Speech Recognition Performance in Children with Cochlear Implants Using Bimodal Stimulation

Kumar, Suman; Mohanty, Panchanan; Prakash, S. G. R.

doi:10.1007/s12070-010-0050-4

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…The present results showed a small but significant bimodal benefit for tone recognition (largely due to improved recognition of tone 2), consistent with previous findings ([ 35 , 36 ]). However, there was no significant bimodal benefit for vowel, consonant, or sentence recognition in quiet, consistent with some previous studies [ 18 , 35 ]. Li et al [ 35 ] found a significant bimodal benefit for vowel recognition in quiet in adult Mandarin-speaking CI users, but not for tone or vowel recognition in quiet.…”

Section: Discussionsupporting

confidence: 92%

“…Li et al [ 35 ] found a significant bimodal benefit for vowel recognition in quiet in adult Mandarin-speaking CI users, but not for tone or vowel recognition in quiet. Rathna-Kumar et al [ 18 ] found a bimodal benefit for speech understanding in noise in India-speaking pediatric CI users, but not for speech understanding in quiet. Note that the variability in performance was reduced with the CI + HA, relative to CI-only.…”

Section: Discussionmentioning

confidence: 99%

“…With the CI + HA, mean tone, vowel, consonant, and sentence recognition performance improved by 3.8, 2.4, 6.4, and 3.1 percentage points, respectively. Most previous studies have shown bimodal benefits for speech understanding in noise (e.g., [ 3 , 5 , 6 , 8 , 9 , 13 , 18 , 25 , 26 ]). Although HA-only performance was not measured in the present study, there was likely a strong performance asymmetry between the HA and CI ears in the present subjects.…”

Section: Discussionmentioning

confidence: 99%

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The Benefits of Residual Hair Cell Function for Speech and Music Perception in Pediatric Bimodal Cochlear Implant Listeners

et al. 2018

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Objective The aim of this study was to investigate the benefits of residual hair cell function for speech and music perception in bimodal pediatric Mandarin-speaking cochlear implant (CI) listeners. Design Speech and music performance was measured in 35 Mandarin-speaking pediatric CI users for unilateral (CI-only) and bimodal listening. Mandarin speech perception was measured for vowels, consonants, lexical tones, and sentences in quiet. Music perception was measured for melodic contour identification (MCI). Results Combined electric and acoustic hearing significantly improved MCI and Mandarin tone recognition performance, relative to CI-only performance. For MCI, performance was significantly better with bimodal listening for all semitone spacing conditions (p < 0.05 in all cases). For tone recognition, bimodal performance was significantly better only for tone 2 (rising; p < 0.05). There were no significant differences between CI-only and CI + HA for vowel, consonant, or sentence recognition. Conclusions The results suggest that combined electric and acoustic hearing can significantly improve perception of music and Mandarin tones in pediatric Mandarin-speaking CI patients. Music and lexical tone perception depends strongly on pitch perception, and the contralateral acoustic hearing coming from residual hair cell function provided pitch cues that are generally not well preserved in electric hearing.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The Benefits of Residual Hair Cell Function for Speech and Music Perception in Pediatric Bimodal Cochlear Implant Listeners

et al. 2018

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“…Modern digital signal processing technology in HAs includes nonlinear, compression, multichannel, adaptive, noise reduction, feedback manager, directional microphones, multiple memories, etc. (5) . HAs with multiple compression channels are the predominant type of emerging technology in today's HA market.…”

Section: Introductionmentioning

confidence: 99%

Speech perception performance of Telugu speaking elderly population and number of compression channels in digital hearing aid technology

Kumar¹,

Sushma²,

Mohanty³

et al. 2020

IJST

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Background:We assessed the speech perception performance of the elderly population with hearing impairment in quiet and noisy listening environments as a function of the number of compression channels in digital hearing aids. Materials and Methods: Participants were 14 elderly individuals with hearing impairment in the age range of 65 to 70 years (M=67.35; SD=±1.63). Speech recognition score (SRS) testing as a measure of speech perception was performed on each participant in quiet and +5 dB SNR listening environments with hearing aids in 2, 4, 6, 8, 10, and 12 channel settings respectively. Results: Results revealed significant difference in SRS between 2 vs 4, 2 vs 6, 2 vs 8, 2 vs 10, 2 vs 12, 4 vs 12 channel settings, and no significant difference between 4 vs 6, 4 vs 8, 4 vs 10, 4 vs 12, 6 vs 8, 6 vs 10, 6 vs 12, 8 vs 10, 8 vs 12, 10 vs 12 channel settings in quiet listening environment. Whereas in +5 dB SNR listening environment, there was significant difference in SRS between 2 vs 4, 2 vs 6, 2 v 8, 2 vs 10, 2 vs 12, 4 vs 6, 4 vs 8, 4 vs 10, 4 vs 12 channel settings, and no significant difference between 6 vs 8, 6 vs 10, 6 vs 12, 8 vs 10, 8 vs 12, 10 vs 12 channel settings. Conclusions: Participants achieved maximum speech perception benefit with hearing aids in 4 and 6 channel settings in quiet and noisy listening environments respectively. Further, it was noticed that besides greater performance in the quiet listening environment, the presence of background noise considerably degraded speech perception irrespective of channel settings.

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Early Speech Perception Test Outcome in Children with Severe Sensorineural Hearing Loss with Unilateral Cochlear Implants Alone versus Bimodal Stimulation

Nilakantan

Raj

Saini

et al. 2018

Indian J Otolaryngol Head Neck Surg

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Bilateral stimulation of the auditory system has clear advantages over unilateral hearing. Hearing-impaired children are, therefore, generally fitted with hearing aids in both ears so that they can have the benefits of binaural hearing. Children who use acochlear implant in one ear and no acoustic stimulation in the opposite ear are at a definite disadvantage. This study was undertaken to determine the advantages of bimodal stimulation in pediatric population especially in terms of speech recognition. This study comprised of 30 children between 3 and 6 years of age with profound bilateral sensorineural hearing loss with cochlear implant in one ear and fitted with digital hearing aid in non-implanted ear. Speech recognition performance was compared in unilateral cochlear implant only and with bimodal hearing stimulation in the same set of children. A statistically significant difference was found between speech reception scores in children with a unilateral cochlear implant only and those with a cochlear implant in one ear and a hearing aid in the non implanted ear in quiet surroundings. It is suggested that the use of bimodal fitting be considered as an effective management method to obtain the advantage of binaural hearing in children who undergo unilateral cochlear implantation.

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Speech Recognition Performance in Children with Cochlear Implants Using Bimodal Stimulation

Cited by 6 publications

References 13 publications

The Benefits of Residual Hair Cell Function for Speech and Music Perception in Pediatric Bimodal Cochlear Implant Listeners

The Benefits of Residual Hair Cell Function for Speech and Music Perception in Pediatric Bimodal Cochlear Implant Listeners

Speech perception performance of Telugu speaking elderly population and number of compression channels in digital hearing aid technology

Early Speech Perception Test Outcome in Children with Severe Sensorineural Hearing Loss with Unilateral Cochlear Implants Alone versus Bimodal Stimulation

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