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Ear and Hearing

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https://www.readbyqxmd.com/read/28708814/chirp-evoked-otoacoustic-emissions-and-middle-ear-absorbance-for-monitoring-ototoxicity-in-cystic-fibrosis-patients
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/28671917/experimental-simulation-of-clinical-borderline-situations-in-temporal-bone-specimens-after-ossiculoplasty
#12
Till F Jakob, Jan Kromeier, Tobias Baumann, Jens Pfeiffer, Marcus Neudert, Roland Laszig, Thomas Zahnert, Christian Offergeld
OBJECTIVES: One reason for insufficient hearing improvement with a distinct air-bone gap after ossiculoplasty with implantation of partial or total ossicular replacement prostheses can be the dislocation or minimal shifting of the prosthesis. The aim of this study was the simulation of common clinical borderline situations with minimal shifting of the prosthesis in temporal bone specimens after ossiculoplasty. It was furthermore the goal to identify these specific situations through imaging by cone beam computed tomography (cbCT) and direct visual inspection using the operation microscope...
June 30, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28671916/investigation-of-electrical-stimulation-levels-over-8-to-10-years-postimplantation-for-a-large-cohort-of-adults-using-cochlear-implants
#13
Emalka A Gajadeera, Karyn L Galvin, Richard C Dowell, Peter A Busby
OBJECTIVES: This study examined electrical stimulation levels over 8 to 10 years postimplantation in adult Nucleus implant users. The first aim was to investigate long-term trends and amount of change in electrical stimulation levels for each of four electrode array segments. The second aim was to determine long-term trends and amount of change for particular participants who previously showed greater change (i.e., >20% of dynamic range [DR]) in each of the threshold (T) and comfort (C) levels within the first 3 to 6 months postimplantation...
June 30, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28657922/response-to-comment-on-ohlenforst-et-al
#14
Barbara Ohlenforst, Pamela E Souza, Ewen N MacDonald
No abstract text is available yet for this article.
June 27, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28657921/comment-on-ohlenforst-et-al-2016-exploring-the-relationship-between-working-memory-compressor-speed-and-background-noise-characteristics-ear-hear-37-137-143
#15
https://www.readbyqxmd.com/read/28650850/systemic-aminoglycosides-induced-vestibulotoxicity-in-humans
#16
Ruth Van Hecke, Vincent Van Rompaey, Floris L Wuyts, Laura Leyssens, Leen Maes
OBJECTIVES: This systematic review aimed to investigate the prevalence and characteristics of vestibular adverse effects of aminoglycoside (AG) therapy in humans and to analyze objective vestibular tests for the detection of AG-induced vestibulotoxicity. DESIGN: PubMed, Cochrane Database, Web of Science, and reference lists of all included studies were screened by two independent researchers. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were followed...
June 23, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28650353/the-effect-of-hearing-loss-on-novel-word-learning-in-infant-and-adult-directed-speech
#17
V Susie Robertson, Deborah von Hapsburg, Jessica S Hay
OBJECTIVES: Relatively little is known about how young children with hearing impairment (HI) learn novel words in infant- and adult-directed speech (ADS). Infant-directed speech (IDS) supports word learning in typically developing infants relative to ADS. This study examined how children with normal hearing (NH) and children with HI learn novel words in IDS and ADS. It was predicted that IDS would support novel word learning in both groups of children. In addition, children with HI were expected to be less proficient word learners as compared with their NH peers...
June 22, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28650352/the-effect-of-aging-and-priming-on-same-different-judgments-between-text-and-partially-masked-speech
#18
Richard L Freyman, Jenna Terpening, Angela C Costanzi, Karen S Helfer
OBJECTIVES: It is well known from previous research that when listeners are told what they are about to hear before a degraded or partially masked auditory signal is presented, the speech signal "pops out" of the background and becomes considerably more intelligible. The goal of this research was to explore whether this priming effect is as strong in older adults as in younger adults. DESIGN: Fifty-six adults-28 older and 28 younger-listened to "nonsense" sentences spoken by a female talker in the presence of a 2-talker speech masker (also female) or a fluctuating speech-like noise masker at 5 signal-to-noise ratios...
June 22, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28640038/impact-of-noise-and-noise-reduction-on-processing-effort-a-pupillometry-study
#19
Dorothea Wendt, Renskje K Hietkamp, Thomas Lunner
OBJECTIVES: Speech perception in adverse listening situations can be exhausting. Hearing loss particularly affects processing demands, as it requires increased effort for successful speech perception in background noise. Signal processing in hearing aids and noise reduction (NR) schemes aim to counteract the effect of noise and reduce the effort required for speech recognition in adverse listening situations. The present study examined the benefit of NR schemes, applying a combination of a digital NR and directional microphones, for reducing the processing effort during speech recognition...
June 20, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28562426/age-related-differences-in-the-processing-of-temporal-envelope-and-spectral-cues-in-a-speech-segment
#20
Matthew J Goupell, Casey R Gaskins, Maureen J Shader, Erin P Walter, Samira Anderson, Sandra Gordon-Salant
OBJECTIVES: As people age, they experience reduced temporal processing abilities. This results in poorer ability to understand speech, particularly for degraded input signals. Cochlear implants (CIs) convey speech information via the temporal envelopes of a spectrally degraded input signal. Because there is an increasing number of older CI users, there is a need to understand how temporal processing changes with age. Therefore, the goal of this study was to quantify age-related reduction in temporal processing abilities when attempting to discriminate words based on temporal envelope information from spectrally degraded signals...
May 26, 2017: Ear and Hearing
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