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Journal of the American Academy of Audiology

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https://www.readbyqxmd.com/read/30350780/enhancement-of-the-auditory-late-response-n1-p2-by-presentation-of-stimuli-from-an-unexpected-location
#1
Raquel M Heacock, Amanda Pigeon, Gail Chermak, Frank Musiek, Jeffrey Weihing
BACKGROUND: Passive electrophysiological protocols, such as the middle latency response and speech auditory brainstem response, are often advocated in the objective assessment of central auditory processing disorder (CAPD). However, few established electrophysiological protocols exist for CAPD assessment that have patients participate in active tasks which more closely approximate real-world listening. To this end, the present study used a discrimination task (i.e., oddball paradigm) to measure an enhancement of the auditory late response (N1-P2) that occurs when participants direct their auditory attention toward speech arising from an unexpected spatial location...
November 23, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30417825/bimodal-cochlear-implant-listeners-ability-to-perceive-minimal-audible-angle-differences
#2
Ashley Zaleski-King, Matthew J Goupell, Dragana Barac-Cikoja, Matthew Bakke
BACKGROUND: Bilateral inputs should ideally improve sound localization and speech understanding in noise. However, for many bimodal listeners [i.e., individuals using a cochlear implant (CI) with a contralateral hearing aid (HA)], such bilateral benefits are at best, inconsistent. The degree to which clinically available HA and CI devices can function together to preserve interaural time and level differences (ITDs and ILDs, respectively) enough to support the localization of sound sources is a question with important ramifications for speech understanding in complex acoustic environments...
November 12, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30417824/autoadaptive-a-noise-level-sensitive-beamformer-for-med-el-cochlear-implant-patients
#3
Michael F Dorman, Sarah Cook Natale
BACKGROUND: When cochlear implant (CI) listeners use a directional microphone or beamformer system to improve speech understanding in noise, the gain in understanding for speech presented from the front of the listener coexists with a decrease in speech understanding from the back. One way to maximize the usefulness of these systems is to keep a microphone in the omnidirectional mode in low noise and then switch to directional mode in high noise. PURPOSE: The purpose of this experiment was to assess the levels of speech understanding in noise allowed by a new signal processing algorithm for MED EL CIs, AutoAdaptive, which operates in the manner described previously...
November 12, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30403957/measurement-of-thresholds-using-auditory-steady-state-response-and-cochlear-microphonics-in-children-with-auditory-neuropathy
#4
Ping Lu, Yue Huang, Wen-Xia Chen, Wen Jiang, Ni-Yi Hua, Yan Wang, Bin Wang, Zheng-Min Xu
BACKGROUND: The detection of precise hearing thresholds in infants and children with auditory neuropathy (AN) is challenging with current objective methods, especially in those younger than six months of age. PURPOSE: The aim of this study was to compare the thresholds using auditory steady-state response (ASSR) and cochlear microphonics (CM) in children with AN and children with normal hearing. RESEARCH DESIGN: The thresholds of CM, ASSR, and visual reinforcement audiometry (VRA) tests were recorded; the ASSR and VRA frequencies used were 250, 500, 1000, 2000, and 4000 Hz...
November 8, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30403956/the-effects-of-extended-input-dynamic-range-on-laboratory-and-field-trial-evaluations-in-adult-hearing-aid-users
#5
Patrick N Plyler, Mary Easterday, Thomas Behrens
BACKGROUND: Digital hearing aids using a 16-bit analog-to-digital converter (ADC) provide a 96-dB input dynamic range. The level at which the ADC peak clips and distorts input signals ranges between 95 and 105 dB SPL. Recent research evaluated the effect of extending the input dynamic range in a commercially available hearing aid. Although the results were promising, several limitations were noted by the authors. Laboratory testing was conducted using recordings from hearing aids set for a flat 50-dB loss; however, field testing was conducted with hearing aids fitted for their hearing loss...
November 8, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30403955/the-relationship-between-severity-of-hearing-loss-and-subjective-tinnitus-loudness-among-patients-seen-in-a-specialist-tinnitus-and-hyperacusis-therapy-clinic-in-uk
#6
Hashir Aazh, Richard Salvi
BACKGROUND: Hearing loss is often associated with the phantom sound of tinnitus. However, the degree of the association between severity of hearing loss and tinnitus loudness taking into account the impact of other variables (e.g., emotional disturbances) is not fully understood. This is an important question for audiologists who are specialized in tinnitus rehabilitation as patients often ask whether the loudness of their tinnitus will increase if their hearing gets worse. PURPOSE: To explore the relationship between tinnitus loudness and pure tone hearing thresholds...
November 8, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30395533/sound-quality-effects-of-an-adaptive-nonlinear-frequency-compression-processor-with-normal-hearing-and-hearing-impaired-listeners
#7
Danielle Glista, Marianne Hawkins, Jonathan M Vaisberg, Nazanin Pourmand, Vijay Parsa, Susan Scollie
BACKGROUND: Frequency lowering (FL) technology offers a means of improving audibility of high-frequency sounds. For some listeners, the benefit of such technology can be accompanied by a perceived degradation in sound quality, depending on the strength of the FL setting. PURPOSE: The studies presented in this article investigate the effect of a new type of FL signal processing for hearing aids, adaptive nonlinear frequency compression (ANFC), on subjective speech quality...
November 2, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30395532/risk-assessment-of-recreational-noise-induced-hearing-loss-from-exposure-through-a-personal-audio-system-ipod-touch
#8
Kamakshi V Gopal, Liana E Mills, Bryce S Phillips, Rajesh Nandy
BACKGROUND: Recreational noise-induced hearing loss (RNIHL) is a major health issue and presents a huge economic burden on society. Exposure to loud music is not considered hazardous in our society because music is thought to be a source of relaxation and entertainment. However, there is evidence that regardless of the sound source, frequent exposure to loud music, including through personal audio systems (PAS), can lead to hearing loss, tinnitus, difficulty processing speech, and increased susceptibility to age-related hearing loss...
November 1, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30372414/investigating-auditory-spectral-and-temporal-resolution-deficits-in-children-with-reading-difficulties
#9
Kiri Mealings, Sharon Cameron
BACKGROUND: The types of reading difficulties experienced by children are highly heterogeneous in nature, which makes diagnosis and intervention difficult. Over the past 30 years, there has been much debate over the cause of dyslexia. The two most popular theories for phonological deficits in dyslexia are the rate-processing constraint hypothesis, which relates to short timescale processing, and the temporal sampling framework hypothesis, which relates to longer timescale processing. PURPOSE: To investigate the relationship between sublexical (i...
October 25, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30372413/the-mystery-of-unexplained-variance-some-comments-on-brenneman-et-al-2017
#10
Dennis J McFarland
No abstract text is available yet for this article.
October 25, 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278870/the-middle-latency-response-a-review-of-findings-in-various-central-nervous-system-lesions
#11
REVIEW
Frank Musiek, Stephanie Nagle
BACKGROUND: The middle latency response (MLR) first came to light as an auditory evoked potential in 1958. Since then, it has aroused substantial interest and investigation by clinicians and researchers alike. In recent history, its use and popularity have dwindled in tandem with various other auditory evoked potentials in audiology. One area for which MLR research and application has been overlooked is its potential value in measuring the neural integrity of the auditory thalamocortical pathway...
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278869/refining-stimulus-parameters-in-assessing-infant-speech-perception-using-visual-reinforcement-infant-speech-discrimination-in-infants-with-and-without-hearing-loss-presentation-level
#12
Kristin M Uhler, René H Gifford, Jeri E Forster, Melinda Anderson, Elyse Tierney, Stacy D Claycomb, Lynne A Werner
No abstract text is available yet for this article.
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278868/impact-of-consistency-in-daily-device-use-on-speech-perception-abilities-in-children-with-cochlear-implants-datalogging-evidence
#13
Vijayalakshmi Easwar, Joseph Sanfilippo, Blake Papsin, Karen Gordon
BACKGROUND: Cochlear implants (CIs) give children with severe to profound hearing loss access to sound. There appears to be a dose effect of sound exposure on speech perception abilities as shown by the positive influence of early implantation and CI experience. The consistency in device use per day could also affect sound dose, potentially affecting perceptual abilities in children with CIs. PURPOSE: The objectives of the present study were to identify the impact of consistency in device use on: (1) speech perception abilities and (2) asymmetry in speech perception abilities between bilateral CIs...
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278867/accounting-for-the-occlusion-effect-with-insert-earphones
#14
Dorothy Neave-DiToro, Amanda DeSantolo, Michael Bergen, Adrienne Rubinstein
BACKGROUND: There are clinical implications associated with knowing when the occlusion effect (OE) must be accounted for during bone conduction (BC) testing because spurious results can occur when errors are made in this regard. The amount of OE produced when insert earphones (IEs) are used varies in the literature; thus, further investigation is warranted. PURPOSE: The purpose of this project was to determine the OE during BC threshold measurements under the following occluding conditions used clinically: when using partial insertion (PI) versus full insertion (FI) depth and when occluding one versus both ears...
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278866/using-microphone-technology-to-improve-speech-perception-in-noise-in-children-with-cochlear-implants
#15
Patti M Johnstone, Kristen E T Mills, Elizabeth Humphrey, Kelly R Yeager, Emily Jones, Kelly McElligott, Amy Pierce, Smita Agrawal, Crista Froeling, John P Little
BACKGROUND: Cochlear implant (CI) users are affected more than their normal hearing (NH) peers by the negative consequences of background noise on speech understanding. Research has shown that adult CI users can improve their speech recognition in challenging listening environments by using dual-microphone beamformers, such as adaptive directional microphones (ADMs) and wireless remote microphones (RMs). The suitability of these microphone technologies for use in children with CIs is not well-understood nor widely accepted...
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278865/upgrade-to-nucleus-%C3%A2-6-in-previous-generation-cochlear%C3%A2-sound-processor-recipients
#16
Allison Biever, Jan Gilden, Teresa Zwolan, Megan Mears, Anne Beiter
BACKGROUND: The Nucleus® 6 sound processor is now compatible with the Nucleus® 22 (CI22M)-Cochlear's first generation cochlear implant. The Nucleus 6 offers three new signal processing algorithms that purportedly facilitate improved hearing in background noise. PURPOSE: These studies were designed to evaluate listening performance and user satisfaction with the Nucleus 6 sound processor. RESEARCH DESIGN: The research design was a prospective, single-participant, repeated measures design...
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278864/the-effect-of-increased-cognitive-demand-on-auditory-processing-assessment
#17
Kathryn Hamlyn, Katie Welldon, Benjamin Clark, Willem van Steenbrugge, Sarosh Kapadia
BACKGROUND: Auditory processing (AP) is commonly regarded as the perceptual processing of auditory information in the central nervous system. However, the degree to which higher level cognitive processes are involved in AP or its disorders is contentious. Furthermore, there is little evidence regarding the effects of nonauditory cognitive processes on the various tests of AP in common clinical usage and thus on clinical diagnoses of auditory processing disorder. PURPOSE: To determine the effects of increased cognitive demand, generated by using a dual-task paradigm, on performance on different AP tests and types of AP tests in common clinical usage...
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30278863/acknowledging-those-who-have-contributed-significantly-to-our-profession-the-academy-honors
#18
EDITORIAL
Patricia Gaffney, Devin L McCaslin
No abstract text is available yet for this article.
October 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30222545/the-characteristics-of-adults-with-severe-hearing-loss
#19
Pamela Souza, Eric Hoover, Michael Blackburn, Frederick Gallun
BACKGROUND: Severe hearing loss impairs communication in a wide range of listening environments. However, we lack data as to the specific objective and subjective abilities of listeners with severe hearing loss. Insight into those abilities may inform treatment choices. PURPOSE: The primary goal was to describe the audiometric profiles, spectral resolution ability, and objective and subjective speech perception of a sample of adult listeners with severe hearing loss, and to consider the relationships among those measures...
September 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/30222544/transient-otoacoustic-emissions-and-auditory-brainstem-responses-in-low-risk-cohort-of-newborn-and-one-month-old-infants-assessment-of-infant-auditory-system-physiology-in-the-prenatal-alcohol-in-sids-and-stillbirth-network-safe-passage-study
#20
Yvonne S Sininger, Carmen G Condon, Howard J Hoffman, Amy J Elliott, Hein J Odendaal, Larry L Burd, Michael M Myers, William P Fifer
BACKGROUND: The Prenatal Alcohol and Sudden Infant Death Syndrome and Stillbirth Network, known as the "Safe Passage Study," enrolled approximately 12,000 pregnant women from the United States and South Africa and followed the development of their babies through pregnancy and the infant's first year of life to investigate the role of prenatal alcohol exposure in the risk for sudden infant death syndrome (SIDS) and adverse pregnancy outcomes, such as stillbirth and fetal alcohol spectrum disorders...
September 2018: Journal of the American Academy of Audiology
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