scholarly journals The effortful and invisible cost of repairing speech misperceptions by individuals who use cochlear implants

2021 ◽  
Author(s):  
Matthew Winn ◽  
Katherine Teece
Keyword(s):  
Hearing Loss ◽  
Cochlear Implants ◽  
Normal Hearing ◽  
Verbal Response ◽  
External Observer ◽  
Percent Correct ◽  
Extra Effort ◽  
Audio Recordings ◽  
Mere Presence ◽  
Reconstruction Of Words

PurposeSpeech recognition percent-correct scores fail to capture the effort of mentally repairing the perception of speech that was initially misheard. This study includes two experiments to simulate and measure the effort of this experience of mental repair, from the perspective of both listener and talker.MethodsCochlear implant (CI) listeners heard and repeated sentences where single words were distorted or masked by noise, but recoverable based on later context – a signature of mental repair. Changes in pupil dilation were tracked as an index of effort and time-locked with specific landmarks during perception. Later, audio recordings of the participants’ responses were played for outside observers who judged whether they thought the CI user mentally repaired a word.ResultsEffort significantly increases when a listener needs to repair a misperceived word, even if the verbal response is ultimately correct. That increased effort lasts longer for CI users than for listeners with normal hearing. There was no success in detecting that effort by nearly 200 external observers including audiologists and others who profess to have experience and skill in conversing with people who have hearing loss. Mental repair of words in a sentence were accompanied by greater prevalence of errors elsewhere in the same sentence, suggesting that effort spreads to consume resources across time. ConclusionsListening effort is better explained by the mental repair and reconstruction of words rather than the appearance of correct or incorrect perception. Linguistic coherence drives effort more heavily than the mere presence of mistakes, highlighting the importance of effort that cannot be tracked with individual words or digits. However, an external observer is not able to reliably detect that extra effort in the listener’s voice.

scholarly journals Factors associated with hearing loss in a normal-hearing guinea pig model of hybrid cochlear implants

2014 ◽  
Vol 316 ◽  
pp. 82-93 ◽  
Author(s):  
Chiemi Tanaka ◽  
Anh Nguyen-Huynh ◽  
Katherine Loera ◽  
Gemaine Stark ◽  
Lina Reiss
Keyword(s):  
Hearing Loss ◽  
Guinea Pig ◽  
Cochlear Implants ◽  
Normal Hearing ◽  
Pig Model ◽  
Factors Associated ◽  
Guinea Pig Model

scholarly journals Production of Greek vowels by hearing-impaired children

2020 ◽  
Author(s):  
Elina Nirgianaki ◽  
Maria Bitzanaki
Keyword(s):  
Hearing Loss ◽  
Cochlear Implants ◽  
High Dimension ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Acoustic Characteristics ◽  
Significant Difference ◽  
Impaired Group ◽  
Impaired Children ◽  
Hearing Impaired Children

The present study investigates the acoustic characteristics of Greek vowels produced by hearing-impaired children with profound prelingual hearing loss and cochlear implants. The results revealed a significant difference between vowels produced by hearingimpaired children and those produced by normal-hearing ones in terms of duration. Stressed vowels were significantly longer than non-stressed for both groups, while F0, F1 and F2 did not differ significantly between the two groups for any vowel, with the exception of /a/, which had significantly higher F1 when produced by hearingimpaired children. Acoustic vowel spaces were similar for the two groups but shifted towards higher frequencies in the low-high dimension and somehow reduced in the front-back dimension for the hearing-impaired group.

scholarly journals Listening Effort Measured in Adults with Normal Hearing and Cochlear Implants

2017 ◽  
Vol 28 (08) ◽  
pp. 685-697 ◽  
Author(s):  
Ann E. Perreau ◽  
Yu-Hsiang Wu ◽  
Bailey Tatge ◽  
Diana Irwin ◽  
Daniel Corts
Keyword(s):  
Working Memory ◽  
Hearing Loss ◽  
Cochlear Implants ◽  
Dual Task ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Normal Hearing ◽  
Primary Task ◽  
Listening Effort ◽  
Significant Difference

AbstractStudies have examined listening effort in individuals with hearing loss to determine the extent of the impairment. Regarding cochlear implants (CIs), results suggest that listening effort is improved using bilateral CIs compared to unilateral CIs. Few studies have investigated listening effort and outcomes related to the hybrid CI.Here, we compared listening effort across three CI groups, and to a normal-hearing control group. The impact of listener traits, that is, age, age at onset of hearing loss, duration of CI use, and working memory capacity, were examined relative to listening effort.The participants completed a dual-task paradigm with a primary task identifying sentences in noise and a secondary task measuring reaction time on a Stroop test. Performance was assessed for all participant groups at different signal-to-noise ratios (SNRs), ranging in 2-dB steps from 0 to +10 dB relative to an individual’s SNR-50, at which the speech recognition performance is 50% correct. Participants completed three questions on listening effort, the Spatial Hearing Questionnaire, and a reading span test.All 46 participants were adults. The four participant groups included (1) 12 individuals with normal hearing, (2) 10 with unilateral CIs, (3) 12 with bilateral CIs, and (4) 12 with a hybrid short-electrode CI and bilateral residual hearing.Results from the dual-task experiment were compared using a mixed 4 (hearing group) by 6 (SNR condition) analysis of variance (ANOVA). Questionnaire results were compared using one-way ANOVAs, and correlations between listener traits and the objective and subjective measures were compared using Pearson correlation coefficients.Significant differences were found in speech perception among the normal-hearing and the unilateral and the bilateral CI groups. There was no difference in primary task performance among the hybrid CI and the normal-hearing groups. Across the six SNR conditions, listening effort improved to a greater degree for the normal-hearing group compared to the CI groups. However, there was no significant difference in listening effort between the CI groups. The subjective measures revealed significant differences between the normal-hearing and CI groups, but no difference among the three CI groups. Across all groups, age was significantly correlated with listening effort. We found no relationship between listening effort and the age at the onset of hearing loss, age at implantation, the duration of CI use, and working memory capacity for these participants.Listening effort was reduced to a greater degree for the normal-hearing group compared to the CI users. There was no significant difference in listening effort among the CI groups. For the CI users in this study, age was a significant factor with regard to listening effort, whereas other variables such as the duration of CI use and the age at the onset of hearing loss were not significantly related to listening effort.

scholarly journals Academic Outcomes for School-Aged Children With Severe–Profound Hearing Loss and Early Unilateral and Bilateral Cochlear Implants

2015 ◽  
Vol 58 (3) ◽  
pp. 1017-1032 ◽  
Author(s):  
Julia Z. Sarant ◽  
David C. Harris ◽  
Lisa A. Bennet
Keyword(s):  
Hearing Loss ◽  
Academic Success ◽  
Cochlear Implants ◽  
Family Environment ◽  
Oral Language ◽  
Academic Outcomes ◽  
Standardized Test ◽  
Normal Hearing ◽  
Written Language ◽  
Profound Hearing Loss

Purpose This study sought to (a) determine whether academic outcomes for children who received early cochlear implants (CIs) are age appropriate, (b) determine whether bilateral CI use significantly improves academic outcomes, and (c) identify other factors that are predictive of these outcomes. Method Forty-four 8-year-old children with severe–profound hearing loss participated in this study. Their academic development in mathematics, oral language, reading, and written language was assessed using a standardized test of academic achievement. Results (a) Across all academic areas, the proportion of children in the average or above-average ranges was lower than expected for children with normal hearing. The strongest area of performance was written language, and the weakest was mathematics. (b) Children using bilateral CIs achieved significantly higher scores for oral language, math, and written language, after controlling for predictive factors, than did children using unilateral CIs. Younger ages at second CI predicted the largest improvements. (c) High levels of parental involvement and greater time spent by children reading significantly predicted academic success, although other factors were identified. Conclusions Average academic outcomes for these children were below those of children with normal hearing. Having bilateral CIs at younger ages predicted the best outcomes. Family environment was also important to children's academic performance.

scholarly journals Cognitive functioning in Deaf children using Cochlear implants

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fidaa Almomani ◽  
Murad O. Al-momani ◽  
Soha Garadat ◽  
Safa Alqudah ◽  
Manal Kassab ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cognitive Development ◽  
Cognitive Functioning ◽  
Cochlear Implants ◽  
Cognitive Abilities ◽  
Human Action ◽  
Normal Hearing ◽  
Deaf Children ◽  
Cognitive Improvement ◽  
Children With Hearing Loss

Abstract Background Cognitive abilities like language, memory, reasoning, visualization, and perceptual functioning shape human action and are considered critical to the successful interaction with the environment. Alternatively, hearing loss can disrupt a child’s ability to communicate, and negatively impact cognitive development. Cochlear implants (CI) restore auditory input thereby supporting communication and may enhance cognitive performance. This study compares general cognitive development after cochlear implantation (2017–2019) in two groups of Jordanian children implanted earlier (age:4–6 years, N = 22) and later (7–9 years, N = 16) to the development of randomly selected normal hearing peers (N = 48). Design Visualization, reasoning, memory, and attention were assessed using the Leiter-R scale at baseline (before implantation), 8 months and 16 months post implantation for children with hearing loss. Same times of testing (baseline, 8 months and 16 months) were used for normal hearing peers. Results Over the 16-month period, the cognitive improvement of 4–6-year-old deaf children was greater than that of their normal hearing peers on the scales of visualization (5.62 vs. 4.40), reasoning (2.53 vs. 2.38) and memory (17.19 vs. 11.67). while the improvement of 7–9-year-old was less major than that of their normal hearing peers on all scales. Conclusions These results suggest that CI not only enhances communication skills but may improve cognitive functioning in deaf children. However, the extent of this improvement was dependent on age at intervention; current results demonstrated that the children received CI at young ages had better cognitive improvements.

scholarly journals Singing Proficiency of Members of a Choir Formed by Prelingually Deafened Children With Cochlear Implants

2019 ◽  
Vol 62 (5) ◽  
pp. 1561-1573 ◽  
Author(s):  
Jing Yang ◽  
Qi Liang ◽  
Haotong Chen ◽  
Yanjun Liu ◽  
Li Xu
Keyword(s):  
Cochlear Implants ◽  
Acoustic Analysis ◽  
High Accuracy ◽  
Normal Hearing ◽  
Mean Deviation ◽  
Mean Absolute Deviation ◽  
Absolute Deviation ◽  
Music Training ◽  
Percent Correct ◽  
F0 Contour

PurposeA group of 10 prelingually deafened children with cochlear implants (CIs) formed a choir and received 21 months of formal music training. The purpose of this study was to evaluate the singing proficiency of these children.MethodThe participants included all choir members (7 girls and 3 boys, mean age of 9.5 years old) who were unilateral CI users. Meanwhile, 8 age-matched children with normal hearing were recruited as controls and were trained on 1 song for 2 weeks. Individual singing samples without instrument accompaniment were recorded from all participants. The singing samples were subject to acoustic analysis in which the fundamental frequency (F0) of each note was extracted and the duration was measured. Five metrics were developed and computed to quantify the accuracy of their pitch and rhythm performance. The 5 metrics included (a) percent correct of F0 contour direction of adjacent notes, (b) mean deviation of the normalized F0 across the notes, (c) mean deviation of the pitch intervals, (d) mean deviation of adjacent note duration ratio, and (e) mean absolute deviation of note duration.ResultsThe choir members with CIs demonstrated high accuracy in both pitch and tempo measures and performed on par with the children with normal hearing. Early start of music training after implantation and use of bimodal hearing contributed to the development of better music ability in these children with CIs.ConclusionThese findings indicated that rigorous music training could facilitate high singing proficiency in prelingually deafened children with CIs.

scholarly journals Functional Consequences of Poor Binaural Hearing in Development: Evidence From Children With Unilateral Hearing Loss and Children Receiving Bilateral Cochlear Implants

2021 ◽  
Vol 25 ◽  
pp. 233121652110512
Author(s):  
Claire McSweeny ◽  
Sharon L. Cushing ◽  
Jennifer L. Campos ◽  
Blake C. Papsin ◽  
Karen A. Gordon
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implants ◽  
Verbal Memory ◽  
Binaural Hearing ◽  
Normal Hearing ◽  
Unilateral Hearing Loss ◽  
Visuospatial Memory ◽  
Bilateral Cochlear Implants ◽  
Academic Deficits

Poor binaural hearing in children was hypothesized to contribute to related cognitive and academic deficits. Children with unilateral hearing have normal hearing in one ear but no access to binaural cues. Their cognitive and academic deficits could be unique from children receiving bilateral cochlear implants (CIs) at young ages who have poor access to spectral cues and impaired binaural sensitivity. Both groups are at risk for vestibular/balance deficits which could further contribute to memory and learning challenges. Eighty-eight children (43 male:45 female, aged 9.89  ±  3.40 years), grouped by unilateral hearing loss ( n = 20), bilateral CI ( n = 32), and typically developing ( n = 36), completed a battery of sensory, cognitive, and academic tests. Analyses revealed that children in both hearing loss groups had significantly poorer skills (accounting for age) on most tests than their normal hearing peers. Children with unilateral hearing loss had more asymmetric speech perception than children with bilateral CIs ( p < .0001) but balance and language deficits ( p = .0004, p < .0001, respectively) were similar in the two hearing loss groups ( p > .05). Visuospatial memory deficits occurred in both hearing loss groups ( p = .02) but more consistently across tests in children with unilateral hearing loss. Verbal memory was not significantly different than normal ( p > .05). Principal component analyses revealed deficits in a main cluster of visuospatial memory, oral language, mathematics, and reading measures (explaining 46.8% data variability). The remaining components revealed clusters of self-reported hearing, balance and vestibular function, and speech perception deficits. The findings indicate significant developmental impacts of poor binaural hearing in children.

The Acquisition of Productive Plural Morphology by Children With Hearing Loss

2020 ◽  
Vol 63 (2) ◽  
pp. 552-568 ◽  
Author(s):  
Benjamin Davies ◽  
Nan Xu Rattanasone ◽  
Aleisha Davis ◽  
Katherine Demuth
Keyword(s):  
Hearing Loss ◽  
Cochlear Implants ◽  
Hearing Aids ◽  
Normal Hearing ◽  
Forced Choice ◽  
Choice Task ◽  
Robust Representation ◽  
Different Types ◽  
Forced Choice Task ◽  
Children With Hearing Loss

Purpose Normal-hearing (NH) children acquire plural morphemes at different rates, with the segmental allomorphs /–s, –z/ (e.g., cat-s ) being acquired before the syllabic allomorph /–əz/ (e.g., bus-es ). Children with hearing loss (HL) have been reported to show delays in the production of plural morphology, raising the possibility that this might be due to challenges acquiring different types of lexical/morphological representations. This study therefore examined the comprehension of plural morphology by 3- to 7-year-olds with HL and compared this with performance by their NH peers. We also investigated comprehension as a function of wearing hearing aids (HAs) versus cochlear implants (CIs). Method Participants included 129 NH children aged 3–5 years and 25 children with HL aged 3–7 years (13 with HAs, 12 with CIs). All participated in a novel word two-alternative forced-choice task presented on an iPad. The task tested comprehension of the segmental (e.g., teps, mubz ) and syllabic (e.g., kosses ) plural, as well as their singular counterparts (e.g., tep, mub, koss ). Results While the children with NH were above chance for all conditions, those with HL performed at chance. As a group, the performance of the children with HL did not improve with age. However, results suggest possible differences between children with HAs and those with CIs, where those with HAs appeared to be in the process of developing representations of consonant–vowel–consonant singulars. Conclusions Results suggest that preschoolers with HL do not yet have a robust representation of plural morphology for words they have not heard before. However, those with HAs are beginning to access the singular/plural system as they get older.

Prosody Perception and Production in Children with Hearing Loss and Age- and Gender-Matched Controls

2017 ◽  
Vol 28 (04) ◽  
pp. 283-294 ◽  
Author(s):  
Rose Thomas Kalathottukaren ◽  
Suzanne C. Purdy ◽  
Elaine Ballard
Keyword(s):  
Hearing Loss ◽  
Cochlear Implants ◽  
Hearing Aids ◽  
Normal Hearing ◽  
Control Group ◽  
Hearing Level ◽  
Typically Developing ◽  
Age And Gender ◽  
Children With Hearing Loss ◽  
And Gender

Background: Auditory development in children with hearing loss, including the perception of prosody, depends on having adequate input from cochlear implants and/or hearing aids. Lack of adequate auditory stimulation can lead to delayed speech and language development. Nevertheless, prosody perception and production in people with hearing loss have received less attention than other aspects of language. The perception of auditory information conveyed through prosody using variations in the pitch, amplitude, and duration of speech is not usually evaluated clinically. Purpose: This study (1) compared prosody perception and production abilities in children with hearing loss and children with normal hearing; and (2) investigated the effect of age, hearing level, and musicality on prosody perception. Research Design: Participants were 16 children with hearing loss and 16 typically developing controls matched for age and gender. Fifteen of the children with hearing loss were tested while using amplification (n = 9 hearing aids, n = 6 cochlear implants). Six receptive subtests of the Profiling Elements of Prosody in Speech-Communication (PEPS-C), the Child Paralanguage subtest of Diagnostic Analysis of Nonverbal Accuracy 2 (DANVA 2), and Contour and Interval subtests of the Montreal Battery of Evaluation of Amusia (MBEA) were used. Audio recordings of the children’s reading samples were rated using a perceptual prosody rating scale by nine experienced listeners who were blinded to the children’s hearing status. Study Sample: Thirty two children, 16 with hearing loss (mean age = 8.71 yr) and 16 age- and gender-matched typically developing children with normal hearing (mean age = 8.87 yr). Data Collection and Analysis: Assessments were completed in one session lasting 1–2 hours in a quiet room. Test items were presented using a laptop computer through loudspeaker at a comfortable listening level. For children with hearing loss using hearing instruments, all tests were completed with hearing devices set at their everyday listening setting. Results: All PEPS-C subtests and total scores were significantly lower for children with hearing loss compared to controls (p < 0.05). The hearing loss group performed more poorly than the control group in recognizing happy, sad, and fearful emotions in the DANVA 2 subtest. Musicality (composite MBEA scores and musical experience) was significantly correlated with prosody perception scores, but this link was not evident in the regression analyses. Regression modeling showed that age and hearing level (better ear pure-tone average) accounted for 55.4% and 56.7% of the variance in PEPS-C and DANVA 2 total scores, respectively. There was greater variability for the ratings of pitch, pitch variation, and overall impression of prosody in the hearing loss group compared to control group. Prosody perception (PEPS-C and DANVA 2 total scores) and ratings of prosody production were not correlated. Conclusions: Children with hearing loss aged 7–12 yr had significant difficulties in understanding different aspects of prosody and were rated as having more atypical prosody overall than controls. These findings suggest that clinical assessment and speech–language therapy services for children with hearing loss should be expanded to target prosodic difficulties. Future studies should investigate whether musical training is beneficial for improving receptive prosody skills.

scholarly journals Listening effort: Not just a function of speech intelligibility scores

2020 ◽  
Author(s):  
Matthew Winn ◽  
Katherine H. Teece
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Pupil Size ◽  
Speech Intelligibility ◽  
Normal Hearing ◽  
Listening Effort ◽  
Wrong Answer ◽  
Percent Correct ◽  
Sentence Repetition ◽  
Whole Word

Speech perception and listening effort are complicated and interrelated concepts. One might assume that intelligibility performance (percent correct) is a proxy for listening effort, but there are some reasons to challenge whether that is actually true. Correct responses in speech perception tests could reflect effortful mental processing, and a completely wrong answer could evoke very little effort, especially if the misperception itself is linguistically well-formed and sensible. This paper presents evidence that listening effort is not a function of the proportion of words correct, but is rather driven by the types of errors, position of errors within a sentence, and the need to resolve ambiguity, reflecting how easily the listener can make sense of a perception. We offer a taxonomy of error types that is both intuitive and also consistent with data from two experiments measuring listening effort with careful controls to either elicit specific kinds of mistakes or to track specific mistakes retrospectively. Participants included individuals with normal hearing or with cochlear implants. In two experiments of sentence repetition, listening effort – indexed by changes in pupil size – was found to scale with the amount of perceptual restoration needed (phoneme versus whole word), and also scale with the sensibility of responses, but not with the number of intelligibility errors. Although mental corrective action and number of mistakes can scale together in many experiments, it is possible to dissociate them in order to advance toward a more explanatory (rather than correlational) account of listening effort.

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