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Ear and Hearing

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https://www.readbyqxmd.com/read/28338496/infants-and-adults-use-of-temporal-cues-in-consonant-discrimination
#1
Laurianne Cabrera, Lynne Werner
OBJECTIVES: Adults can use slow temporal envelope cues, or amplitude modulation (AM), to identify speech sounds in quiet. Faster AM cues and the temporal fine structure, or frequency modulation (FM), play a more important role in noise. This study assessed whether fast and slow temporal modulation cues play a similar role in infants' speech perception by comparing the ability of normal-hearing 3-month-olds and adults to use slow temporal envelope cues in discriminating consonants contrasts...
March 23, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28338495/burden-of-hearing-loss-on-communication-partners-and-its-influence-on-pursuit-of-hearing-evaluation
#2
Kristine A Schulz, Naomi Modeste, Jerry W Lee, Rhonda Roberts, Gabrielle H Saunders, David L Witsell
OBJECTIVE: Describe how the burden on the communication partner (CP) from the patient's hearing loss, as perceived by both the patient and their CP, influences a patient's pursuit of hearing evaluation. DESIGN: Cross-sectional design. Demographics, perception of patient's hearing loss, and associated burden on the CP were collected from both patient and CP via online questionnaires. Patients and their CPs from Duke University Medical Center Otolaryngology Clinic, 55 to 75 years of age, being seen for any reason, who indicated a CP has expressed concern about their hearing...
March 23, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28319479/brainstem-evoked-potential-indices-of-subcortical-auditory-processing-after-mild-traumatic-brain-injury
#3
Kathy R Vander Werff, Brian Rieger
OBJECTIVES: The primary aim of this study was to assess subcortical auditory processing in individuals with chronic symptoms after mild traumatic brain injury (mTBI) by measuring auditory brainstem responses (ABRs) to standard click and complex speech stimuli. Consistent with reports in the literature of auditory problems after mTBI (despite normal-hearing thresholds), it was hypothesized that individuals with mTBI would have evidence of impaired neural encoding in the auditory brainstem compared to noninjured controls, as evidenced by delayed latencies and reduced amplitudes of ABR components...
March 17, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28301392/combined-electric-and-acoustic-stimulation-with-hearing-preservation-effect-of-cochlear-implant-low-frequency-cutoff-on-speech-understanding-and-perceived-listening-difficulty
#4
René H Gifford, Timothy J Davis, Linsey W Sunderhaus, Christine Menapace, Barbara Buck, Jillian Crosson, Lori O'Neill, Anne Beiter, Phil Segel
OBJECTIVE: The primary objective of this study was to assess the effect of electric and acoustic overlap for speech understanding in typical listening conditions using semidiffuse noise. DESIGN: This study used a within-subjects, repeated measures design including 11 experienced adult implant recipients (13 ears) with functional residual hearing in the implanted and nonimplanted ear. The aided acoustic bandwidth was fixed and the low-frequency cutoff for the cochlear implant (CI) was varied systematically...
March 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28301391/comparison-of-multipole-stimulus-configurations-with-respect-to-loudness-and-spread-of-excitation
#5
Dirk Vellinga, Jeroen Johannes Briaire, David Michael Paul van Meenen, Johannes Hubertus Maria Frijns
OBJECTIVE: Current spread is a substantial limitation of speech coding strategies in cochlear implants. Multipoles have the potential to reduce current spread and thus generate more discriminable pitch percepts. The difficulty with multipoles is reaching sufficient loudness. The primary goal was to compare the loudness characteristics and spread of excitation (SOE) of three types of phased array stimulation, a novel multipole, with three more conventional configurations. DESIGN: Fifteen postlingually deafened cochlear implant users performed psychophysical experiments addressing SOE, loudness scaling, loudness threshold, loudness balancing, and loudness discrimination...
March 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28301390/pre-and-postoperative-binaural-unmasking-for-bimodal-cochlear-implant-listeners
#6
Benjamin M Sheffield, Gerald Schuchman, Joshua G W Bernstein
OBJECTIVES: Cochlear implants (CIs) are increasingly recommended to individuals with residual bilateral acoustic hearing. Although new hearing-preserving electrode designs and surgical approaches show great promise, CI recipients are still at risk to lose acoustic hearing in the implanted ear, which could prevent the ability to take advantage of binaural unmasking to aid speech recognition in noise. This study examined the tradeoff between the benefits of a CI for speech understanding in noise and the potential loss of binaural unmasking for CI recipients with some bilateral preoperative acoustic hearing...
March 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28234670/effects-of-hearing-impairment-and-hearing-aid-amplification-on-listening-effort-a-systematic-review
#7
Barbara Ohlenforst, Adriana A Zekveld, Elise P Jansma, Yang Wang, Graham Naylor, Artur Lorens, Thomas Lunner, Sophia E Kramer
OBJECTIVES: To undertake a systematic review of available evidence on the effect of hearing impairment and hearing aid amplification on listening effort. Two research questions were addressed: Q1) does hearing impairment affect listening effort? and Q2) can hearing aid amplification affect listening effort during speech comprehension? DESIGN: English language articles were identified through systematic searches in PubMed, EMBASE, Cinahl, the Cochrane Library, and PsycINFO from inception to August 2014...
February 23, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28234669/a-longitudinal-investigation-of-the-home-literacy-environment-and-shared-book-reading-in-young-children-with-hearing-loss
#8
Jean L DesJardin, Carren J Stika, Laurie S Eisenberg, Karen C Johnson, Dianne M Hammes Ganguly, Shirley C Henning, Bethany G Colson
OBJECTIVES: The principle goal of this longitudinal study was to examine parent perceptions of home literacy environment (e.g., frequency of book reading, ease of book reading with child) and observed behaviors during shared book reading (SBR) interactions between parents and their children with hearing loss (HL) as compared with parents and their children with normal hearing (NH) across 3 time points (12, 24, and 36 months old). Relationships were also explored among home literacy environment factors and SBR behaviors and later language outcomes, across all three time points for parents of children with and without HL...
February 23, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28207580/response-to-letter-to-the-editor-re-henry-j-a-frederick-m-sell-s-griest-s-abrams-h-2015-validation-of-a-novel-combination-hearing-aid-and-tinnitus-therapy-device-ear-and-hear-36-42-52
#9
James A Henry, Susan Griest, Melissa Frederick, Harvey Abrams
No abstract text is available yet for this article.
February 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28207579/expansion-of-prosodic-abilities-at-the-transition-from-babble-to-words-a-comparison-between-children-with-cochlear-implants-and-normally-hearing-children
#10
Michèle Pettinato, Ilke De Clerck, Jo Verhoeven, Steven Gillis
OBJECTIVES: This longitudinal study examined the effect of emerging vocabulary production on the ability to produce the phonetic cues to prosodic prominence in babbled and lexical disyllables of infants with cochlear implants (CI) and normally hearing (NH) infants. Current research on typical language acquisition emphasizes the importance of vocabulary development for phonological and phonetic acquisition. Children with CI experience significant difficulties with the perception and production of prosody, and the role of possible top-down effects is, therefore, particularly relevant for this population...
February 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28207578/the-impact-of-a-cochlear-implant-electrode-array-on-the-middle-ear-transfer-function
#11
David Pazen, Andreas Anagiotos, Maike Nünning, Antoniu-Oreste Gostian, Magdalene Ortmann, Dirk Beutner
OBJECTIVES: As a treatment for partial deafness with residual hearing in the lower frequency range, the combined acoustic and electric stimulation of the cochlea has become widespread. Acoustic stimulation is provided by a hearing aid's airborne sound and the electric stimulation by a cochlear implant electrode array, which may be inserted through the round window or a cochleostomy. To take advantage of that concept, it is essential to preserve residual hearing after surgery. Therefore, the intracochlear electrode array should not compromise the middle ear vibration transmission...
February 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28207577/letter-to-the-editor-reporting-of-data-to-inform-the-design-of-a-definitive-trial-re-henry-j-a-frederick-m-sell-s-griest-s-abrams-h-2015-validation-of-a-novel-combination-hearing-aid-and-tinnitus-therapy-device-ear-hear-36-42-52
#12
https://www.readbyqxmd.com/read/28207576/relationship-between-peripheral-and-psychophysical-measures-of-amplitude-modulation-detection-in-cochlear-implant-users
#13
Viral D Tejani, Paul J Abbas, Carolyn J Brown
OBJECTIVE: This study investigates the relationship between electrophysiological and psychophysical measures of amplitude modulation (AM) detection. Prior studies have reported both measures of AM detection recorded separately from cochlear implant (CI) users and acutely deafened animals, but no study has made both measures in the same CI users. Animal studies suggest a progressive loss of high-frequency encoding as one ascends the auditory pathway from the auditory nerve to the cortex...
February 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28207575/health-related-quality-of-life-among-young-children-with-cochlear-implants-and-developmental-disabilities
#14
Anat Zaidman-Zait, Deirdre Curle, Janet R Jamieson, Ruth Chia, Frederick K Kozak
OBJECTIVE: The present study examined differences in health-related quality of life (HRQoL) between deaf children with cochlear implants (CI) with and without developmental disabilities (DD) and differences across HRQoL domains within both groups of children. METHODS: Ninety-two parents of children with CI aged 3-7 years participated in this cross-sectional study. Of these children, 43 had DD (i.e., CI-DD group) and 49 had no DD or chronic illness, demonstrating overall typical development (i...
February 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28169839/speech-intelligibility-as-a-cue-for-acceptable-noise-levels
#15
Karrie L Recker, Christophe Micheyl
OBJECTIVES: The goal of this study was to examine whether individuals are using speech intelligibility to determine how much noise they are willing to accept while listening to running speech. Previous research has shown that the amount of background noise that an individual is willing to accept while listening to speech is predictive of his or her likelihood of success with hearing aids. If it were possible to determine the criterion by which individuals make this judgment, then it may be possible to alter this cue, especially for those who are unlikely to be successful with hearing aids, and thereby improve their chances of success with hearing aids...
February 6, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28169838/estimation-of-minor-conductive-hearing-loss-in-humans-using-distortion-product-otoacoustic-emissions
#16
Steven C Marcrum, Peter Kummer, Thomas Steffens
OBJECTIVES: Conductive hearing loss (CHL) systematically alters distortion product otoacoustic emission (DPOAE) levels through attenuation of both the primary tones and the evoked response by the middle ear, as well as through modification of the effective L1-L2 relationship within the cochlea. It has been postulated that, if optimal primary tone level relationships for an ear without CHL are known or can be estimated accurately and a CHL can be presumed to attenuate both primary tones to a similar extent, the adjustment to L1 required to restore an optimal L1-L2 separation following CHL induction can be utilized to estimate CHL magnitude objectively...
February 6, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28166089/the-change-in-electrical-stimulation-levels-during-24-months-postimplantation-for-a-large-cohort-of-adults-using-the-nucleus%C3%A2-cochlear-implant
#17
Emalka A Gajadeera, Karyn L Galvin, Richard C Dowell, Peter A Busby
OBJECTIVES: To examine electrical stimulation data over 24 months postimplantation in adult implant users. The first aim was to calculate mean T and C levels for seven time points, for four cochlear segments, and two array types. The second aim was to (a) analyze the degree of change in each of the T and C levels as a function of dynamic range for six consecutive time point comparisons, for the four segments, and (b) to determine the proportion of participants with an acceptable degree of change...
February 2, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28166088/directional-microphone-contralateral-routing-of-signals-in-cochlear-implant-users-a-within-subjects-comparison
#18
Wilhelm Wimmer, Martin Kompis, Christof Stieger, Marco Caversaccio, Stefan Weder
OBJECTIVES: For medical or financial reasons, bilateral cochlear implantation is not always possible in bilaterally deafened patients. In such cases, a contralateral routing of signals (CROS) device could complement the monaural implant. The goal of our study was to compare the benefit of three different conditions: (1) unilateral cochlear implant (CI) alone, (2) unilateral CI complemented with a directional CROS microphone, and (3) bilateral CIs. DESIGN: Twelve bilateral experienced CI users were tested...
February 2, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28125444/objective-identification-of-simulated-cochlear-implant-settings-in-normal-hearing-listeners-via-auditory-cortical-evoked-potentials
#19
Sungmin Lee, Gavin M Bidelman
OBJECTIVES: Providing cochlear implant (CI) patients the optimal signal processing settings during mapping sessions is critical for facilitating their speech perception. Here, we aimed to evaluate whether auditory cortical event-related potentials (ERPs) could be used to objectively determine optimal CI parameters. DESIGN: While recording neuroelectric potentials, we presented a set of acoustically vocoded consonants (aKa, aSHa, and aNa) to normal-hearing listeners (n = 12) that simulated speech tokens processed through four different combinations of CI stimulation rate and number of spectral maxima...
January 25, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28125445/self-adjustment-of-upper-electrical-stimulation-levels-in-ci-programming-and-the-effect-on-auditory-functioning
#20
Jantien L Vroegop, J Gertjan Dingemanse, Marc P van der Schroeff, R Mick Metselaar, André Goedegebure
OBJECTIVES: With current cochlear implants (CIs), CI recipients achieve good speech perception in quiet surroundings. However, in acoustically complex, real-life environments, speech comprehension remains difficult and sound quality often remains poor. It is, therefore, a challenge to program CIs for such environments in a clinic. The CI manufacturer Cochlear Ltd. recently introduced a remote control that enables CI recipients to alter the upper stimulation levels of their user programs themselves...
January 17, 2017: Ear and Hearing
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