Beltone launched the Beltone Imagine™, an innovative solution that combines a microphone and a receiver in the ear, enabling an unprecedented natural sound experience and addressing one of the biggest issues of hearing aid users: "unnatural" sound. Now every patient can enjoy the benefits of superior sound quality and hear conversations better in noisy environments. Currently, a hearing aid worn over the ear captures sound with two microphones placed outside and behind the ear. While sound is amplified,...
New research from the National Institute for Occupational Safety and Health (NIOSH) estimates that a large number of noise-exposed workers within the Services industry sector, the largest sector in U.S. industry, have an elevated risk of hearing loss. The new study, Prevalence of Hearing Loss among Noise-exposed Workers within the Services Sector, 2006–2015, was recently published in the International Journal of Audiology.Workers who are exposed to hazardous noise or chemicals that damage hearing...
By Hyacinth TagupaEmergency departments (EDs) are among the common places where patients present sudden hearing loss (SHL). But in such a fast-paced, high-pressure environment, it is often challenging to quantitatively and rapidly assess hearing loss. Now, a study shows that self-administered mobile audiometry may be sensitive enough to detect SHL in emergency settings and screen patients for comprehensive evaluation.The study, titled Hearing Vital Signs: Mobile Audiometry in the Emergency Department...
Beltone launched the Beltone Imagine™, an innovative solution that combines a microphone and a receiver in the ear, enabling an unprecedented natural sound experience and addressing one of the biggest issues of hearing aid users: "unnatural" sound. Now every patient can enjoy the benefits of superior sound quality and hear conversations better in noisy environments. Currently, a hearing aid worn over the ear captures sound with two microphones placed outside and behind the ear. While sound is amplified,...
New research from the National Institute for Occupational Safety and Health (NIOSH) estimates that a large number of noise-exposed workers within the Services industry sector, the largest sector in U.S. industry, have an elevated risk of hearing loss. The new study, Prevalence of Hearing Loss among Noise-exposed Workers within the Services Sector, 2006–2015, was recently published in the International Journal of Audiology.Workers who are exposed to hazardous noise or chemicals that damage hearing...
By Hyacinth TagupaEmergency departments (EDs) are among the common places where patients present sudden hearing loss (SHL). But in such a fast-paced, high-pressure environment, it is often challenging to quantitatively and rapidly assess hearing loss. Now, a study shows that self-administered mobile audiometry may be sensitive enough to detect SHL in emergency settings and screen patients for comprehensive evaluation.The study, titled Hearing Vital Signs: Mobile Audiometry in the Emergency Department...
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Objectives: To assess the use of “aural patching” as a strategy to potentially reduce the known persistence of aural preference in children receiving bilateral cochlear implants (CIs) with long inter-implant delays by removing the first device to increase stimulation to the second implanted side. Design: Children/adolescents who received a second CI at 12.8 ± 3.5 years of age after 9.4 ± 2.9 years of unilateral CI use were asked to remove their first CI for regular periods daily (aural patching)....
Objectives: This systematic review is designed to (a) describe measures used to quantify vocal development in pediatric cochlear implant (CI) users, (b) synthesize the evidence on prelinguistic vocal development in young children before and after cochlear implantation, and (c) analyze the application of the current evidence for evaluating change in vocal development before and after cochlear implantation for young children. Investigations of prelinguistic vocal development after cochlear implantation...
Objectives: In adult cochlear implant patients, conventional audiometry is used to measure postoperative residual hearing which requires active listening and patient feedback. However, audiological measurements in pediatric cochlear implant patients are both challenging as well as time consuming. Intracochlear electrocochleography (ECOG) offers an objective and a time-efficient method to measure frequency-specific cochlear microphonic or difference thresholds (CM/DIF) thresholds that closely approximate...
Objectives: The authors conducted a systematic review of the literature and meta-analyses to assess the influence of family environment on language development in children with cochlear implants. Design: The Pubmed, excerpta medica dataBASE (EMBASE), Education Research Information Center, cumulative index to nursing and allied health literature (CINAHL), Healthcare Literature Information Network, PubPsych, and Social SciSearch databases were searched. The search strategy included terms describing...
Objectives: A cochlear implant (CI) implements a variety of sound processing algorithms that seek to improve speech intelligibility. Typically, only a small number of parameter combinations are evaluated with recipients but the optimal configuration may differ for individuals. The present study evaluates a novel methodology which uses the output signal to noise ratio (OSNR) to predict complete psychometric functions that relate speech recognition to signal to noise ratio for individual CI recipients. ...
Objectives: This study quantitatively assesses how cochlear implants (CIs) and vocoder simulations of CIs influence the identification of linguistic and emotional prosody in nontonal languages. By means of meta-analysis, it was explored how accurately CI users and normal-hearing (NH) listeners of vocoder simulations (henceforth: simulation listeners) identify prosody compared with NH listeners of unprocessed speech (henceforth: NH listeners), whether this effect of electric hearing differs between...
Objectives: Due to interaural frequency mismatch, bilateral cochlear-implant (CI) users may be less able to take advantage of binaural cues that normal-hearing (NH) listeners use for spatial hearing, such as interaural time differences and interaural level differences. As such, bilateral CI users have difficulty segregating competing speech even when the target and competing talkers are spatially separated. The goal of this study was to evaluate the effects of spectral resolution, tonotopic mismatch...
Objectives: Expansion of the scopes of practice of allied health practitioners has the potential to improve the efficiency and cost-effectiveness of healthcare, given the identified shortages in medical personnel. Despite numerous examples in other allied health disciplines, this has yet to be applied to pediatric Audiology. This study aimed to investigate the effectiveness and safety of using audiologists with advanced training to independently triage children referred to otolaryngology (ORL)...
Objectives: The human auditory nerve can be electrically stimulated by cochlear implants (CIs) with pulse trains consisting of biphasic pulses with small interphase gaps (IPGs). In animal experiments, lower electrically evoked compound action potential (ECAP) thresholds in implanted animals were found for increasing IPGs (2.1, 10, 20, 30 μs). ECAP thresholds may correlate with loudness thresholds. Therefore, in this study, the IPG effect on loudness and dynamic range was investigated in nine CI...
Objectives: The objective of this study was to determine if absent air conduction stimuli vestibular evoked myogenic potential (VEMP) responses found in ears after cochlear implantation can be the result of alterations in peripheral auditory mechanics rather than vestibular loss. Peripheral mechanical changes were investigated by comparing the response rates of air and bone conduction VEMPs as well as by measuring and evaluating wideband acoustic immittance (WAI) responses in ears with cochlear...
Objectives: This longitudinal study followed the language development of children who received the combination of early (5 to 18 months) and simultaneous bilateral cochlear implants (CIs) throughout the first 6 years after implantation. It examined the trajectories of their language development and identified factors associated with language outcomes. Design: Participants were 21 Norwegian children who received bilateral CIs between the ages of 5 and 18 mo and 21 children with normal hearing...
Objectives: The aim of this research was to evaluate the measurement properties of the Hearing Handicap Inventory for the Elderly (HHIE). The HHIE is one of the most widely used patient-reported outcome measures in audiology. It was originally developed in the United States in the 1980s as a measure of the social and emotional impact of hearing loss in older adults. It contains 25 items that are accompanied by a 3-point response scale. To date, the measurement properties of the HHIE have primarily...
Objectives: This work describes the development of a manualized best-practice hearing intervention for older adults participating in the Aging and Cognitive Health Evaluation in Elders (ACHIEVE) randomized controlled clinical trial. Manualization of interventions for clinical trials is critical for assuring intervention fidelity and quality, especially in large multisite studies. The multisite ACHIEVE randomized controlled trial is designed to assess the efficacy of a hearing intervention on rates...
Objectives: The aim of this study was to compare intracochlear-recorded cochlear microphonics (CM) responses to behavioral audiometry thresholds in young children, with congenital hearing loss, 2 to 5 years after cochlear implantation early in life. In addition, differences in speech and auditory outcomes were assessed among children with and without residual hearing. Design: The study was conducted at a tertiary, university-affiliated, pediatric medical center. CM responses by intracochlear...
Objectives: The motivation for this research is to determine whether a listening-while-balancing task would be sensitive to quantifying listening effort in middle age. The premise behind this exploratory work is that a decrease in postural control would be demonstrated in challenging acoustic conditions, more so in middle-aged than in younger adults. Design: A dual-task paradigm was employed with speech understanding as one task and postural control as the other. For the speech perception...
Objectives: Listening to speech in adverse listening conditions is effortful. Objective assessment of cognitive spare capacity during listening can serve as an index of the effort needed to understand speech. Cognitive spare capacity is influenced both by signal-driven demands posed by listening conditions and top-down demands intrinsic to spoken language processing, such as memory use and semantic processing. Previous research indicates that electrophysiological responses, particularly alpha...
Ideally, public health policies are formulated from scientific data; however, policy-specific data are often unavailable. Big data can generate ecologically-valid, high-quality scientific evidence, and therefore has the potential to change how public health policies are formulated. Here, we discuss the use of big data for developing evidence-based hearing health policies, using data collected and analyzed with a research prototype of a data repository known as EVOTION (EVidence-based management of...
Objectives: To investigate the mechanisms behind binaural and spatial effects in speech understanding for bimodal cochlear implant listeners. In particular, to test our hypothesis that their speech understanding can be characterized by means of monaural signal to noise ratios, rather than complex binaural cue processing such as binaural unmasking. Design: We applied a semantic framework to characterize binaural and spatial effects in speech understanding on an extensive selection of the literature...
Objectives: Phantom electrode stimulation was developed for cochlear implant (CI) systems to provide a lower pitch percept by stimulating more apical regions of the cochlea, without inserting the electrode array deeper into the cochlea. Phantom stimulation involves simultaneously stimulating a primary and a compensating electrode with opposite polarity, thereby shifting the electrical field toward the apex and eliciting a lower pitch percept. The current study compared the effect sizes (in shifts...
Objectives: Previous research has shown that children with cochlear implants (CIs) encounter more communication difficulties than their normal-hearing (NH) peers in kindergarten and elementary schools. Yet, little is known about the potential listening difficulties that children with CIs may experience during secondary education. The aim of this study was to investigate the listening difficulties of children with a CI in mainstream secondary education and to compare these results to the difficulties...
Objectives: Understanding how signal processing influences neural activity in the brain with hearing loss is relevant to the design and evaluation of features intended to alleviate speech-in-noise deficits faced by many hearing aid wearers. Here, we examine whether hearing aid processing schemes that are designed to improve speech-in-noise intelligibility (i.e., directional microphone and noise reduction) also improve electrophysiological indices of speech processing in older listeners with hearing...
Objectives: Functional near-infrared spectroscopy (fNIRS) is a brain imaging technique particularly suitable for hearing studies. However, the nature of fNIRS responses to auditory stimuli presented at different stimulus intensities is not well understood. In this study, we investigated whether fNIRS response amplitude was better predicted by stimulus properties (intensity) or individually perceived attributes (loudness). Design: Twenty-two young adults were included in this experimental...
Objective: This study aimed to (1) investigate the effect of pulse polarity on neural response of the electrically stimulated cochlear nerve in children with cochlear nerve deficiency (CND) and children with normal-sized cochlear nerves and (2) compare the size of the pulse polarity effect between these two subject groups. Design: The experimental and control group included 31 children with CND and 31 children with normal-sized cochlear nerves, respectively. For each study participant, evoked...
Objectives: Extracochlear electrodes in cochlear implants (CI), defined as individual electrodes on the electrode array located outside of the cochlea, are not a rare phenomenon. The presence of extracochlear electrodes frequently goes unnoticed and could result in them being assigned stimulation frequencies that are either not delivered to, or stimulating neurons that overlap with intracochlear electrodes, potentially reducing performance. The current gold-standard for detection of extracochlear...
Objectives: This study aims to characterize lateralization of sounds and localization of sounds in children with bilateral conductive hearing loss (BCHL) when listening with either one or two percutaneous bone conduction devices (BCDs). Design: Sound lateralization was measured with the minimum audible angle test in which children were asked to indicate from which of the two visible speakers the sound originated. Sound localization was measured with a test in which stimuli were presented...
Objectives: Among low-birth-weight infants, exposure to stress or undernutrition in utero may adversely affect cochlear development. As cochlear reserve declines, the risk of hearing loss may increase with age. While low birth weight is associated with a higher risk of neonatal hearing loss, our objective was to examine whether birth weight was associated with adult-onset, self-reported hearing loss in the Nurses’ Health Studies (NHS) I and II (n = 113,130). Design: We used Cox proportional...
Objectives: The spatial position of a cochlear implant (CI) electrode array affects the spectral cues provided to the recipient. Differences in cochlear size and array length lead to substantial variability in angular insertion depth (AID) across and within array types. For CI-alone users, the variability in AID results in varying degrees of frequency-to-place mismatch between the default electric frequency filters and cochlear place of stimulation. For electric-acoustic stimulation (EAS) users,...
Objectives: Approximately 10 to 35% of people with a hearing impairment own a hearing aid. The present study aims to identify barriers to obtaining a hearing aid and inform future interventions by examining the biopsychosocial characteristics of adults aged 50+ according to 7 categories: (i) Did not report hearing difficulties, (ii) Reported hearing difficulties, (iii) Told a healthcare professional about experiencing hearing difficulties, (iv) Referred for a hearing assessment, (v) Offered a...
Objectives: Cochlear implants (CIs) are remarkable in allowing individuals with severe to profound hearing loss to perceive speech. Despite these gains in speech understanding, however, CI users often struggle to perceive elements such as vocal emotion and prosody, as CIs are unable to transmit the spectro-temporal detail needed to decode affective cues. This issue becomes particularly important for children with CIs, but little is known about their emotional development. In a previous study,...
Objectives: Cochlear implant (CI) signal processing degrades the spectral components of speech. This requires CI users to rely primarily on temporal cues, specifically, amplitude modulations within the temporal envelope, to recognize speech. Auditory temporal processing ability for envelope modulations worsens with advancing age, which may put older CI users at a disadvantage compared with younger users. To evaluate how potential age-related limitations for processing temporal envelope modulations...
Objective: To evaluate the effect of artifacts on the impulse and response recordings with the video head impulse test (VHIT) and determine how many stimuli are necessary for obtaining acceptably efficient measurements. Methods: One hundred fifty patients were examined using VHIT and their registries searched for artifacts. We compared several variations of the dataset. The first variation used only samples without artifacts, the second used all samples (with and without artifacts), and the...
Objectives: When auditory and visual speech information are presented together, listeners obtain an audiovisual (AV) benefit or a speech understanding improvement compared with auditory-only (AO) or visual-only (VO) presentations. Cochlear-implant (CI) listeners, who receive degraded speech input and therefore understand speech using primarily temporal information, seem to readily use visual cues and can achieve a larger AV benefit than normal-hearing (NH) listeners. It is unclear, however, if...
Objectives: We examined the effect of age on speech understanding and multitask costs in the ecologically relevant “Audiovisual True-to-Life Assessment of Auditory Rehabilitation”-paradigm (AVATAR). Design: Twenty-nine normal-hearing middle-aged adults completed AVATAR, which combines an auditory-visual speech-in-noise task with three secondary tasks on auditory localization or visual short-term memory in different dual-, triple-, and quadruple-task combinations. Performance decrements on...
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Publication date: Available online 22 August 2020Source: Gait & PostureAuthor(s): Carolina Mie Kawagosi Onodera, Hélio José Coelho-Júnior, Ricardo Aurélio Carvalho Sampaio, José Fabio Santos Duarte Lana, Luis Felipe Milano Teixeira, Marco Carlos Uchida, Joyce Maria Annichino Bizzacchi
Publication date: Available online 22 August 2020Source: Gait & PostureAuthor(s): M. Wesseling, H. Kainz, T. Hoekstra, S. Van Rossom, K. Desloovere, F. De Groote, I. Jonkers
Publication date: Available online 21 August 2020Source: Gait & PostureAuthor(s): Maayan Schweizer, Sharon Eylon, Michal Katz-Leurer
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Publication date: Available online 22 August 2020Source: Hearing ResearchAuthor(s): Glen K Martin, Barden B Stagner, Wei Dong, Brenda L Lonsbury-Martin
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