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Trends in Hearing

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https://www.readbyqxmd.com/read/29113579/use-of-research-interfaces-for-psychophysical-studies-with-cochlear-implant-users
#1
Ruth Y Litovsky, Matthew J Goupell, Alan Kan, David M Landsberger
A growing number of laboratories are using research interfaces to conduct experiments with cochlear-implant (CI) users. Because these interfaces bypass a subject's clinical sound processor, several concerns exist regarding safety and stimulation levels. Here we suggest best-practice approaches for how to safely and ethically perform this type of research and highlight areas of limited knowledge where further research is needed to help clarify safety limits. The article is designed to provide an introductory level of technical detail about the devices and the effects of electrical stimulation on perception and neurophysiology...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29105620/loud-music-exposure-and-cochlear-synaptopathy-in-young-adults-isolated-auditory-brainstem-response-effects-but-no-perceptual-consequences
#2
John H Grose, Emily Buss, Joseph W Hall
The purpose of this study was to test the hypothesis that listeners with frequent exposure to loud music exhibit deficits in suprathreshold auditory performance consistent with cochlear synaptopathy. Young adults with normal audiograms were recruited who either did ( n = 31) or did not ( n = 30) have a history of frequent attendance at loud music venues where the typical sound levels could be expected to result in temporary threshold shifts. A test battery was administered that comprised three sets of procedures: (a) electrophysiological tests including distortion product otoacoustic emissions, auditory brainstem responses, envelope following responses, and the acoustic change complex evoked by an interaural phase inversion; (b) psychoacoustic tests including temporal modulation detection, spectral modulation detection, and sensitivity to interaural phase; and (c) speech tests including filtered phoneme recognition and speech-in-noise recognition...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29090641/evaluation-of-a-method-for-determining-binaural-sensitivity-to-temporal-fine-structure-tfs-af-test-for-older-listeners-with-normal-and-impaired-low-frequency-hearing
#3
Christian Füllgrabe, Brian C J Moore
The ability to process binaural temporal fine structure (TFS) information was assessed using the TFS-AF test (where AF stands for adaptive frequency) for 26 listeners aged 60 years or more with normal or elevated low-frequency audiometric thresholds. The test estimates the highest frequency at which a fixed interaural phase difference (IPD) of ϕ (varied here between 30° and 180°) can be discriminated from an IPD of 0°, with higher thresholds indicating better performance. A sensation level of 30 dB was used...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29090640/listening-into-2030-workshop-an-experiment-in-envisioning-the-future-of-hearing-and-communication-science
#4
Simon Carlile, Gregory Ciccarelli, Jane Cockburn, Anna C Diedesch, Megan K Finnegan, Ervin Hafter, Simon Henin, Sridhar Kalluri, Alexander J E Kell, Erol J Ozmeral, Casey L Roark, Jessica E Sagers
Here we report the methods and output of a workshop examining possible futures of speech and hearing science out to 2030. Using a design thinking approach, a range of human-centered problems in communication were identified that could provide the motivation for a wide range of research. Nine main research programs were distilled and are summarized: (a) measuring brain and other physiological parameters, (b) auditory and multimodal displays of information, (c) auditory scene analysis, (d) enabling and understanding shared auditory virtual spaces, (e) holistic approaches to health management and hearing impairment, (f) universal access to evolving and individualized technologies, (g) biological intervention for hearing dysfunction, (h) understanding the psychosocial interactions with technology and other humans as mediated by technology, and (i) the impact of changing models of security and privacy...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29076393/designing-clinical-trials-for-assessing-the-effectiveness-of-interventions-for-tinnitus
#5
Deborah A Hall
In the face of finite resources, allocations of research and health-care funding are dependent upon high-quality evidence. Historically, tinnitus has been the poor cousin of hearing science, with low-quality clinical research providing unreliable estimates of effect and with devices marketed for tinnitus without strong evidence for those product claims. However, the tinnitus field is changing. Key opinion leaders have recently made calls to the field to improve the design, implementation, and reporting of clinical trials, and there is growing intersectoral collaboration...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29027511/evaluation-of-a-frequency-lowering-algorithm-for-adults-with-high-frequency-hearing-loss
#6
Marina Salorio-Corbetto, Thomas Baer, Brian C J Moore
The objective was to determine the effects of a frequency-lowering algorithm (frequency composition, Fcomp) on consonant identification, word-final /s, z/ detection, the intelligibility of sentences in noise, and subjective benefit, for people with high-frequency hearing loss, including people with dead regions (DRs) in the cochlea. A single-blind randomized crossover design was used. Performance with Bernafon Acriva 9 hearing aids was compared with Fcomp off and Fcomp on. Participants wore the hearing aids in each condition in a counterbalanced order...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28982021/a-data-driven-synthesis-of-research-evidence-for-domains-of-hearing-loss-as-reported-by-adults-with-hearing-loss-and-their-communication-partners
#7
Venessa Vas, Michael A Akeroyd, Deborah A Hall
A number of assessment tools exist to evaluate the impact of hearing loss, with little consensus among researchers as to either preference or psychometric adequacy. The item content of hearing loss assessment tools should seek to capture the impact of hearing loss on everyday life, but to date no one has synthesized the range of hearing loss complaints from the perspectives of the person with hearing loss and their communication partner. The current review aims to synthesize the evidence on person with hearing loss- and communication partner-reported complaints of hearing loss...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28969522/soft-tissue-conduction-review-mechanisms-and-implications
#8
Haim Sohmer
Soft tissue conduction (STC) is a recently explored mode of auditory stimulation, complementing air (AC) and bone (BC) conduction stimulation. STC can be defined as the hearing induced when vibratory stimuli reach skin and soft tissue sites not directly overlying skull bone such as the head, neck, thorax, and body. Examples of STC include the delivery of vibrations to the skin of parts of the body by a clinical bone vibrator, hearing underwater sounds and free field air sounds, while AC hearing is attenuated by earplugs...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28929903/predictors-of-hearing-aid-outcomes
#9
Enrique A Lopez-Poveda, Peter T Johannesen, Patricia Pérez-González, José L Blanco, Sridhar Kalluri, Brent Edwards
Over 360 million people worldwide suffer from disabling hearing loss. Most of them can be treated with hearing aids. Unfortunately, performance with hearing aids and the benefit obtained from using them vary widely across users. Here, we investigate the reasons for such variability. Sixty-eight hearing-aid users or candidates were fitted bilaterally with nonlinear hearing aids using standard procedures. Treatment outcome was assessed by measuring aided speech intelligibility in a time-reversed two-talker background and self-reported improvement in hearing ability...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28874096/the-benefits-of-bimodal-aiding-on-extended-dimensions-of-speech-perception-intelligibility-listening-effort-and-sound-quality
#10
Elke M J Devocht, A Miranda L Janssen, Josef Chalupper, Robert J Stokroos, Erwin L J George
The benefits of combining a cochlear implant (CI) and a hearing aid (HA) in opposite ears on speech perception were examined in 15 adult unilateral CI recipients who regularly use a contralateral HA. A within-subjects design was carried out to assess speech intelligibility testing, listening effort ratings, and a sound quality questionnaire for the conditions CI alone, CIHA together, and HA alone when applicable. The primary outcome of bimodal benefit, defined as the difference between CIHA and CI, was statistically significant for speech intelligibility in quiet as well as for intelligibility in noise across tested spatial conditions...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28758567/the-benefit-of-a-visually-guided-beamformer-in-a-dynamic-speech-task
#11
Virginia Best, Elin Roverud, Timothy Streeter, Christine R Mason, Gerald Kidd
The aim of this study was to evaluate the performance of a visually guided hearing aid (VGHA) under conditions designed to capture some aspects of "real-world" communication settings. The VGHA uses eye gaze to steer the acoustic look direction of a highly directional beamforming microphone array. Although the VGHA has been shown to enhance speech intelligibility for fixed-location, frontal targets, it is currently not known whether these benefits persist in the face of frequent changes in location of the target talker that are typical of conversational turn-taking...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752812/introducing-the-australian-hearing-hub
#12
David McAlpine, Catherine McMahon, Harvey Dillon, Greg Leigh, Jim Hungerford, Jim Patrick, Robert Cowan, Louise Dodd
This special issue contains a collection of papers highlighting the collaborative research taking place at Macquarie University's Australian Hearing Hub. Included in this introduction is a brief outline of the challenges in the hearing health and communication space and a brief description of the Australian Hearing Hub and its members, alongside an overview of the studies included in this special issue.
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752811/bilateral-versus-unilateral-cochlear-implantation-in-adult-listeners-speech-on-speech-masking-and-multitalker-localization
#13
Baljeet Rana, Jörg M Buchholz, Catherine Morgan, Mridula Sharma, Tobias Weller, Shivali Appaiah Konganda, Kyoko Shirai, Atsushi Kawano
Binaural hearing helps normal-hearing listeners localize sound sources and understand speech in noise. However, it is not fully understood how far this is the case for bilateral cochlear implant (CI) users. To determine the potential benefits of bilateral over unilateral CIs, speech comprehension thresholds (SCTs) were measured in seven Japanese bilateral CI recipients using Helen test sentences (translated into Japanese) in a two-talker speech interferer presented from the front (co-located with the target speech), ipsilateral to the first-implanted ear (at +90° or -90°), and spatially symmetric at ±90°...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752810/speech-recognition-outcomes-after-cochlear-reimplantation-surgery
#14
Mariana Reis, Isabelle Boisvert, Valerie Looi, Melville da Cruz
This study compares speech recognition outcomes before and after cochlear reimplantation surgery, in relation to clinical factors known before and at time of surgery. Between 2006 and 2015, 2,055 adult cochlear implant surgeries were conducted at this center, of which 87 were reimplantation surgeries (4.2%). Speech recognition scores (SRS) assessed before and after reimplantation were available for 54 adults. Overall, SRS measured after reimplantation were similar to the best SRS obtained by the patient and greater than the last SRS measured before surgery...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752809/psychosocial-development-in-5-year-old-children-with-hearing-loss-using-hearing-aids-or-cochlear-implants
#15
Cara L Wong, Teresa Y C Ching, Linda Cupples, Laura Button, Greg Leigh, Vivienne Marnane, Jessica Whitfield, Miriam Gunnourie, Louise Martin
This article reports on the psychosocial development and factors influencing outcomes of 5-year-old children with cochlear implants (CIs) or hearing aids (HAs). It further examines differences between children with CIs and HAs with similar levels of hearing loss. Data were collected as part of the Longitudinal Outcomes of Children with Hearing Impairment study-a prospective, population-based study. Parents/caregivers of children completed the Strengths and Difficulties Questionnaire ( n = 333), the Social Skills subscale from the Child Development Inventory ( n = 317), and questionnaires on functional auditory behavior (Parents' Evaluation of Aural/oral performance of Children), and demographics...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752808/decision-making-in-audiology-balancing-evidence-based-practice-and-patient-centered-care
#16
Isabelle Boisvert, Jennifer Clemesha, Erik Lundmark, Erica Crome, Caitlin Barr, Catherine M McMahon
Health-care service delivery models have evolved from a practitioner-centered approach toward a patient-centered ideal. Concurrently, increasing emphasis has been placed on the use of empirical evidence in decision-making to increase clinical accountability. The way in which clinicians use empirical evidence and client preferences to inform decision-making provides an insight into health-care delivery models utilized in clinical practice. The present study aimed to investigate the sources of information audiologists use when discussing rehabilitation choices with clients, and discuss the findings within the context of evidence-based practice and patient-centered care...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752807/objective-assessment-of-listening-effort-coregistration-of-pupillometry-and-eeg
#17
Kelly Miles, Catherine McMahon, Isabelle Boisvert, Ronny Ibrahim, Peter de Lissa, Petra Graham, Björn Lyxell
Listening to speech in noise is effortful, particularly for people with hearing impairment. While it is known that effort is related to a complex interplay between bottom-up and top-down processes, the cognitive and neurophysiological mechanisms contributing to effortful listening remain unknown. Therefore, a reliable physiological measure to assess effort remains elusive. This study aimed to determine whether pupil dilation and alpha power change, two physiological measures suggested to index listening effort, assess similar processes...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28752806/the-influence-of-social-interaction-and-physical-health-on-the-association-between-hearing-and-depression-with-age-and-gender
#18
Gitte Keidser, Mark Seeto
Recent epidemiological data suggest the relation between hearing difficulty and depression is more evident in younger and middle-aged populations than in older adults. There are also suggestions that the relation may be more evident in specific subgroups; that is, other factors may influence a relationship between hearing and depression in different subgroups. Using cross-sectional data from the UK Biobank on 134,357 community-dwelling people and structural equation modelling, this study examined the potential mediating influence of social isolation and unemployment and the confounding influence of physical illness and cardiovascular conditions on the relation between a latent hearing variable and both a latent depressive episodes variable and a latent depressive symptoms variable...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28675088/sensitivity-to-angular-and-radial-source-movements-as-a-function-of-acoustic-complexity-in-normal-and-impaired-hearing
#19
Micha Lundbeck, Giso Grimm, Volker Hohmann, Søren Laugesen, Tobias Neher
In contrast to static sounds, spatially dynamic sounds have received little attention in psychoacoustic research so far. This holds true especially for acoustically complex (reverberant, multisource) conditions and impaired hearing. The current study therefore investigated the influence of reverberation and the number of concurrent sound sources on source movement detection in young normal-hearing (YNH) and elderly hearing-impaired (EHI) listeners. A listening environment based on natural environmental sounds was simulated using virtual acoustics and rendered over headphones...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/28675087/erratum
#20
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No abstract text is available yet for this article.
January 2017: Trends in Hearing
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