scholarly journals Time of Cochlear Implant Use Obtained From Data Logging and Word Discrimination Performance of Children

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Mustafa Yuksel
Keyword(s):  
Cochlear Implant ◽  
Discrimination Performance ◽  
Data Logging ◽  
Word Discrimination

Effect of Increased Daily Cochlear Implant Use on Auditory Perception in Adults

2021 ◽  
pp. 1-12
Author(s):  
Jourdan T. Holder ◽  
René H. Gifford
Keyword(s):  
Speech Recognition ◽  
Cochlear Implant ◽  
Auditory Perception ◽  
Underlying Mechanism ◽  
Causal Link ◽  
Data Logging ◽  
Spectral Processing ◽  
Wear Time ◽  
Percentage Points ◽  
Questionnaire Administration

Purpose Despite the recommendation for cochlear implant (CI) processor use during all waking hours, variability in average daily wear time remains high. Previous work has shown that objective wear time is significantly correlated with speech recognition outcomes. We aimed to investigate the causal link between daily wear time and speech recognition outcomes and assess one potential underlying mechanism, spectral processing, driving the causal link. We hypothesized that increased CI use would result in improved speech recognition via improved spectral processing. Method Twenty adult CI recipients completed two study visits. The baseline visit included auditory perception testing (speech recognition and spectral processing measures), questionnaire administration, and documentation of data logging from the CI software. Participants watched an educational video, and they were informed of the compensation schedule. Participants were then asked to increase their daily CI use over a 4-week period during everyday life. Baseline measures were reassessed following the 4-week period. Results Seventeen out of 20 participants increased their daily CI use. On average, participants’ speech recognition improved by 3.0, 2.4, and 7.0 percentage points per hour of increased average daily CI use for consonant–nucleus–consonant words, AzBio sentences, and AzBio sentences in noise, respectively. Questionnaire scores were similar between visits. Spectral processing showed significant improvement and accounted for a small amount of variance in the change in speech recognition values. Conclusions Improved consistency of processor use over a 4-week period yielded significant improvements in speech recognition scores. Though a significant factor, spectral processing is likely not the only mechanism driving improvement in speech recognition; further research is warranted.

Psychoacoustic and Demographic Factors for Speech Recognition of Older Adult Cochlear Implant Users

2020 ◽  
Vol 63 (6) ◽  
pp. 1712-1725
Author(s):  
Xin Luo ◽  
Courtney Kolberg ◽  
Kathryn R. Pulling ◽  
Tamiko Azuma
Keyword(s):  
Speech Recognition ◽  
Cochlear Implant ◽  
Discrimination Performance ◽  
Demographic Factors ◽  
Small Sample ◽  
Gap Detection ◽  
Sentence Recognition ◽  
Speech Reception Thresholds ◽  
Effects Of Aging ◽  
Better Than

Purpose This study aimed to evaluate the effects of aging and cochlear implant (CI) on psychoacoustic and speech recognition abilities and to assess the relative contributions of psychoacoustic and demographic factors to speech recognition of older CI (OCI) users. Method Twelve OCI users, 12 older acoustic-hearing (OAH) listeners age-matched to OCI users, and 12 younger normal-hearing (YNH) listeners underwent tests of temporal amplitude modulation detection, temporal gap detection in noise, and spectral–temporal modulated ripple discrimination. Speech reception thresholds were measured for sentence recognition in multitalker, speech-babble noise. Results Statistical analyses showed that, for the small sample of OAH listeners, the degree of hearing loss did not significantly affect any outcome measure. Temporal resolution, spectral resolution, and speech recognition all significantly degraded with both age and the use of a CI (i.e., YNH better than OAH and OAH better than OCI performance). Although both were significantly correlated with OCI users' speech recognition, the duration of CI use no longer had a significant effect on speech recognition once the effect of spectral–temporal ripple discrimination performance was taken into account. For OAH listeners, the only significant predictor of speech recognition was temporal gap detection performance. Conclusion The preliminary results suggest that speech recognition of OCI users may improve with longer duration of CI use, mainly due to higher perceptual acuity to spectral–temporal modulated ripples in acoustic stimuli.

scholarly journals Fitting prelingually deafened adult cochlear implant users based on electrode discrimination performance

2016 ◽  
Vol 56 (3) ◽  
pp. 174-185 ◽  
Author(s):  
Joke A. Debruyne ◽  
Tom Francart ◽  
A. Miranda L. Janssen ◽  
Kim Douma ◽  
Jan P.L. Brokx
Keyword(s):  
Cochlear Implant ◽  
Discrimination Performance

Can the Acoustic Change Complex Be Recorded in an Individual with a Cochlear Implant? Separating Neural Responses from Cochlear Implant Artifact

2007 ◽  
Vol 18 (02) ◽  
pp. 126-140 ◽  
Author(s):  
Brett A. Martin
Keyword(s):  
Cochlear Implant ◽  
Auditory Evoked Potentials ◽  
Discrimination Performance ◽  
Auditory Neuropathy ◽  
Neural Responses ◽  
The Subject ◽  
Acoustic Change Complex ◽  
Cortical Auditory Evoked Potentials ◽  
Good Agreement

The purpose of this case study was to determine whether the P1-N1-P2 acoustic change complex (ACC) could be recorded in an individual with a cochlear implant. In a cochlear implant recipient, stimulus-related artifact from the implant can overlap the evoked potential of interest, making it difficult to determine whether the recorded response is neural or a simple reflection of the artifact. This is an even greater technical challenge for the ACC because stimuli having relatively long durations are used. The subject was a 24-year-old with a diagnosis of auditory neuropathy/auditory dys-synchrony and used a MED-EL Tempo+ cochlear implant in her left ear. The ACC was recorded to synthetic vowels containing a change of F2 at midpoint ranging from 0 (no change) to 1200 Hz (perceived as /ui/). The stimuli were presented randomly at 75 dB SPL via a loudspeaker. In one condition the subject ignored the stimuli and watched a captioned video. In the other, the subject pressed one button on a response pad if she perceived an acoustic change at stimulus midpoint and another if she did not. Cortical auditory evoked potentials were recorded from 32 scalp electrodes. Results indicated that the ACC was present and could be teased apart from the cochlear implant stimulus artifact. ACC thresholds showed good agreement with behavioral discrimination performance, and therefore, results are positive for the potential clinical application of the ACC technique to individuals with cochlear implants. El propósito de este estudio de caso fue determinar si el complejo de cambio acústico (ACC) P1-N2-P2 podía ser registrado en un individuo con un implante coclear. En un receptor de un implante coclear, los artefactos del implante relacionados con el estímulo se traslapan el potencial evocado de interés, haciendo difícil la determinación de si la respuesta registrada es neural o un simple reflejo del artefacto. Esto es un reto técnico aún más grande para los ACC porque se usan estímulos de relativa larga duración. El sujeto tenía 24 años con un diagnóstico de neuropatía/dis-sincronía auditiva, y utilizaba un implante coclear MED-EL Tempo+ en el oído izquierdo. El ACC se registró ante vocales sintéticas que contenían un cambio en el F2 a la mitad del rango entre 0 (sin cambio) a 1200 Hz (percibido como /ui/). El estímulo fue presentado al azar a 75 dB SPL por medio de parlantes. En una condición, el sujeto ignoró el estímulo y miró un video subtitulado. En la otra, el sujeto presionó un botón de respuesta si percibía un cambio acústico en el punto medio del estímulo y otro si no lo percibía. Se registraron los potenciales evocados auditivos corticales con 32 electrodos craneanos. Los resultados indicaron que el ACC estaba presente y podía ser separado de los artefactos del estímulo en el implante coclear. Los umbrales del ACC coincidieron con el desempeño en la discriminación conductual, y por lo tanto, los resultados son positivos para la aplicación clínica potencial de la técnica de ACC a individuos con implante coclear.

A Multicenter Clinical Evaluation of Data Logging in Cochlear Implant Recipients Using Automated Scene Classification Technologies

2017 ◽  
Vol 22 (4-5) ◽  
pp. 226-235 ◽  
Author(s):  
Eliana Cristofari ◽  
Domenico Cuda ◽  
Alessandro Martini ◽  
Francesca Forli ◽  
Diego Zanetti ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Age Groups ◽  
Scene Classification ◽  
Data Logging ◽  
Daily Lives ◽  
Report Data ◽  
Acoustic Environments ◽  
Device Use ◽  
Evaluation Of Data ◽  
Sound Processor

Currently, there are no studies assessing everyday use of cochlear implant (CI) processors by recipients by means of objective tools. The Nucleus 6 sound processor features a data logging system capable of real-time recording of CI use in different acoustic environments and under various categories of loudness levels. In this study, we report data logged for the different scenes and different loudness levels of 1,366 CI patients, as recorded by SCAN. Monitoring device use in cochlear implant recipients of all ages provides important information about the listening conditions encountered in recipients' daily lives that may support counseling and assist in the further management of their device settings. The findings for this large cohort of active CI users confirm differences between age groups concerning device use and exposure to various noise environments, especially between the youngest and oldest age groups, while similar levels of loudness were observed.

A Statistical Model for Appraisal of Discrimination Performance in Closed Set Tests

1988 ◽  
Vol 27 (03) ◽  
pp. 133-134
Author(s):  
L. Köppen ◽  
R. Quester
Keyword(s):  
Cochlear Implant ◽  
Statistical Model ◽  
Poisson Distribution ◽  
Discrimination Performance ◽  
Performance Tests ◽  
Confidence Limits ◽  
Matching Model ◽  
Closed Set ◽  
The World

SummaryIn the evaluation of discrimination performance in closed set tests, it is important to know what proportion of correct results may possibly be explained by chance. The present paper describes a statistical model for the calculation of confidence limits which appears suitable for standardization of the different methods of appraisal used throughout the world. It utilizes the matching model and Poisson distribution and, as an example, it is applied to discrimination performance tests of cochlear implant wearers.

Data Logging Evidence of Cochlear Implant Use in Single-Sided and Bilateral Deafness

2019 ◽  
Vol 24 (4) ◽  
pp. 206-216 ◽  
Author(s):  
Ann-Kathrin Rauch ◽  
Stephanie Kagermann ◽  
Thomas Wesarg ◽  
Till Fabian Jakob ◽  
Antje Aschendorff ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Age Groups ◽  
Usage Pattern ◽  
Data Logging ◽  
Similar Time ◽  
Speech In Noise ◽  
Auditory Scene ◽  
Listening Environments ◽  
Single Sided Deafness ◽  
Bilateral Deafness

Purpose: This study analyses data logs in order to investigate the usage pattern of cochlear implant (CI) recipients with single-sided deafness (SSD-CI) and bilaterally deaf, uni- or bilaterally implanted CI recipients (Uni-CI and Bil-CI). Data logging is available from SCAN, an automated auditory scene classifier which categorizes auditory input into 6 listening environments. Methods: CI usage data were retrospectively available from data logs of 206 CI recipients using the Nucleus 6 system obtained between January 2013 and June 2015. For all recipients, we analysed time on air and time spent in the listening environments. For statistical analysis, we matched the CI recipients according to age and duration of CI experience and classified them into 4 age groups. Results: SSD-CI showed a similar time on air compared to Uni- and Bil-CI. Usage behaviour of SSD-CI was comparable to Uni- and Bil-CI regarding exposure to music, speech in quiet and speech in noise. With increasing age, exposure to quiet increased and exposure to music decreased across all CI recipient groups in relation to time on air. Conclusion: In total, the CI usage pattern of SSD-CI is comparable for the majority of listening environments and age groups to that of Uni- and Bil-CI. The results of our study show that SSD-CI benefit equally from CI implantation.

Longitudinal Infant Speech Perception in Young Cochlear Implant Users

2011 ◽  
Vol 22 (03) ◽  
pp. 129-142 ◽  
Author(s):  
Kristin Uhler ◽  
Christie Yoshinaga-Itano ◽  
Sandra Abbott Gabbard ◽  
Ann M. Rothpletz ◽  
Herman Jenkins
Keyword(s):  
Cochlear Implant ◽  
Case Studies ◽  
Discrimination Performance ◽  
University Of Colorado ◽  
Data Collection And Analysis ◽  
Phoneme Discrimination ◽  
Infant Speech Perception ◽  
Device Use ◽  
Contrast Discrimination ◽  
The University

Purpose: This paper presents longitudinal case studies of children who received (cochlear implants) CIs and a controlled sample of children with normal hearing (NH). Phoneme discrimination (i.e., /sa-ma/, /a-i/, /a-u/, /u-i/, /ta-da/, /pa-ka/) was assessed prior to receiving CIs and monthly for 3 mo following CI activation. Research Design: Case studies. Study Sample: Three cochlear implant recipients and seven NH control participants were recruited through the University of Colorado Hospital and the University of Colorado, Boulder. Data Collection and Analysis: The study utilized the visual reinforcement audiometry and interactive play assessment of speech pattern contrasts (VRASPAC) algorithm. A comparison of scoring was conducted using Cohen's kappa to determine interrater reliability. Results: Findings from this study revealed that CI recipients could discriminate at least three out of five phoneme contrasts at mastery level (≥90%) by 2 mo of device use. None of the CI recipients reached mastery prior to implantation. Following 3 mo of CI use there was no difference in contrast discrimination performance between the CI users and their NH age-matched peers (with the exception of /pa-ka/ for one CI user). Conclusions: The CI users in this case study, who were implanted between 12 and 16 mo of age, were able to master the phoneme contrasts regardless of bilateral or unilateral CI, socioeconomic status, or language spoken at home.

Sign in / Sign up

Export Citation Format

Share Document