scholarly journals Individual Hearing Outcomes in Cochlear Implant Users Influence Social Engagement and Listening Behavior in Everyday Life

2021 ◽  
pp. 1-18
Author(s):  
Erin R. O'Neill ◽  
John D. Basile ◽  
Peggy Nelson
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Everyday Life ◽  
Social Engagement ◽  
Speech Intelligibility ◽  
Daily Life ◽  
Coping Behavior ◽  
Listening Behavior ◽  
Listening Strategies ◽  
Hearing Outcomes

Purpose The goal of this study was to assess the listening behavior and social engagement of cochlear implant (CI) users and normal-hearing (NH) adults in daily life and relate these actions to objective hearing outcomes. Method Ecological momentary assessments (EMAs) collected using a smartphone app were used to probe patterns of listening behavior in CI users and age-matched NH adults to detect differences in social engagement and listening behavior in daily life. Participants completed very short surveys every 2 hr to provide snapshots of typical, everyday listening and socializing, as well as longer, reflective surveys at the end of the day to assess listening strategies and coping behavior. Speech perception testing, with accompanying ratings of task difficulty, was also performed in a lab setting to uncover possible correlations between objective and subjective listening behavior. Results Comparisons between speech intelligibility testing and EMA responses showed poorer performing CI users spending more time at home and less time conversing with others than higher performing CI users and their NH peers. Perception of listening difficulty was also very different for CI users and NH listeners, with CI users reporting little difficulty despite poor speech perception performance. However, both CI users and NH listeners spent most of their time in listening environments they considered “not difficult.” CI users also reported using several compensatory listening strategies, such as visual cues, whereas NH listeners did not. Conclusion Overall, the data indicate systematic differences between how individual CI users and NH adults navigate and manipulate listening and social environments in everyday life.

scholarly journals Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity

2010 ◽  
Vol 10 ◽  
pp. 329-339 ◽  
Author(s):  
Torsten Rahne ◽  
Michael Ziese ◽  
Dorothea Rostalski ◽  
Roland Mühler
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Mismatch Negativity ◽  
Speech Intelligibility ◽  
Event Related Potentials ◽  
Normal Hearing ◽  
Discrimination Test ◽  
Speech Database ◽  
Automated Speech Recognition ◽  
Related Potentials

This paper describes a logatome discrimination test for the assessment of speech perception in cochlear implant users (CI users), based on a multilingual speech database, the Oldenburg Logatome Corpus, which was originally recorded for the comparison of human and automated speech recognition. The logatome discrimination task is based on the presentation of 100 logatome pairs (i.e., nonsense syllables) with balanced representations of alternating “vowel-replacement” and “consonant-replacement” paradigms in order to assess phoneme confusions. Thirteen adult normal hearing listeners and eight adult CI users, including both good and poor performers, were included in the study and completed the test after their speech intelligibility abilities were evaluated with an established sentence test in noise. Furthermore, the discrimination abilities were measured electrophysiologically by recording the mismatch negativity (MMN) as a component of auditory event-related potentials. The results show a clear MMN response only for normal hearing listeners and CI users with good performance, correlating with their logatome discrimination abilities. Higher discrimination scores for vowel-replacement paradigms than for the consonant-replacement paradigms were found. We conclude that the logatome discrimination test is well suited to monitor the speech perception skills of CI users. Due to the large number of available spoken logatome items, the Oldenburg Logatome Corpus appears to provide a useful and powerful basis for further development of speech perception tests for CI users.

Assessment and Outcome in Non-Traditional Cochlear Implant Candidates

2016 ◽  
Vol 21 (6) ◽  
pp. 383-390 ◽  
Author(s):  
Rebecca L. Heywood ◽  
Deborah A. Vickers ◽  
Francesca Pinto ◽  
George Fereos ◽  
Azhar Shaida
Keyword(s):  
New York ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Predictive Factors ◽  
Speech Intelligibility ◽  
Age At Onset ◽  
Patient Expectations ◽  
Speech Discrimination ◽  
Profound Deafness ◽  
The Mean

The objectives of this study were to assess: (i) patient expectations met as a measure of outcome in early-deafened, late-implanted (non-traditional) cochlear implant recipients and (ii) pre-implantation predictive factors for postoperative speech perception. The notes of 13 recipients were retrospectively reviewed. The mean age at onset of profound deafness was 1.5 years (range 0-6). The mean age at implantation was 37 years (range 22-51 years). Patient expectations were assessed pre-operatively and 1 year after implantation. They were met or exceeded in 129/140 (92%) domains overall. A higher Speech Intelligibility Rating and audiovisual City University of New York sentence score before implantation were found to be positive predictive factors for improved speech discrimination after cochlear implantation.

scholarly journals The relationship between speech intelligibility and speech perception in cochlear implant patients

2018 ◽  
Author(s):  
N Freimann ◽  
D Polterauer ◽  
S Gollwitzer ◽  
J Müller ◽  
ME Schuster
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Speech Intelligibility ◽  
The Relationship

scholarly journals Discrimination of Stochastic Frequency Modulation by Cochlear Implant Users

2015 ◽  
Vol 26 (06) ◽  
pp. 572-581 ◽  
Author(s):  
Stanley Sheft ◽  
Min-Yu Cheng ◽  
Valeriy Shafiro
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Stimulus Duration ◽  
Frequency Modulation ◽  
Speech Intelligibility ◽  
Signal To Noise Ratio ◽  
Normal Hearing ◽  
Signal To Noise ◽  
Common Basis ◽  
Low Rate

Background: Past work has shown that low-rate frequency modulation (FM) may help preserve signal coherence, aid segmentation at word and syllable boundaries, and benefit speech intelligibility in the presence of a masker. Purpose: This study evaluated whether difficulties in speech perception by cochlear implant (CI) users relate to a deficit in the ability to discriminate among stochastic low-rate patterns of FM. Research Design: This is a correlational study assessing the association between the ability to discriminate stochastic patterns of low-rate FM and the intelligibility of speech in noise. Study Sample: Thirteen postlingually deafened adult CI users participated in this study. Data Collection and Analysis: Using modulators derived from 5-Hz lowpass noise applied to a 1-kHz carrier, thresholds were measured in terms of frequency excursion both in quiet and with a speech-babble masker present, stimulus duration, and signal-to-noise ratio in the presence of a speech-babble masker. Speech perception ability was assessed in the presence of the same speech-babble masker. Relationships were evaluated with Pearson product–moment correlation analysis with correction for family-wise error, and commonality analysis to determine the unique and common contributions across psychoacoustic variables to the association with speech ability. Results: Significant correlations were obtained between masked speech intelligibility and three metrics of FM discrimination involving either signal-to-noise ratio or stimulus duration, with shared variance among the three measures accounting for much of the effect. Compared to past results from young normal-hearing adults and older adults with either normal hearing or a mild-to-moderate hearing loss, mean FM discrimination thresholds obtained from CI users were higher in all conditions. Conclusions: The ability to process the pattern of frequency excursions of stochastic FM may, in part, have a common basis with speech perception in noise. Discrimination of differences in the temporally distributed place coding of the stimulus could serve as this common basis for CI users.

scholarly journals The effect of a coding strategy that removes temporally masked pulses on speech perception by cochlear implant users

2020 ◽  
Author(s):  
Wiebke Lamping ◽  
Tobias Goehring ◽  
Jeremy Marozeau ◽  
Robert P. Carlyon
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Speech Intelligibility ◽  
Average Power ◽  
Decision Criterion ◽  
Speech In Noise ◽  
Current Pulses ◽  
Temporal Integrator ◽  
Significant Difference ◽  
Temporal Masking

Speech recognition in noisy environments remains a challenge for cochlear implant (CI) recipients. Unwanted charge interactions between current pulses in the same and across different electrode channels are likely to impair performance. Here we investigate the effect of reducing the number of current pulses on speech perception. This was achieved by implementing a psychoacoustic temporal-masking model where current pulses in each channel were passed through a temporal integrator to identify and remove pulses that were less likely to be perceived by the recipient. The decision criterion of the temporal integrator was varied to control the percentage of pulses removed in each condition. In experiment 1, speech in quiet was processed with a standard Continuous Interleaved Sampling (CIS) strategy and with 25, 50 and 75% of pulses removed. In experiment 2, performance was measured for speech in noise with the CIS reference and with 50 and 75% of pulses removed. Speech intelligibility in quiet revealed no significant difference between reference and test conditions. For speech in noise, results showed a significant improvement of 2.4 dB when removing 50% of pulses. Performance both in quiet and in noise was not significantly different between the reference and when 75% of pulses were removed. Further, by reducing the overall amount of current pulses by 25, 50, and 75% but accounting for the increase in charge necessary to compensate for the decrease in loudness, estimated average power savings of 21.15, 40.95, and 63.45%, respectively, could be possible for this set of listeners. In conclusion, removing temporally masked pulses may improve speech perception in noise and result in substantial power savings.

scholarly journals Comparing the Speech Perception of Cochlear Implant Users with Three Different Finnish Speech Intelligibility Tests in Noise

2021 ◽  
Vol 10 (16) ◽  
pp. 3666
Author(s):  
Tytti Willberg ◽  
Ville Sivonen ◽  
Pia Linder ◽  
Aarno Dietz
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Speech Intelligibility ◽  
Test Procedure ◽  
Test Material ◽  
User Group ◽  
Speech In Noise ◽  
Adaptive Test ◽  
The Matrix ◽  
Device Use

Background: A large number of different speech-in-noise (SIN) tests are available for testing cochlear implant (CI) recipients, but few studies have compared the different tests in the same patient population to assess how well their results correlate. Methods: A clinically representative group of 80 CI users conducted the Finnish versions of the matrix sentence test, the simplified matrix sentence test, and the digit triplet test. The results were analyzed for correlations between the different tests and for differences among the participants, including age and device modality. Results: Strong and statistically significant correlations were observed between all of the tests. No floor or ceiling effects were observed with any of the tests when using the adaptive test procedure. Age or the length of device use showed no correlation to SIN perception, but bilateral CI users showed slightly better results in comparison to unilateral or bimodal users. Conclusions: Three SIN tests that differ in length and complexity of the test material provided comparable results in a diverse CI user group.

scholarly journals Preimplant Hearing Aid Fittings and Aided Audibility for Pediatric Cochlear Implant Recipients

2019 ◽  
Vol 30 (08) ◽  
pp. 703-711 ◽  
Author(s):  
Alissa Nickerson ◽  
Lisa S. Davidson ◽  
Rosalie M. Uchanski
Keyword(s):  
Speech Recognition ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Hearing Aids ◽  
Speech Intelligibility ◽  
Recognition Performance ◽  
Demographic Data ◽  
The United States ◽  
Mean Deviation ◽  
The Relationship

AbstractAudibility of speech for children with hearing loss (HL) depends on the degree of HL and the fitting of the hearing aids (HAs) themselves. Many studies on cochlear implant (CI) users have demonstrated that preimplant hearing is associated with postimplant outcomes, but there have been very few reports on the fitting of HAs before surgery.The aims of this study were to characterize HA fittings and aided audibility of speech for pediatric HA users with severe to profound HL and to examine the relation between preimplant aided audibility and postimplant speech perception.A descriptive/observational and correlational study. Audiologic records of pediatric CI participants involved in a larger study examining the effects of early acoustic hearing were analyzed retrospectively; when available, these records included HA verification and speech recognition performance.The CI participants were enrolled in audiology centers and oral schools for the deaf across the United States.To determine whether deviations from prescribed DSL target were significantly greater than zero, 95% confidence intervals of the mean deviation were calculated for each frequency (250, 500, 1000, 2000, and 4000 Hz). Correlational analyses were used to examine the relationship between preimplant aided Speech Intelligibility Indices (SIIs) and postimplant speech perception in noise. Correlational analyses were also used to explore the relationship between preimplant aided SIIs and demographic data. T-tests were used to compare preimplant-aided SIIs of HAs of listeners who later became users of either sequential CIs, simultaneous CIs, or bimodal devices.Preimplant fittings of HAs were generally very close to prescriptive targets, except at 4000 Hz for those HAs with active frequency-lowering processing, and preimplant SIIs, albeit low, were correlated with postimplant speech recognition performance in noise. These results suggest that aided audibility should be maximized throughout the HA trial for later speech recognition purposes.It is recommended that HA fittings be optimized to support speech audibility even when considering implantation. In addition to the age at which HA use begins, the aided audibility itself is important in determining CI candidacy and decisions regarding bimodal HA use.

Use of Speech by Children From Total Communication Programs Who Wear Cochlear Implants

2002 ◽  
Vol 11 (1) ◽  
pp. 50-58 ◽  
Author(s):  
Ann Geers ◽  
Brent Spehar ◽  
Allison Sedey
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Speech Intelligibility ◽  
English Language ◽  
Language Competence ◽  
Communication Program ◽  
Wide Range ◽  
Total Communication ◽  
Intelligibility Ratings ◽  
English Syntax

This study examined whether children who are deaf acquire usable speech or continue to rely primarily on manual communication when they are enrolled in a total communication setting following receipt of a cochlear implant. Furthermore, it considered whether the use of speech post-implant is associated with other outcomes such as better speech perception skills, English language competence, speech intelligibility, and educational mainstreaming. Language samples were elicited from twenty- seven 8- and 9-year-olds who had received a Nucleus 22-channel cochlear implant before age 5 and were enrolled in a total communication program for at least the first 3 years following implantation. Samples were transcribed by mode of production (i.e., speech or sign) and scored for lexical diversity, syntax, utterance length, and use of bound morphemes. Results revealed a wide range of mode preference, with some children using primarily speech, some primarily sign, and some using both modes to varying extents. Not only did speech users achieve higher auditory speech perception scores and speech intelligibility ratings, but they also demonstrated better comprehension and use of English syntax than did children who used little or no speech. After 3 years with an implant, speech users were more likely than children who used little or no speech to be placed in mainstream educational programs.

scholarly journals Application of Wireless Contralateral Routing of Signal Technology in Unilateral Cochlear Implant Users with Bilateral Profound Hearing Loss

2019 ◽  
Vol 30 (07) ◽  
pp. 579-589 ◽  
Author(s):  
Hillary A. Snapp ◽  
Michael E. Hoffer ◽  
Anthony Spahr ◽  
Suhrud Rajguru
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Repeated Measures ◽  
Statistical Significance ◽  
Profound Hearing Loss ◽  
Speech In Noise ◽  
Bonferroni Adjustment ◽  
Significant Difference ◽  
Hearing Outcomes

AbstractThe aim of the study was to determine if contralateral routing of signal (CROS) technology results in improved hearing outcomes in unilateral cochlear implant (CI) patients and provides similar gains in speech perception in noise to traditional monaural listeners (MLs).The study is a prospective, within-subject repeated-measures experiment.Adult, English-speaking patients with bilateral severe–profound sensorineural hearing loss using an Advanced Bionics CI (n = 12) in one ear were enrolled for the study.Hearing performance in the monaural listening condition (CI only) was compared with the CROS-aided (unilateral CI + CROS) condition. Participants were tested for speech-in-noise performance using the Bamford-Kowal-Bench Speech-in-Noise™ test materials in the speech front/noise front (0 degrees/0 degrees azimuth), speech front/noise back (0 degrees/180 degrees azimuth), speech deaf ear/noise monaural ear (90 degrees/270 degrees azimuth), and speech monaural ear/noise deaf ear (90 degrees/270 degrees azimuth) configurations. Localization error was assessed using three custom stimuli consisting of 1/3 octave narrowband noises centered at 500 and 4000 Hz and a broadband speech stimulus. Localization stimuli were presented at random in the front hemifield by 19 speakers spatially separated by 10 degrees. Outcomes were compared with a previously described group of traditional MLs in the CROS-aided condition (normal hearing ear + CROS).All participants were tested acutely with no adaptation to the CROS device. Statistical analyses were performed using Wilcoxon signed rank tests for nonparametric data and paired sample. Statistical significance was set to p < 0.00625 after Bonferroni adjustment for eight tests.Significant benefit was observed from unaided to the CI + CROS–aided condition for listening in noise across most listening conditions with the greatest benefit observed in the speech deaf ear/noise monaural ear (90 degrees/270 degrees azimuth) condition (p < 0.0005). When compared with traditional MLs, no significant difference in decibel gain from the unaided to CROS-aided conditions was observed between participant groups. There was no improvement in localization ability in the CROS-aided condition for either participant group and no significant difference in performance between traditional MLs and unilateral CI listeners.These findings support that unilateral CI users are capable of achieving similar gains in speech perception to that of traditional MLs with wireless CROS. These results indicate that the use of wireless CROS stimulation in unilateral CI recipients provides increased benefit and an additional rehabilitative option for this population when bilateral implantation is not possible. The results suggest that noninvasive CROS solutions can successfully rehabilitate certain monaural listening deficits, provide improved hearing outcomes, and expand the reach of treatment in this population.

scholarly journals Music perception and speech intelligibility in noise performance by Italian-speaking cochlear implant users

2021 ◽  
Author(s):  
Hilal Dincer D’Alessandro ◽  
Patrick J. Boyle ◽  
Ginevra Portanova ◽  
Patrizia Mancini
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Speech Intelligibility ◽  
Music Perception ◽  
Classical Music ◽  
Adaptive Tests ◽  
Soul Music ◽  
Language Studies ◽  
Listening Environments ◽  
Everyday Performance

Abstract Objective The goal of this study was to investigate the performance correlations between music perception and speech intelligibility in noise by Italian-speaking cochlear implant (CI) users. Materials and methods Twenty postlingually deafened adults with unilateral CIs (mean age 65 years, range 46–92 years) were tested with a music quality questionnaire using three passages of music from Classical Music, Jazz, and Soul. Speech recognition in noise was assessed using two newly developed adaptive tests in Italian: The Sentence Test with Adaptive Randomized Roving levels (STARR) and Matrix tests. Results Median quality ratings for Classical, Jazz and Soul music were 63%, 58% and 58%, respectively. Median SRTs for the STARR and Matrix tests were 14.3 dB and 7.6 dB, respectively. STARR performance was significantly correlated with Classical music ratings (rs = − 0.49, p = 0.029), whereas Matrix performance was significantly correlated with both Classical (rs = − 0.48, p = 0.031) and Jazz music ratings (rs = − 0.56, p = 0.011). Conclusion Speech with competitive noise and music are naturally present in everyday listening environments. Recent speech perception tests based on an adaptive paradigm and sentence materials in relation with music quality measures might be representative of everyday performance in CI users. The present data contribute to cross-language studies and suggest that improving music perception in CI users may yield everyday benefit in speech perception in noise and may hence enhance the quality of listening for CI users.

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