A comparison of the speech recognition and pitch ranking abilities of children using a unilateral cochlear implant, bimodal stimulation or bilateral hearing aids

Looi, Valerie; Radford, Christopher John

doi:10.1016/j.ijporl.2010.12.023

Cited by 40 publications

(34 citation statements)

References 55 publications

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“…They hypothesized that the reduction in available F0 voicing cues makes sound source segregation difficult. Additional support for this hypothesis is found in studies of bimodal hearing in which the CI user has residual hearing in the non-implanted ear (Looi and Radford 2011;Rader et al 2013). The general finding of these studies is that the residual acoustic hearing improves both complex tone pitch perception as well as speech reception in noise even when the acoustic hearing does not provide sufficient cues for speech reception by itself.…”

Section: Introductionmentioning

confidence: 88%

Correlations Between Pitch and Phoneme Perception in Cochlear Implant Users and Their Normal Hearing Peers

Goldsworthy

2015

JARO

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This study examined correlations between pitch and phoneme perception for nine cochlear implant users and nine normal hearing listeners. Pure tone frequency discrimination thresholds were measured for frequencies of 500, 1000, and 2000 Hz. Complex tone fundamental frequency (F0) discrimination thresholds were measured for F0s of 110, 220, and 440 Hz. The effects of amplitude and frequency roving were measured under the rationale that individuals who are robust to such perturbations would perform better on phoneme perception measures. Phoneme identification was measured using consonant and vowel materials in quiet, in stationary speech-shaped noise (SSN), in spectrally notched SSN, and in temporally gated SSN. Cochlear implant pure tone frequency discrimination thresholds ranged between 1.5 and 9.9 %, while cochlear implant complex tone F0 discrimination thresholds ranged between 2.6 and 28.5 %. On average, cochlear implant users had 5.3 dB of masking release for consonants and 8.4 dB of masking release for vowels when measured in temporally gated SSN compared to stationary SSN. Correlations with phoneme identification measures were generally higher for complex tone discrimination measures than for pure tone discrimination measures. Correlations with phoneme identification measures were also generally higher for pitch perception measures that included amplitude and frequency roving. The strongest correlations were observed for measures of complex tone F0 discrimination with phoneme identification in temporally gated SSN. The results of this study suggest that musical training or signal processing strategies that improve F0 discrimination should improve consonant identification in fluctuating noise.

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Section: Introductionmentioning

confidence: 88%

Correlations Between Pitch and Phoneme Perception in Cochlear Implant Users and Their Normal Hearing Peers

Goldsworthy

2015

JARO

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“…The findings of Looi and Radford 79 suggest that results for children may be slightly different. They compared four groups of children-NH, CI alone, HA alone, and children using BMS-on a pitch-ranking task.…”

Section: Music Perception With Electro-acoustic Stimulationmentioning

confidence: 93%

Music Appreciation and Training for Cochlear Implant Recipients: A Review

Looi¹,

2012

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In recent years, there has been increasing interest in music perception of cochlear implant (CI) recipients, and a growing body of research conducted in this area. The majority of these studies have examined perceptual accuracy for pitch, rhythm, and timbre. Another important, but less commonly studied aspect of music listening is appreciation, or appraisal. Despite the ongoing research into potential technological improvements that may improve music perception for recipients, both perceptual accuracy and appreciation generally remain poor for most recipients. Whilst perceptual accuracy for music is important, appreciation and enjoyment also warrants research as it also contributes to clinical outcomes and perceived benefits. Music training is being shown to offer excellent potential for improving music perception and appreciation for recipients. Therefore, the primary topics of this review are music appreciation and training. However, a brief overview of the psychoacoustic, technical, and physiological factors associated with a recipient’s perception of music is provided, as these are important factors in understanding the listening experience for CI recipients. The purpose of this review is to summarize key papers that have investigated these issues, in order to demonstrate that i) music enjoyment and appraisal is an important and valid consideration in evaluating music outcomes for recipients, and ii) that music training can improve music listening for many recipients, and is something that can be offered to persons using current technology.

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“…While much research has been conducted regarding speech perception, speech prosody and localization, fewer studies have addressed bimodal music perception in the pediatric population. Looi and Radford [11] compared children with NH to children with bilateral HAs, CI only and bimodal listeners. They postulated the recipients with the bimodal listening condition would show superior performance on pitch ranking when compared to children with CI only.…”

Section: Introductionmentioning

confidence: 99%