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Ear and Hearing

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https://www.readbyqxmd.com/read/28806193/speech-perception-in-noise-and-listening-effort-of-older-adults-with-nonlinear-frequency-compression-hearing-aids
#1
James Shehorn, Nicole Marrone, Thomas Muller
OBJECTIVES: The purpose of this laboratory-based study was to compare the efficacy of two hearing aid fittings with and without nonlinear frequency compression, implemented within commercially available hearing aids. Previous research regarding the utility of nonlinear frequency compression has revealed conflicting results for speech recognition, marked by high individual variability. Individual differences in auditory function and cognitive abilities, specifically hearing loss slope and working memory, may contribute to aided performance...
August 10, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28799983/discrimination-of-voice-pitch-and-vocal-tract-length-in-cochlear-implant-users
#2
Etienne Gaudrain, Deniz Başkent
OBJECTIVES: When listening to two competing speakers, normal-hearing (NH) listeners can take advantage of voice differences between the speakers. Users of cochlear implants (CIs) have difficulty in perceiving speech on speech. Previous literature has indicated sensitivity to voice pitch (related to fundamental frequency, F0) to be poor among implant users, while sensitivity to vocal-tract length (VTL; related to the height of the speaker and formant frequencies), the other principal voice characteristic, has not been directly investigated in CIs...
August 9, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28787316/contralateral-interference-caused-by-binaurally-presented-competing-speech-in-adult-bilateral-cochlear-implant-users
#3
Matthew J Goupell, Olga A Stakhovskaya, Joshua G W Bernstein
OBJECTIVES: Bilateral cochlear implants (BI-CIs) are intended to improve sound localization and speech understanding in the presence of interfering sounds. For normal-hearing listeners, improved speech understanding in the presence of interfering sounds can be achieved with monaural head shadow and binaural unmasking. While some BI-CI listeners experience binaural unmasking under certain testing conditions, others appear to not. This study tested a group of BI-CI users with hearing histories that have been linked to poor binaural processing-early onset of deafness or long duration of deafness in just one ear...
August 3, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28787315/exploring-hearing-aid-problems-perspectives-of-hearing-aid-owners-and-clinicians
#4
Rebecca J Bennett, Ariane Laplante-Lévesque, Carly J Meyer, Robert H Eikelboom
OBJECTIVES: To gather perspectives of hearing aid owners and hearing healthcare clinicians with regard to problems that arise after hearing aid fitting and use these perspectives to generate a conceptual framework to gain a better understanding of these problems. DESIGN: Participants included a group of 17 hearing aid owners and a group of 21 hearing healthcare clinicians; data collection occurred separately for each group. Participants each attended two group sessions in Perth, Western Australia, wherein they: (1) generated statements describing the problems associated with hearing aids and (2) grouped and rated the statements to identify key themes...
August 3, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28777230/auditory-acclimatization-to-bilateral-hearing-aids-effects-on-sentence-in-noise-processing-times-and-speech-evoked-potentials
#5
Julia Habicht, Mareike Finke, Tobias Neher
OBJECTIVES: Using a longitudinal design, the present study sought to substantiate indications from two previous cross-sectional studies that hearing aid (HA) experience leads to improved speech processing abilities as quantified using eye-gaze measurements. Another aim was to explore potential concomitant changes in event-related potentials (ERPs) to speech stimuli. DESIGN: Groups of elderly novice (novHA) and experienced (expHA) HA users matched in terms of age and working memory capacity participated...
August 2, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28753163/cortical-processing-of-vocal-and-nonvocal-sounds-in-cochlear-implanted-children-an-electrophysiological-study
#6
David Bakhos, John Galvin, Sylvie Roux, Emmanuel Lescanne, Nicole Bruneau
OBJECTIVES: For prelingually deaf children, cochlear implants (CIs) can restore auditory input to the auditory cortex and the ability to acquire spoken language. Language development is strongly intertwined with voice perception. The aim of this electrophysiological study was to investigate human voice processing using measures of cortical auditory evoked potentials (AEPs) in pediatric CI users. DESIGN: Cortical AEPs were measured in 8 CI children (4 to 12 years old) with good auditory and language performance and 8 normal-hearing (NH) age-matched controls...
July 27, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28753162/auditory-and-audiovisual-close-shadowing-in-post-lingually-deaf-cochlear-implanted-patients-and-normal-hearing-elderly-adults
#7
Lucie Scarbel, Denis Beautemps, Jean-Luc Schwartz, Marc Sato
OBJECTIVES: The goal of this study was to determine the effect of auditory deprivation and age-related speech decline on perceptuo-motor abilities during speech processing in post-lingually deaf cochlear-implanted participants and in normal-hearing elderly (NHE) participants. DESIGN: A close-shadowing experiment was carried out on 10 cochlear-implanted patients and on 10 NHE participants, with two groups of normal-hearing young participants as controls. To this end, participants had to categorize auditory and audiovisual syllables as quickly as possible, either manually or orally...
July 27, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28746090/modern-hearing-aids-verification-outcome-measures-and-follow-up
#8
Jeremy J Donai
No abstract text is available yet for this article.
July 25, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28737551/vibrotactile-thresholds-on-the-mastoid-and-forehead-position-of-deaf-patients-using-radioear-b71-and-b81
#9
Karl-Johan Fredén Jansson, Bo Håkansson, Sabine Reinfeldt, Laura Fröhlich, Torsten Rahne
OBJECTIVES: The main objective of this study was to measure the vibrotactile thresholds on the mastoid process and forehead positions using patients with bilateral deafness and to compare the results from the two bone conduction vibrators Radioear B71 and B81. DESIGN: There is a possibility that the vibrotactile sensation on the skin makes it difficult to discriminate between sound and vibration. The risk is highest for patients who have bone conduction hearing thresholds in proximity to or worse than their vibrotactile thresholds...
July 21, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28708814/chirp-evoked-otoacoustic-emissions-and-middle-ear-absorbance-for-monitoring-ototoxicity-in-cystic-fibrosis-patients
#10
Angela C Garinis, Douglas H Keefe, Lisa L Hunter, Denis F Fitzpatrick, Daniel B Putterman, Garnett P McMillan, Jeffrey A Gold, M Patrick Feeney
OBJECTIVES: The goal of this study was to investigate the use of transient-evoked otoacoustic emissions (TEOAEs) and middle ear absorbance measurements to monitor auditory function in patients with cystic fibrosis (CF) receiving ototoxic medications. TEOAEs were elicited with a chirp stimulus using an extended bandwidth (0.71 to 8 kHz) to measure cochlear function at higher frequencies than traditional TEOAEs. Absorbance over a wide bandwidth (0.25 to 8 kHz) provides information on middle ear function...
July 13, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28700448/linguistic-context-versus-semantic-competition-in-word-recognition-by-younger-and-older-adults-with-cochlear-implants
#11
Nicole M Amichetti, Eriko Atagi, Ying-Yee Kong, Arthur Wingfield
OBJECTIVES: The increasing numbers of older adults now receiving cochlear implants raises the question of how the novel signal produced by cochlear implants may interact with cognitive aging in the recognition of words heard spoken within a linguistic context. The objective of this study was to pit the facilitative effects of a constraining linguistic context against a potential age-sensitive negative effect of response competition on effectiveness of word recognition. DESIGN: Younger (n = 8; mean age = 22...
July 11, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28700447/impact-of-hearing-aid-technology-on-outcomes-in-daily-life-iii-localization
#12
Jani A Johnson, Jingjing Xu, Robyn M Cox
OBJECTIVE: Compared to basic-feature hearing aids, premium-feature hearing aids have more advanced technologies and sophisticated features. The objective of this study was to explore the difference between premium-feature and basic-feature hearing aids in horizontal sound localization in both laboratory and daily life environments. We hypothesized that premium-feature hearing aids would yield better localization performance than basic-feature hearing aids. DESIGN: Exemplars of premium-feature and basic-feature hearing aids from two major manufacturers were evaluated...
July 11, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28700446/pure-tone-masking-patterns-for-monopolar-and-phantom-electrical-stimulation-in-cochlear-implants
#13
Aniket A Saoji, Kanthaiah Koka, Leonid M Litvak, Charles C Finley
OBJECTIVES: Monopolar stimulation of the most apical electrode produces the lowest pitch sensation in cochlear implants clinically. A phantom electrode that uses out-of-phase electrical stimulation between the most apical and the neighboring basal electrode can produce a lower pitch sensation than that associated with the most apical electrode. However, because of the absence of contacts beyond the apical tip of the array, the ability to assess the spread of electrical excitation associated with phantom stimulation is limited in the typical cochlear implant subject with no residual hearing...
July 11, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28700445/auditory-brainstem-implant-array-position-varies-widely-among-adult-and-pediatric-patients-and-is-associated-with-perception
#14
Samuel R Barber, Elliott D Kozin, Aaron K Remenschneider, Sidharth V Puram, Max Smith, Barbara S Herrmann, Mary E Cunnane, M Christian Brown, Daniel J Lee
OBJECTIVES: The auditory brainstem implant (ABI) provides sound awareness to patients who are ineligible for cochlear implantation. Auditory performance varies widely among similar ABI cohorts. We hypothesize that differences in electrode array position contribute to this variance. Herein, we classify ABI array position based on postoperative imaging and investigate the relationship between position and perception. DESIGN: Retrospective review of pediatric and adult ABI users with postoperative computed tomography...
July 11, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28692567/auditory-cognitive-training-for-pediatric-cochlear-implant-recipients
#15
Srikanta K Mishra, Shiva P Boddupally
OBJECTIVES: Understanding speech in noise is the biggest challenge faced by individuals with cochlear implants (CIs). Improving speech-in-noise perception for pediatric CI recipients continues to remain a high priority for all stakeholders. This study was designed to investigate the efficacy of working memory training for improving speech-in-noise recognition for children with CIs. DESIGN: Fourteen children with CIs (aged 6 to 15 years) received adaptive, home-based training on forward digit span task for 5 weeks, while 13 children with CIs participated in backward digit span training...
July 7, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28691934/comparison-of-different-hearing-aid-prescriptions-for-children
#16
Josephine E Marriage, Deborah A Vickers, Thomas Baer, Brian R Glasberg, Brian C J Moore
OBJECTIVES: To assess whether there are significant differences between speech scores for different hearing aid prescription methods, specifically DSL i/o, DSL V, and NAL-NL1, using age-appropriate closed- and open-set speech tests with young children, designed to avoid floor and ceiling effects. DESIGN: Participants were 44 children with moderate or severe bilateral hearing loss, 8 aged 2 to 3 years, 15 aged 4 to 5 years, and 21 aged 6 to 9 years. Children wore bilateral hearing aids fitted with each prescription method in turn in a balanced double-blind design...
July 6, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28682810/spectral-temporal-modulated-ripple-discrimination-by-children-with-cochlear-implants
#17
David M Landsberger, Monica Padilla, Amy S Martinez, Laurie S Eisenberg
OBJECTIVES: A postlingually implanted adult typically develops hearing with an intact auditory system, followed by periods of deafness (or near deafness) and adaptation to the implant. For an early implanted child whose brain is highly plastic, the auditory system matures with consistent input from a cochlear implant. It is likely that the auditory system of early implanted cochlear implant users is fundamentally different than postlingually implanted adults. The purpose of this study is to compare the basic psychophysical capabilities and limitations of these two populations on a spectral resolution task to determine potential effects of early deprivation and plasticity...
July 4, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28678078/responsiveness-of-the-electrically-stimulated-cochlear-nerve-in-children-with-cochlear-nerve-deficiency
#18
Shuman He, Bahar S Shahsavarani, Tyler C McFayden, Haibo Wang, Katherine E Gill, Lei Xu, Xiuhua Chao, Jianfen Luo, Ruijie Wang, Nancy He
OBJECTIVES: This study aimed to (1) investigate the responsiveness of the cochlear nerve (CN) to a single biphasic-electrical pulse in implanted children with cochlear nerve deficiency (CND) and (2) compare their results with those measured in implanted children with normal-size CNs. DESIGN: Participants included 23 children with CND (CND1 to CND23) and 18 children with normal-size CNs (S1 to S18). All subjects except for CND1 used Cochlear Nucleus cochlear implants with contour electrode arrays in their test ears...
July 1, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28678077/high-frequency-distortion-product-otoacoustic-emission-repeatability-in-a-patient-population
#19
Laura Dreisbach, Erika Zettner, Margaret Chang Liu, Caitlin Meuel Fernhoff, Imola MacPhee, Arthur Boothroyd
OBJECTIVES: Distortion-product otoacoustic emissions (DPOAEs) are repeatable over time at lower frequencies (≤8 kHz) and higher frequencies (>8 kHz) in healthy, normal-hearing subjects. The purpose of this study was to examine the repeatability of DPOAEs measured with high-frequency (HF) stimuli in a patient population. It was hypothesized that HF DPOAEs would be repeatable over four trials. DESIGN: DPOAEs were measured in 40 cystic fibrosis (CF) patients (17 females and 23 males) with measurable behavioral thresholds and present DPOAEs for at least 2 of the high frequencies tested (8 to 16 kHz)...
July 1, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28671918/a-comparison-of-distortion-product-otoacoustic-emission-properties-in-m%C3%A3-ni%C3%A3-re-s-disease-patients-and-normal-hearing-participants
#20
Markus Drexl, Eike Krause, Robert Gürkov
OBJECTIVES: Postmortem examination of temporal bones of Ménière's disease patients consistently show dilated endolymphatic spaces of the inner ear, for which the term endolymphatic hydrops has been coined. During the past decade, magnetic resonance imaging techniques for the inner ear appeared, advancing the diagnosis of Ménière's disease. They require, however, a field-strength of at least 3 T, are costly and not universally available. Alternative, noninvasive, cost-effective tests with high sensitivity and specifity for endolymphatic hydrops are desirable...
June 30, 2017: Ear and Hearing
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