Ετικέτες

Τετάρτη 1 Ιουλίου 2020


Spectral Contrast Effects Reveal Different Acoustic Cues for Vowel Recognition in Cochlear-Implant Users
Objectives: The identity of a speech sound can be affected by the spectrum of a preceding stimulus in a contrastive manner. Although such aftereffects are often reduced in people with hearing loss and cochlear implants (CIs), one recent study demonstrated larger spectral contrast effects in CI users than in normal-hearing (NH) listeners. The present study aimed to shed light on this puzzling finding. We hypothesized that poorer spectral resolution leads CI users to rely on different acoustic cues...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Aided Hearing Moderates the Academic Outcomes of Children With Mild to Severe Hearing Loss
Objectives: There are very limited data regarding the spoken language and academic outcomes of children with mild to severe hearing loss (HL) during the elementary school years, and the findings of these studies are inconsistent. None of these studies have examined the possible role of aided hearing in these outcomes. This study used a large cohort of children to examine these outcomes and in particular to examine whether aided hearing moderates the effect of HL with regard to these outcomes. ...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Evaluation of a Cognitive Behavioral Model of Tinnitus Distress: A Cross-Sectional Study Using Structural Equation Modeling
Objectives: There is a great deal of variation in the extent to which people with tinnitus find it distressing, which cannot be explained solely by differences in perceived loudness. The Cognitive Behavioral Model of Tinnitus Distress proposes that tinnitus becomes and is maintained as a distressing problem due to a process of interaction between negative thoughts, negative emotions, attention and monitoring, safety behavior, and beliefs. This study used path analysis to assess how well different...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Rerouting Hearing Aid Systems for Overcoming Simulated Unilateral Hearing in Dynamic Listening Situations
Objectives: Unilateral hearing loss increases the risk of academic and behavioral challenges for school-aged children. Previous research suggests that remote microphone (RM) systems offer the most consistent benefits for children with unilateral hearing loss in classroom environments relative to other nonsurgical interventions. However, generalizability of previous laboratory work is limited because of the specific listening situations evaluated, which often included speech and noise signals originating...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Coronavirus Disease 2019 Return to Work Guidance and Recommendations for Vestibular Clinicians
As states begin issuing progressive deconfinement guidelines, hospitals and institutions are starting to reopen for elective procedures and consultations. Vestibular clinicians are opening their practices to evaluate, test, or treat patients with dizziness and balance problems. The following document, requested by the American Balance Society, collates the current information about the virus, including transmission from asymptomatic carriers, decontamination, and other safety protocols, and provides...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Superior Canal Dehiscence Similarly Affects Cochlear Pressures in Temporal Bones and Audiograms in Patients
Objectives: The diagnosis of superior canal dehiscence (SCD) is challenging and audiograms play an important role in raising clinical suspicion of SCD. The typical audiometric finding in SCD is the combination of increased air conduction (AC) thresholds and decreased bone conduction thresholds at low frequencies. However, this pattern is not always apparent in audiograms of patients with SCD, and some have hearing thresholds that are within the normal reference range despite subjective reports...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Effects of Cognitive Load on Pure-Tone Audiometry Thresholds in Younger and Older Adults
Objectives: Cognitive load (CL) impairs listeners’ ability to comprehend sentences, recognize words, and identify speech sounds. Recent findings suggest that this effect originates in a disruption of low-level perception of acoustic details. Here, we attempted to quantify such a disruption by measuring the effect of CL (a two-back task) on pure-tone audiometry (PTA) thresholds. We also asked whether the effect of CL on PTA was greater in older adults, on account of their reduced ability to divide...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Assessing the Effect of Middle Ear Effusions on Wideband Acoustic Immittance Using Optical Coherence Tomography
Objectives: Wideband acoustic immittance (WAI) noninvasively assesses middle ear function by measuring the sound conduction over a range of audible frequencies. Although several studies have shown the potential of WAI for detecting the presence of middle ear effusions (MEEs), determining the effects of MEE type and amount on WAI in vivo has been challenging due to the anatomical location of middle ear cavity. The purpose of this study is to correlate WAI measurements with physical characteristics...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Relationship Between Speech Recognition in Quiet and Noise and Fitting Parameters, Impedances and ECAP Thresholds in Adult Cochlear Implant Users
Objectives: The objective of this study was to identify parameters which are related to speech recognition in quiet and in noise of cochlear implant (CI) users. These parameters may be important to improve current fitting practices. Design: Adult CI users who visited the Amsterdam UMC, location VUmc, for their annual follow-up between January 2015 and December 2017 were retrospectively identified. After applying inclusion criteria, the final study population consisted of 138 postlingually...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Modality Effects on Lexical Encoding and Memory Representations of Spoken Words
Objectives: The present study investigated presentation modality differences in lexical encoding and working memory representations of spoken words of older, hearing-impaired adults. Two experiments were undertaken: a memory-scanning experiment and a stimulus gating experiment. The primary objective of experiment 1 was to determine whether memory encoding and retrieval and scanning speeds are different for easily identifiable words presented in auditory-visual (AV), auditory-only (AO), and visual-only...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Identifying Cochlear Implant Channels With Relatively Poor Electrode-Neuron Interfaces Using the Electrically Evoked Compound Action Potential
Objectives: The primary objective of this study was to quantify local (within ear) and global (between ear) variation in the cochlear implant (CI) electrode-neuron interface (ENI) using the electrically evoked compound action potential (ECAP). We tested the hypothesis that, within an ear, ECAP measures can be used to identify channels with presumed good and poor ENIs, which may be influenced by a combination of spiral ganglion neuron (SGN) density, electrode position, and cochlear resistivity....
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Evaluating the Effect of Training Along With Fit Testing on Premolded Earplug Users in a Chinese Petrochemical Plant
Objectives: To gain insight into the current practice of hearing protection of Chinese workers and the value of hearing protection device (HPD) fit testing. Design: HPD fit testing was conducted on workers (N = 774) in a petrochemical plant in Eastern China who were on duty during the period of this study. The 3M E-A-Rfit Dual-Ear Validation System was used to measure the personal attenuation ratings (PARs) of a premolded earplug used at the work site. Repeated fit testing was conducted at...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Genes Implicated in Rare Congenital Inner Ear and Cochleovestibular Nerve Malformations
Objective: A small subset of children with congenital hearing loss have abnormal cochleovestibular nerves (i.e., absent, aplastic, or deficient cochlear nerves), with largely unknown etiology. Our objective was to investigate the underlying pathways and identify novel genetic variants responsible for cochleovestibular malformations and nerve abnormalities. It is our hypothesis that several cochleovestibular nerve abnormalities might share common causative pathways. Design: We used a family-based...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Maximum Output and Low-Frequency Limitations of B71 and B81 Clinical Bone Vibrators: Implications for Vestibular Evoked Potentials
Objectives: Bone-conducted vestibular evoked myogenic potentials (VEMPs) are tuned to have their maximum amplitude in response to tone bursts at or below 250 Hz. The low-frequency limitations of clinical bone vibrators have not been established for transient, tone burst stimuli at frequencies that are optimal for eliciting VEMPs. Design: Tone bursts with frequencies of 250 to 2000 Hz were delivered to B71 and B81 bone vibrators and their output was examined using an artificial mastoid. The...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Can Differences in Early Hearing Development Be Distinguished by the LittlEARs Auditory Questionnaire?
Objective: This study asks whether the LittlEARs Auditory Questionnaire (LEAQ), a caregiver measure, can differentiate between the early auditory development of children with bilateral cochlear implants (CIs), bilateral hearing aids (HAs), and children with Auditory Neuropathy Spectrum Disorder (ANSD) who wear CIs or HAs. The LEAQ is sensitive to impaired auditory development but has not previously been used to distinguish developmental changes between groups of children using different hearing...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Evidence of Vowel Discrimination Provided by the Acoustic Change Complex
Objectives: The objectives of this study were to measure the effects of level and vowel contrast on the latencies and amplitudes of acoustic change complex (ACC) in the mature auditory system. This was done to establish how the ACC in healthy young adults is affected by these stimulus parameters that could then be used to inform translation of the ACC into a clinical measure for the pediatric population. Another aim was to demonstrate that a normalized amplitude metric, calculated by dividing...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Cross-Sectional Analysis of Cognitive Dysfunction in Patients With Vestibular Disorders
Objective: The relationship of cognitive dysfunction and vestibular dysfunction has been established by various studies. However, the available Patient-Reported Outcome Measures questionnaires that address the main vestibular complaint fail to highlight this domain of dysfunction in this patient population. The objective of this study was to quantify and compare cognitive impairment using a validated cognitive questionnaire across several vestibular diagnoses. Study Design: Cross-sectional...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Interaction Between Electric and Acoustic Stimulation Influences Speech Perception in Ipsilateral EAS Users
Objectives: The aim of this study was to determine electric-acoustic masking in cochlear implant users with ipsilateral residual hearing and different electrode insertion depths and to investigate the influence on speech reception. The effects of different fitting strategies—meet, overlap, and a newly developed masking adjusted fitting (UNMASKfit)—on speech reception are compared. If electric-acoustic masking has a detrimental effect on speech reception, the individualized UNMASKfit map might...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Relationships Between Coping Behaviors and Social Loneliness in Adults With Self-reported Hearing Problems
Objectives: To determine the association between various coping behaviors and social loneliness (self-reported deficits in social integration and embeddedness) in adults with self-reported hearing problems. It is hypothesized that adults who frequently use adequate coping behaviors experience less feelings of social loneliness than persons who use these behaviors less often. Design: Cross-sectional data of 686 participants with hearing-impairment (24–75 years of age) of the online Netherlands...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Wideband Acoustic Immittance in Cochlear Implant Recipients: Reflectance and Stapedial Reflexes
Objectives: to characterize differences in wideband power reflectance for ears with and without cochlear implants (CIs), to describe electrically evoked stapedial reflex (eSR)-induced changes in reflectance, and to evaluate the benefit of a broadband probe for reflex threshold determination for CI recipients. It was hypothesized that reflectance patterns in ears with CIs would be consistent with increased middle ear stiffness and that reflex thresholds measured with a broadband probe would be...
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00
Response to Letter to the Editor: Do Pediatric Cochlear Implant Recipients Display Domain-General Sequencing Difficulties? A Comment on Davidson et al. (2019)
No abstract available
Ear and Hearing - Current Issue
Wed Jul 01, 2020 03:00

Δεν υπάρχουν σχόλια:

Δημοσίευση σχολίου

Αναζήτηση αυτού του ιστολογίου