音是具有挑战性的。助听器(HA)中的降噪(NR)方案已经证明了帮助HI克服这些挑战的能力。这项研究的目的是调查NR处理的效果(不活跃,NR功能被关闭,vs.活跃,其中NR功能已打开)通过使用脑电图(EEG)的相位同步分析,在两个不同背景噪声水平[3dB信噪比(SNR)和8dBSNR]上的听力相关信号。
    未经ASSIGNED:记录了EEG,而22名配备HA的HI参与者在存在背景噪声和竞争性讲话者的情况下进行了连续的噪声语音(SiN)任务。通过使用多变量相位同步度量来计算八个感兴趣区域(ROI)和四个常规EEG频带内的相位同步。
    UNASSIGNED:结果表明,HA中NR的激活在低SNR下与在高SNR下不同地影响顶叶ROI中的EEG相位同步。听音任务条件与顶叶ROI中的相位同步之间的关系是非线性的。
    UNASSIGNED:我们表明,HA中NR方案的激活可以非线性地减少基于EEG的相位同步估计的听力努力的相关性。我们认为,对ROI内相位同步性的调查可以反映出在生态听力条件下HI个体中HA的影响。
    UNASSIGNED: Comprehension of speech in adverse listening conditions is challenging for hearing-impaired (HI) individuals. Noise reduction (NR) schemes in hearing aids (HAs) have demonstrated the capability to help HI to overcome these challenges. The objective of this study was to investigate the effect of NR processing (inactive, where the NR feature was switched off, vs. active, where the NR feature was switched on) on correlates of listening effort across two different background noise levels [+3 dB signal-to-noise ratio (SNR) and +8 dB SNR] by using a phase synchrony analysis of electroencephalogram (EEG) signals.
    UNASSIGNED: The EEG was recorded while 22 HI participants fitted with HAs performed a continuous speech in noise (SiN) task in the presence of background noise and a competing talker. The phase synchrony within eight regions of interest (ROIs) and four conventional EEG bands was computed by using a multivariate phase synchrony measure.
    UNASSIGNED: The results demonstrated that the activation of NR in HAs affects the EEG phase synchrony in the parietal ROI at low SNR differently than that at high SNR. The relationship between conditions of the listening task and phase synchrony in the parietal ROI was nonlinear.
    UNASSIGNED: We showed that the activation of NR schemes in HAs can non-linearly reduce correlates of listening effort as estimated by EEG-based phase synchrony. We contend that investigation of the phase synchrony within ROIs can reflect the effects of HAs in HI individuals in ecological listening conditions.
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  • 文章类型: Journal Article
    UNASSIGNED:有人提出,听力损失可能会导致视觉空间能力的提高。这种说法的证据是不一致的,仅限于对先天性聋哑儿童的研究,尽管与年龄相关的听力损失的老年人占听力受损人群的绝大多数。我们评估了有或没有临床显着认知障碍的老年成人助听器用户的视觉空间(视觉构造和视觉空间记忆)能力。该研究的主要目的是确定听力损失对视觉空间能力的影响。
    UNASISIGNED:招募了75名65岁以上的成人助听器使用者(HA),其中30人认知正常(NC-HA),30人患有轻度认知障碍(MCI-HA),15人患有痴呆(D-HA)。ReyOsterrieth复杂人物测试(ROCFT)副本,进行了3分钟回忆和30分钟回忆测试,以评估参与者的视觉结构和视觉空间记忆能力。
    UNASSIGNED:ROCFT拷贝之间存在显著差异,3分钟召回,在三个队列中回忆30分钟(p<0.005)。与以前公布的规范数据相比,NC-HA在ROCFT拷贝中表现明显更好(p<0.001),立即召回(p<0.001),和延迟召回(p=0.001),而MCI-HA的表现类似于从人口中得出的预期标准(分别为p=0.426,p=0.611,p=0.697),D-HA的表现低于这个标准。
    未经评估:尽管当整体认知功能下降时,视觉空间能力往往会下降,我们发现了与年龄相关的听力损失对视空间认知能力的积极影响的暗示性证据.轻度认知障碍和听力损失的参与者,预计他们的表现会比规范数据差,事实上,表现和认知健康的受试者一样好,没有听力损失。当为听力损失的老年人提供康复时,视觉空间能力可能是目标。
    UNASSIGNED: It has been proposed that hearing loss may result in improved visuospatial abilities. The evidence for this assertion is inconsistent, and limited to studies in congenitally deaf children, despite older adults with age-related hearing loss constituting the vast majority of the hearing impaired population. We assessed visuospatial (visuoconstruction and visuospatial memory) ability in older adult hearing aid users with and without clinically significant cognitive impairment. The primary aim of the study was to determine the effect of hearing loss on visuospatial abilities.
    UNASSIGNED: Seventy-five adult hearing aid users (HA) aged over 65 were recruited, out of whom 30 had normal cognition (NC-HA), 30 had mild cognitive impairment (MCI-HA), and 15 had dementia (D-HA). The Rey Osterrieth Complex figure test (ROCFT) copy, 3 min recall and 30 min recall tests were performed to evaluate the visuoconstructional and visuospatial memory abilities of the participants.
    UNASSIGNED: There were significant differences between the ROCFT copy, 3 min recall, and 30 min recall among the three cohorts (p < 0.005). Compared with previously published normative data, the NC-HA performed significantly better in the ROCFT copy (p < 0.001), immediate recall (p < 0.001), and delay recall (p = 0.001), while the MCI-HA performed similarly to the expected norms derived from population (p = 0.426, p = 0.611, p = 0.697, respectively), and the D-HA performed below this norm.
    UNASSIGNED: Though visuospatial abilities tend to decline when the global cognitive functioning declines, we found suggestive evidence for positive effects of age-related hearing loss on visuospatial cognitive ability. Participants with mild cognitive impairment and hearing loss, who would have been expected to perform worse than normative data, were in fact performing as well as cognitively healthy subjects without hearing loss. Visuospatial ability could be targeted when providing rehabilitation for the older adults with hearing loss.
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  • 文章类型: Journal Article
    耳蜗植入物(CI)在恢复严重至极度失聪的人的言语感知方面非常成功。尽管他们取得了成功,仍然存在一些限制,特别是在CI用户在嘈杂环境中理解语音的能力,定位声源,享受音乐。已经提出了一种新的多模态方法,该方法使用触觉刺激来提供植入物传输不良的声音信息。通过触觉刺激(电触觉刺激;EHS)增强电CI信号已被证明可以改善CI用户中的语音噪声性能和声音定位。也有证据表明它可以增强音乐感知。我们回顾了EHS增强CI听力的证据,并讨论了需要进一步研究的关键领域。这些包括了解EHS增强的神经基础,了解EHS在不同临床人群中的有效性,以及信号处理策略的优化。我们还讨论了新一代触觉神经假体设备的巨大潜力,以帮助那些无法使用助听技术的人。要么是因为生物医学或医疗保健问题。虽然需要进一步的研究和开发,我们得出结论,EHS代表了一种有希望的新方法,在不久的将来,提供一个非侵入性的,大幅改善听力受损个体临床结果的廉价手段。
    Cochlear implants (CIs) have been remarkably successful at restoring speech perception for severely to profoundly deaf individuals. Despite their success, several limitations remain, particularly in CI users\' ability to understand speech in noisy environments, locate sound sources, and enjoy music. A new multimodal approach has been proposed that uses haptic stimulation to provide sound information that is poorly transmitted by the implant. This augmenting of the electrical CI signal with haptic stimulation (electro-haptic stimulation; EHS) has been shown to improve speech-in-noise performance and sound localization in CI users. There is also evidence that it could enhance music perception. We review the evidence of EHS enhancement of CI listening and discuss key areas where further research is required. These include understanding the neural basis of EHS enhancement, understanding the effectiveness of EHS across different clinical populations, and the optimization of signal-processing strategies. We also discuss the significant potential for a new generation of haptic neuroprosthetic devices to aid those who cannot access hearing-assistive technology, either because of biomedical or healthcare-access issues. While significant further research and development is required, we conclude that EHS represents a promising new approach that could, in the near future, offer a non-invasive, inexpensive means of substantially improving clinical outcomes for hearing-impaired individuals.
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  • 文章类型: Journal Article
    听力损失在老年人群中很普遍。医疗保健系统和提供者面临挑战,以满足急性护理环境中听力受损成年人的沟通需求。听力受损的患者对自己和医疗保健系统构成风险。医疗保健系统可以利用高级实践护士的专业知识,特别是那些以老年医学为重点的人,制定旨在满足老年听力障碍患者独特需求的战略要务。为患有听力障碍的老年成年患者使用个人放大器设备进行实践改变是一种创新方法,可以增强患者与医疗保健跨专业团队之间的有效沟通和护理交付。创新策略包括了解个人放大器设备,开发识别出现听力损失的患者的方法,并为提供者提供跨学科教育和培训。高级执业护士是改善听力受损的老年人护理的理想选择。
    Hearing loss is prevalent in the geriatric population. Healthcare systems and providers are challenged to meet communication needs in hearing impaired adults in the acute care setting. Patients with impaired-hearing pose risk to themselves and the healthcare system. Healthcare systems can utilize the expertise of advanced practice nurses, especially those with a geriatric focus to develop strategic imperatives aimed at addressing the unique needs of older adults patients with hearing impairments. Instituting a practice change using the personal amplifier device for older adult patients with hearing impairment is an innovative approach to enhancing effective communication and care delivery between patients and the healthcare interprofessional team. Innovative strategies include understanding personal amplifier devices, developing methods to identify patients who present with hearing loss, and provide interdisciplinary education and training to providers. Advanced practice nurses are ideal to function as change agents in the improvement of care for the hearingimpaired older adult.
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  • 文章类型: Journal Article
    耳蜗植入物(CI)通过电刺激耳蜗来严重恢复严重听力受损的人的听力。虽然它们非常有效,空间听觉通常受到严重限制。最近的研究表明,触觉刺激可以补充电CI信号(电触觉刺激)并大大改善声音定位。在触觉声音定位研究中,信号从耳后设备接收的音频中提取并传递到每个手腕。定位是使用手腕上的触觉强度差异(TID)实现的,匹配整个耳朵的声音强度差异(关键声音定位提示)。当前的研究确定了可穿戴触觉设备在三个候选位置对跨肢体TID的敏感性,即:下三头肌和掌侧和背侧腕部。在所有地点,TID敏感性与正常听力听众对跨耳强度差异的敏感性相似。这表明可以实现比先前示出的更大的触觉声音定位精度。还测量了动态范围,远远超过了所有位置的电刺激可获得的范围,这表明触觉刺激可以提供额外的声音强度信息。这些结果表明,可以为任何候选位置部署有效的触觉辅助,可以提供低成本的,改善听力受损听众预后的非侵入性手段。
    Cochlear implants (CIs) recover hearing in severely to profoundly hearing-impaired people by electrically stimulating the cochlea. While they are extremely effective, spatial hearing is typically severely limited. Recent studies have shown that haptic stimulation can supplement the electrical CI signal (electro-haptic stimulation) and substantially improve sound localization. In haptic sound-localization studies, the signal is extracted from the audio received by behind-the-ear devices and delivered to each wrist. Localization is achieved using tactile intensity differences (TIDs) across the wrists, which match sound intensity differences across the ears (a key sound localization cue). The current study established sensitivity to across-limb TIDs at three candidate locations for a wearable haptic device, namely: the lower tricep and the palmar and dorsal wrist. At all locations, TID sensitivity was similar to the sensitivity to across-ear intensity differences for normal-hearing listeners. This suggests that greater haptic sound-localization accuracy than previously shown can be achieved. The dynamic range was also measured and far exceeded that available through electrical CI stimulation for all of the locations, suggesting that haptic stimulation could provide additional sound-intensity information. These results indicate that an effective haptic aid could be deployed for any of the candidate locations, and could offer a low-cost, non-invasive means of improving outcomes for hearing-impaired listeners.
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