An objective auditory measure to assess speech recognition in adult cochlear implant users

Turgeon, Christine; Lazzouni, Latifa; Leporé, Franco; Ellemberg, Dave

doi:10.1016/j.clinph.2013.09.035

Cited by 38 publications

(21 citation statements)

References 23 publications

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“…The source of this heterogeneity lies in the number of different factors that may influence the post-operative performance. These include onset, duration and severity of the hearing loss, differences in the survival of the peripheral neural elements, residual acoustic hearing and device-related effects such as the position of the electrodes relative to neurons, design and form of the electrodes and sound processing strategy (Kral et al, 2016;van Dijk et al, 1999;Gantz et al, 1998;Wilson et al, 1993). Furthermore, factors such as central brain processing, cross-modal reorganization (recent review e.g.…”

Section: Additional Factors Having An Influence On the CI Outcomementioning

confidence: 99%

The MMN as a viable and objective marker of auditory development in CI users

et al. 2017

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In the present article, we review the studies on the use of the mismatch negativity (MMN) as a tool for an objective assessment of cochlear-implant (CI) functioning after its implantation and as a function of time of CI use. The MMN indexes discrimination of different sound stimuli with a precision matching with that of behavioral discrimination and can therefore be used as its objective index. Importantly, these measurements can be reliably carried out even in the absence of attention and behavioral responses and therefore they can be extended to populations that are not capable of behaviorally reporting their perception such as infants and different clinical patient groups. In infants and small children with CI, the MMN provides the only means for assessing the adequacy of the CI functioning, its improvement as a function of time of CI use, and the efficiency of different rehabilitation procedures. Therefore, the MMN can also be used as a tool in developing and testing different novel rehabilitation procedures. Importantly, the recently developed multi-feature MMN paradigms permit the objective assessment of discrimination accuracy for all the different auditory dimensions (such as frequency, intensity, and duration) in a short recording time of about 30 min. Most recently, such stimulus paradigms have been successfully developed for an objective assessment of music perception, too.

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Section: Additional Factors Having An Influence On the CI Outcomementioning

confidence: 99%

The MMN as a viable and objective marker of auditory development in CI users

et al. 2017

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“…The N400, reflecting semantic memory use during language comprehension (Kutas and Federmeier, 2000), has been shown to be prolonged in adult CI users when compared with NH listeners (Hahne et al, 2012;Henkin et al, 2014), suggesting a delayed and a more effortful speech processing with the limited CI input (Finke et al, 2016a). However, it is currently unknown whether the N400 can distinguish between CI users who have good versus poor speech recognition, although such a distinctiveness has been previously shown for other auditory ERPs (Soshi et al, 2014;Turgeon et al, 2014).…”

Section: Introductionmentioning

confidence: 96%

Combined Brain-Perfusion SPECT and EEG Measurements Suggest Distinct Strategies for Speech Comprehension in CI Users With Higher and Lower Performance

et al. 2020

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Cochlear implantation constitutes a successful therapy of inner ear deafness, with the majority of patients showing good outcomes. There is, however, still some unexplained variability in outcomes with a number of cochlear-implant (CI) users, showing major limitations in speech comprehension. The current study used a multimodal diagnostic approach combining single-photon emission computed tomography (SPECT) and electroencephalography (EEG) to examine the mechanisms underlying speech processing in postlingually deafened CI users (N = 21). In one session, the participants performed a speech discrimination task, during which a 96channel EEG was recorded and the perfusions marker 99m Tc-HMPAO was injected intravenously. The SPECT scan was acquired 1.5 h after injection to measure the cortical activity during the speech task. The second session included a SPECT scan after injection without stimulation at rest. Analysis of EEG and SPECT data showed N400 and P600 event-related potentials (ERPs) particularly evoked by semantic violations in the sentences, and enhanced perfusion in a temporo-frontal network during task compared to rest, involving the auditory cortex bilaterally and Broca's area. Moreover, higher performance in testing for word recognition and verbal intelligence strongly correlated to the activation in this network during the speech task. However, comparing CI users with lower and higher speech intelligibility [median split with cutoff + 7.6 dB signalto-noise ratio (SNR) in the Göttinger sentence test] revealed for CI users with higher performance additional activations of parietal and occipital regions and for those with lower performance stronger activation of superior frontal areas. Furthermore, SPECT activity was tightly coupled with EEG and cognitive abilities, as indicated by correlations between (1) cortical activation and the amplitudes in EEG, N400 (temporal and occipital

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“…Studies in adults show that MMN is similar in good‐performing CI users and NH listeners, but it is absent or abnormal in poor‐performing CI users (Groenen, Snik & van den Broek, ; Kraus, Micco, Koch et al ., ; Ponton et al ., ; Roman, Canévet, Marquis, Triglia & Liégeois‐Chauvel, ; Zhang, Hammer, Banks, Benson, Xiang & Fu, ). MMN amplitudes also correlate with speech perception in adults and children with CIs (Gordon, Tanaka & Papsin, ; Kileny, Boerst & Zwolan, ; Lonka, Kujala, Lehtokoski et al ., ; Lonka, Relander‐Syrjänen, Johansson, Näätänen, Alho & Kujala, ; Singh, Liasis, Rajput, Towell & Luxon, ; Turgeon, Lazzouni, Lepore & Ellemberg, ), suggesting that CI users can encode acoustic differences. Studying musical perception in adult CI users with a multi‐feature paradigm, Sandmann et al .…”

Section: Introductionmentioning

confidence: 99%

Using a multi‐feature paradigm to measure mismatch responses to minimal sound contrasts in children with cochlear implants and hearing aids

Uhlén

Engström

Kallioinen

et al. 2017

Scandinavian J Psychology

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Our aim was to explore whether a multi-feature paradigm (Optimum-1) for eliciting mismatch negativity (MMN) would objectively capture difficulties in perceiving small sound contrasts in children with hearing impairment (HI) listening through their hearing aids (HAs) and/or cochlear implants (CIs). Children aged 5-7 years with HAs, CIs and children with normal hearing (NH) were tested in a free-field setting using a multi-feature paradigm with deviations in pitch, intensity, gap, duration, and location. There were significant mismatch responses across all subjects that were positive (p-MMR) for the gap and pitch deviants (F(1,43) = 5.17, p = 0.028 and F(1,43) = 6.56, p = 0.014, respectively) and negative (MMN) for the duration deviant (F(1,43) = 4.74, p = 0.035). Only the intensity deviant showed a significant group interaction with MMN in the HA group and p-MMR in the CI group (F(2,43) = 3.40, p = 0.043). The p-MMR correlated negatively with age, with the strongest correlation in the NH subjects. In the CI group, the late discriminative negativity (LDN) was replaced by a late positivity with a significant group interaction for the location deviant. Children with severe HI can be assessed through their hearing device with a fast multi-feature paradigm. For further studies a multi-feature paradigm including more complex speech sounds may better capture variation in auditory processing in these children.

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An objective auditory measure to assess speech recognition in adult cochlear implant users

Cited by 38 publications

References 23 publications

The MMN as a viable and objective marker of auditory development in CI users

The MMN as a viable and objective marker of auditory development in CI users

Combined Brain-Perfusion SPECT and EEG Measurements Suggest Distinct Strategies for Speech Comprehension in CI Users With Higher and Lower Performance

Using a multi‐feature paradigm to measure mismatch responses to minimal sound contrasts in children with cochlear implants and hearing aids

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