scholarly journals Quantification of Speech-in-Noise and Sound Localisation Abilities in Children with Unilateral Hearing Loss and Comparison to Normal Hearing Peers

2015 ◽  
Vol 20 (Suppl. 1) ◽  
pp. 31-37 ◽  
Author(s):  
Ruth M. Reeder ◽  
Jamie Cadieux ◽  
Jill B. Firszt
Keyword(s):  
Hearing Loss ◽  
Treatment Options ◽  
Low Frequency ◽  
Normal Hearing ◽  
Unilateral Hearing Loss ◽  
Study Objective ◽  
Speech In Noise ◽  
Sound Localisation ◽  
Noise Type ◽  
Gender And Age

The study objective was to quantify abilities of children with unilateral hearing loss (UHL) on measures that address known deficits for this population, i.e. speech understanding in quiet and noise, and sound localisation. Noise conditions varied by noise type and source location. Parent reports of real-world abilities were also obtained. Performance was compared to gender- and age-matched normal hearing (NH) peers. UHL performance was poorer and more varied compared to NH peers. Among the findings, age correlated with localisation ability for UHL but not NH participants. Low-frequency hearing in the better ear of UHL children was associated with performance in noise; however, there was no relation for NH children. Considerable variability was evident in the outcomes of children with UHL and needs to be understood as future treatment options are considered.

scholarly journals EEG rhythms lateralization patterns in children with unilateral hearing loss are different from the patterns of normal hearing controls during speech-in-noise listening

2019 ◽  
Vol 379 ◽  
pp. 31-42 ◽  
Author(s):  
Giulia Cartocci ◽  
Alessandro Scorpecci ◽  
Gianluca Borghini ◽  
Anton Giulio Maglione ◽  
Bianca Maria Serena Inguscio ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Normal Hearing ◽  
Unilateral Hearing Loss ◽  
Eeg Rhythms ◽  
Speech In Noise

Low-Frequency Pitch Perception in Cochlear Implant Recipients With Normal Hearing in the Contralateral Ear

2019 ◽  
Vol 62 (8) ◽  
pp. 2860-2871 ◽  
Author(s):  
Margaret T. Dillon ◽  
Emily Buss ◽  
Meredith A. Rooth ◽  
English R. King ◽  
Harold C. Pillsbury ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Low Frequency ◽  
Normal Hearing ◽  
Pitch Perception ◽  
Matching Task ◽  
Unilateral Hearing Loss ◽  
Pitch Matching ◽  
Vocal Pitch ◽  
Contralateral Ear

Purpose Three experiments were carried out to evaluate the low-frequency pitch perception of adults with unilateral hearing loss who received a cochlear implant (CI). Method Participants were recruited from a cohort of CI users with unilateral hearing loss and normal hearing in the contralateral ear. First, low-frequency pitch perception was assessed for the 5 most apical electrodes at 1, 3, 6, and 12 months after CI activation using an adaptive pitch-matching task. Participants listened with a coding strategy that presents low-frequency temporal fine structure (TFS) and compared the pitch to that of an acoustic target presented to the normal hearing ear. Next, participants listened with an envelope-only, continuous interleaved sampling strategy. Pitch perception was compared between coding strategies to assess the influence of TFS cues on low-frequency pitch perception. Finally, participants completed a vocal pitch-matching task to corroborate the results obtained with the adaptive pitch-matching task. Results Pitch matches roughly corresponded to electrode center frequencies (CFs) in the CI map. Adaptive pitch matches exceeded the CF for the most apical electrode, an effect that was larger for continuous interleaved sampling than TFS. Vocal pitch matches were variable but correlated with the CF of the 3 most apical electrodes. There was no evidence that pitch matches changed between the 1- and 12-month intervals. Conclusions Relatively accurate and asymptotic pitch perception was observed at the 1-month interval, indicating either very rapid acclimatization or the provision of familiar place and rate cues. Early availability of appropriate pitch cues could have played a role in the early improvements in localization and masked speech recognition previously observed in this cohort. Supplemental Material https://doi.org/10.23641/asha.8862389

scholarly journals Distorted tonotopy severely degrades neural representations of natural speech in noise following acoustic trauma

2021 ◽  
Author(s):  
Satyabrata Parida ◽  
Michael G. Heinz
Keyword(s):  
Hearing Loss ◽  
Noise Exposure ◽  
Frequency Tuning ◽  
Normal Hearing ◽  
Temporal Coding ◽  
Natural Speech ◽  
Auditory Nerve Fiber ◽  
Temporal Precision ◽  
Speech In Noise ◽  
Neurophysiological Studies

SUMMARYListeners with sensorineural hearing loss (SNHL) struggle to understand speech, especially in noise, despite audibility compensation. These real-world suprathreshold deficits are hypothesized to arise from degraded frequency tuning and reduced temporal-coding precision; however, peripheral neurophysiological studies testing these hypotheses have been largely limited to in-quiet artificial vowels. Here, we measured single auditory-nerve-fiber responses to a natural speech sentence in noise from anesthetized chinchillas with normal hearing (NH) or noise-induced hearing loss (NIHL). Our results demonstrate that temporal precision was not degraded, and broader tuning was not the major factor affecting peripheral coding of natural speech in noise. Rather, the loss of cochlear tonotopy, a hallmark of normal hearing, had the most significant effects (both on vowels and consonants). Because distorted tonotopy varies in degree across etiologies (e.g., noise exposure, age), these results have important implications for understanding and treating individual differences in speech perception for people suffering from SNHL.

Modulation Detection Interference in Listeners With Normal and Impaired Hearing

2002 ◽  
Vol 45 (2) ◽  
pp. 392-402 ◽  
Author(s):  
Sid P. Bacon ◽  
Jane M. Opie
Keyword(s):  
Hearing Loss ◽  
Normal Hearing ◽  
Individual Variability ◽  
Frequency Region ◽  
Unilateral Hearing Loss ◽  
Impaired Hearing ◽  
Sensation Level ◽  
Bilateral Hearing Loss ◽  
Cochlear Hearing Loss ◽  
Modulation Detection Interference

Listeners were asked to detect amplitude modulation (AM) of a target (or signal) carrier that was presented in isolation or in the presence of an additional (masker) carrier. The signal was modulated at a rate of 10 Hz, and the masker was unmodulated or was modulated at a rate of 2, 10, or 40 Hz. Nine listeners had normal hearing, 4 had a bilateral hearing loss, and 4 had a unilateral hearing loss; those with a unilateral loss were tested in both ears. The listeners with a hearing loss had normal hearing at 1 kHz and a 30- to 40-dB loss at 4 kHz. The carrier frequencies were 984 and 3952 Hz. In one set of conditions, the lower frequency carrier was the signal and the higher frequency carrier was the masker. In the other set, the reverse was true. For the impaired ears, the carriers were presented at 70 dB SPL. For the normal ears, either the carriers were both presented at 70 dB SPL or the higher frequency carrier was reduced to 40 dB SPL to simulate the lower sensation level experienced by the impaired ears. There was considerable individual variability in the results, and there was no clear effect of hearing loss. These results suggest that a mild, presumably cochlear hearing loss does not affect the ability to process AM in one frequency region in the presence of competing AM from another region.

Low-Frequency Gain Compensation in Directional Hearing Aids

2002 ◽  
Vol 11 (1) ◽  
pp. 29-41 ◽  
Author(s):  
Todd Ricketts ◽  
Paula Henry
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Low Frequency ◽  
Sound Quality ◽  
Directional Hearing ◽  
Low Frequencies ◽  
Speech In Noise ◽  
Directional Microphone ◽  
Listening Environments ◽  
Gain Compensation

Hearing aids currently available on the market with both omnidirectional and directional microphone modes often have reduced amplification in the low frequencies when in directional microphone mode due to better phase matching. The effects of this low-frequency gain reduction for individuals with hearing loss in the low frequencies was of primary interest. Changes in sound quality for quiet listening environments following gain compensation in the low frequencies was of secondary interest. Thirty participants were fit with bilateral in-the-ear hearing aids, which were programmed in three ways while in directional microphone mode: no-gain compensation, adaptive-gain compensation, and full-gain compensation. All participants were tested with speech in noise tasks. Participants also made sound quality judgments based on monaural recordings made from the hearing aid. Results support a need for gain compensation for individuals with low-frequency hearing loss of greater than 40 dB HL.

Communication Development in Early-Identified Children With Mild Bilateral and Unilateral Hearing Loss

2015 ◽  
Vol 24 (3) ◽  
pp. 349-353 ◽  
Author(s):  
Elizabeth M. Fitzpatrick ◽  
Andrée Durieux-Smith ◽  
Isabelle Gaboury ◽  
Douglas Coyle ◽  
JoAnne Whittingham
Keyword(s):  
Hearing Loss ◽  
Longitudinal Study ◽  
Additional Data ◽  
Language Skills ◽  
Normal Hearing ◽  
Ongoing Study ◽  
Unilateral Hearing Loss ◽  
Communication Development ◽  
Language Measures

Purpose This clinical focus article provides preliminary findings from a multicenter longitudinal study investigating auditory and communication development in children with mild bilateral or unilateral hearing loss of any degree. Method A total of 100 children (55 with mild bilateral or unilateral hearing loss and 45 with normal hearing) underwent 1 or more assessments from a battery of auditory and language measures. Results Children up to age 4 years demonstrated auditory and language skills similar to those of children with normal hearing. Conclusions Factors that affect outcomes in communication development will be explored as additional data are collected in this ongoing study.

Temporal Processing in Low-Frequency Channels: Effects of Age and Hearing Loss in Middle-Aged Listeners

2011 ◽  
Vol 22 (07) ◽  
pp. 393-404 ◽  
Author(s):  
Elizabeth D. Leigh-Paffenroth ◽  
Saravanan Elangovan
Keyword(s):  
Hearing Loss ◽  
Word Recognition ◽  
Temporal Processing ◽  
Background Noise ◽  
Pure Tone ◽  
Low Frequency ◽  
Normal Hearing ◽  
Gap Detection ◽  
Middle Aged ◽  
Hearing Sensitivity

Background: Hearing loss and age interfere with the auditory system's ability to process temporal changes in the acoustic signal. A key unresolved question is whether high-frequency sensorineural hearing loss (HFSNHL) affects temporal processing in the low-frequency region where hearing loss is minimal or nonexistent. A second unresolved question is whether changes in hearing occur in middle-aged subjects in the absence of HFSNHL. Purpose: The purpose of this study was twofold: (1) to examine the influence of HFSNHL and aging on the auditory temporal processing abilities of low-frequency auditory channels with normal hearing sensitivity and (2) to examine the relations among gap detection measures, self-assessment reports of understanding speech, and functional measures of speech perception in middle-aged individuals with and without HFSNHL. Research Design: The subject groups were matched for either age (middle age) or pure-tone sensitivity (with or without hearing loss) to study the effects of age and HFSNHL on behavioral and functional measures of temporal processing and word recognition performance. These effects were analyzed by individual repeated-measures analyses of variance. Post hoc analyses were performed for each significant main effect and interaction. The relationships among the measures were analyzed with Pearson correlations. Study Sample: Eleven normal-hearing young adults (YNH), eight normal-hearing middle-aged adults (MANH), and nine middle-aged adults with HFSNHL were recruited for this study. Normal hearing sensitivity was defined as pure-tone thresholds ≤25 dB HL for octave frequencies from 250 to 8000 Hz. HFSNHL was defined as pure-tone thresholds ≤25 dB HL from 250 to 2000 Hz and ≥35 dB HL from 3000 to 8000 Hz. Data Collection and Analysis: Gap detection thresholds (GDTs) were measured under within-channel and between-channel conditions with the stimulus spectrum limited to regions of normal hearing sensitivity for the HFSNHL group (i.e., <2000 Hz). Self-perceived hearing problems were measured by a questionnaire (Abbreviated Profile of Hearing Aid Benefit), and word recognition performance was assessed under four conditions: quiet and babble, with and without low-pass filtering (cutoff frequency = 2000 Hz). Results: The effects of HFSNHL and age were found for gap detection, self-perceived hearing problems, and word recognition in noise. The presence of HFSNHL significantly increased GDTs for stimuli presented in regions of normal pure-tone sensitivity. In addition, middle-aged subjects with normal hearing sensitivity reported significantly more problems hearing in background noise than the young normal-hearing subjects. Significant relationships between self-report measures of hearing ability in background noise and word recognition in babble were found. Conclusions: The conclusions from the present study are twofold: (1) HFSNHL may have an off-channel impact on auditory temporal processing, and (2) presenescent changes in the auditory system of MANH subjects increased self-perceived problems hearing in background noise and decreased functional performance in background noise compared with YNH subjects.

scholarly journals Increased risk of psychopathological abnormalities in subjects with unilateral hearing loss: A cross-sectional study

2020 ◽  
Author(s):  
Jae-Jin Song ◽  
Eu Jeong Ku ◽  
Seoyoung Kim ◽  
Euitae Kim ◽  
Young-Seok Choi ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Behavioral Problems ◽  
Cross Sectional Study ◽  
Normal Hearing ◽  
Unilateral Hearing Loss ◽  
Personality Test ◽  
Cross Sectional ◽  
Increased Risk ◽  
The Military ◽  
Test Profiles

Objective. Although unilateral hearing loss (UHL) has been proven to be associated with educational and behavioral problems, there are few studies on psychopathological abnormalities in this population. The aim of this study was to evaluate the psychopathological influence of UHL among Korean 19-year-old males.Methods. The authors retrospectively compared the objective personality test profiles of 602 subjects with UHL with those of 23,790 normal hearing peers. All participants in the current study were 19-year-old males who underwent physical examination and investigated the Korean Military Multiphasic Personality Inventory for conscription at the Military Manpower Administration from February 2015 to December 2016.Results. The neurosis scales revealed significantly higher scores in the UHL group as compared to the normal hearing group (50.9

Effect of Cochlear Implantation on Quality of Life in Adults with Unilateral Hearing Loss

2017 ◽  
Vol 22 (4-5) ◽  
pp. 259-271 ◽  
Author(s):  
Margaret T. Dillon ◽  
Emily Buss ◽  
Meredith A. Rooth ◽  
English R. King ◽  
Ellen J. Deres ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implantation ◽  
Normal Hearing ◽  
Unilateral Hearing Loss ◽  
Behavioral Measures ◽  
Speech Perception In Noise ◽  
Contralateral Ear

Objective: Patients with moderate-to-profound sensorineural hearing loss in 1 ear and normal hearing in the contralateral ear, known as unilateral hearing loss (UHL) or single-sided deafness (SSD), may experience improved quality of life with the use of a cochlear implant (CI) in the affected ear. Quality of life assessment before and after implantation may reveal changes to aspects of hearing beyond those explicitly evaluated with behavioral measures. Methods: The present report completed 2 experiments investigating quality of life outcomes in CI recipients with UHL. The first experiment assessed quality of life during the 1st year of device use with 3 questionnaires: the Speech, Spatial, and Qualities of Hearing Scale (SSQ), the Abbreviated Profile of Hearing Aid Benefit (APHAB), and the Tinnitus Handicap Inventory. Twenty subjects were evaluated preoperatively and 1, 3, 6, 9, and 12 months post-activation. Quality of life results were compared over the study period using traditional scoring methods and the SSQ pragmatic subscales. Subscales specific to localization and speech perception in noise were compared to behavioral measures at the preoperative and 12-month intervals. The 2nd experiment evaluated quality of life preoperatively and at the 12-month interval for CI recipients with UHL and CI recipients with bilateral hearing loss, including conventional CI users and those listening with electric-acoustic stimulation (EAS). The 3 cohorts differed in CI candidacy criteria, including the amount of residual hearing in the contralateral ear. Results: For subjects with moderate-to-profound UHL, receipt of a CI significantly improved quality of life, with benefits noted as early as 1 month after initial activation. The UHL cohort reported less perceived difficulty at the pre- and postoperative intervals than the conventional CI and EAS cohorts, which may be due to the presence of the normal-hearing ear. Each group experienced a significant benefit in quality of life on the APHAB with CI use. Conclusions: Cochlear implantation in cases of substantial UHL may offer significant improvements in quality of life. Quality of life measures revealed a reduction in perceived tinnitus severity and subjective improvements in speech perception in noise, spatial hearing, and listening effort. While self-report of difficulties were lower for the UHL cohort than the conventional CI and EAS cohorts, subjects in all 3 groups reported an improvement in quality of life with CI use.

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