scholarly journals Bimodal Benefits for Lexical Tone Recognition: An Investigation on Mandarin-speaking Preschoolers with a Cochlear Implant and a Contralateral Hearing Aid

2020 ◽  
Vol 10 (4) ◽  
pp. 238 ◽  
Author(s):  
Hao Zhang ◽  
Jing Zhang ◽  
Hongwei Ding ◽  
Yang Zhang
Keyword(s):  
Cochlear Implant ◽  
Hearing Aid ◽  
Hearing Threshold ◽  
Low Frequency ◽  
Lexical Tone ◽  
Contributing Factors ◽  
Tone Recognition ◽  
Mandarin Tone ◽  
Auditory Plasticity ◽  
Lexical Tone Recognition

Pitch perception is known to be difficult for individuals with cochlear implant (CI), and adding a hearing aid (HA) in the non-implanted ear is potentially beneficial. The current study aimed to investigate the bimodal benefit for lexical tone recognition in Mandarin-speaking preschoolers using a CI and an HA in opposite ears. The child participants were required to complete tone identification in quiet and in noise with CI + HA in comparison with CI alone. While the bimodal listeners showed confusion between Tone 2 and Tone 3 in recognition, the additional acoustic information from the contralateral HA alleviated confusion between these two tones in quiet. Moreover, significant improvement was demonstrated in the CI + HA condition over the CI alone condition in noise. The bimodal benefit for individual subjects could be predicted by the low-frequency hearing threshold of the non-implanted ear and the duration of bimodal use. The findings support the clinical practice to fit a contralateral HA in the non-implanted ear for the potential benefit in Mandarin tone recognition in CI children. The limitations call for further studies on auditory plasticity on an individual basis to gain insights on the contributing factors to the bimodal benefit or its absence.

Mandarin lexical tone recognition in bimodal cochlear implant users

2020 ◽  
Vol 59 (7) ◽  
pp. 548-555
Author(s):  
Qian Zhou ◽  
Jintao Bi ◽  
Haoheng Song ◽  
Xin Gu ◽  
Bo Liu
Keyword(s):  
Cochlear Implant ◽  
Lexical Tone ◽  
Tone Recognition ◽  
Lexical Tone Recognition

Bimodal Benefits Revealed by Categorical Perception of Lexical Tones in Mandarin-Speaking Kindergarteners With a Cochlear Implant and a Contralateral Hearing Aid

2020 ◽  
Vol 63 (12) ◽  
pp. 4238-4251
Author(s):  
Hao Zhang ◽  
Jing Zhang ◽  
Gang Peng ◽  
Hongwei Ding ◽  
Yang Zhang
Keyword(s):  
Categorical Perception ◽  
Hearing Aid ◽  
Low Frequency ◽  
Lexical Tone ◽  
Linear Mixed Effects ◽  
Lexical Tones ◽  
Speech Stimuli ◽  
Direct Benefits ◽  
Hearing Thresholds ◽  
Mandarin Tone

Purpose Pitch reception poses challenges for individuals with cochlear implants (CIs), and adding a hearing aid (HA) in the nonimplanted ear is potentially beneficial. The current study used fine-scale synthetic speech stimuli to investigate the bimodal benefit for lexical tone categorization in Mandarin-speaking kindergarteners using a CI and an HA in opposite ears. Method The data were collected from 16 participants who were required to complete two classical tasks for speech categorical perception (CP) with CI + HA device condition and CI alone condition. Linear mixed-effects models were constructed to evaluate the identification and discrimination scores across different device conditions. Results The bimodal kindergarteners showed CP for the continuum varying from Mandarin Tone 1 and Tone 2. Moreover, the additional acoustic information from the contralateral HA contributes to improved lexical tone categorization, with a steeper slope, a higher discrimination score of between-category stimuli pair, and an improved peakedness score (i.e., an increased benefit magnitude for discriminations of between-category over within-category pairs) for the CI + HA condition than the CI alone condition. The bimodal kindergarteners with better residual hearing thresholds at 250 Hz level in the nonimplanted ear could perceive lexical tones more categorically. Conclusion The enhanced CP results with bimodal listening provide clear evidence for the clinical practice to fit a contralateral HA in the nonimplanted ear in kindergarteners with unilateral CIs with direct benefits from the low-frequency acoustic hearing.

Mandarin lexical tone recognition in sensorineural hearing-impaired listeners and cochlear implant users

2012 ◽  
Vol 133 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Shuo Wang ◽  
Bo Liu ◽  
Hua Zhang ◽  
Ruijuan Dong ◽  
Robert Mannell ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Lexical Tone ◽  
Tone Recognition ◽  
Lexical Tone Recognition

scholarly journals Masking Effects in the Perception of Multiple Simultaneous Talkers in Normal-Hearing and Cochlear Implant Listeners

2020 ◽  
Vol 24 ◽  
pp. 233121652091610 ◽  
Author(s):  
Biao Chen ◽  
Ying Shi ◽  
Lifang Zhang ◽  
Zhiming Sun ◽  
Yongxin Li ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Normal Hearing ◽  
Speech Signals ◽  
Lexical Tone ◽  
Voice Pitch ◽  
Masking Release ◽  
Tone Recognition ◽  
The Mean ◽  
Lexical Tone Recognition ◽  
Extract Information

For normal-hearing (NH) listeners, monaural factors, such as voice pitch cues, may play an important role in the segregation of speech signals in multitalker environments. However, cochlear implant (CI) users experience difficulties in segregating speech signals in multitalker environments in part due to the coarse spectral resolution. The present study examined how the vocal characteristics of the target and masking talkers influence listeners’ ability to extract information from a target phrase in a multitalker environment. Speech recognition thresholds (SRTs) were measured with one, two, or four masker talkers for different combinations of target-masker vocal characteristics in 10 adult Mandarin-speaking NH listeners and 12 adult Mandarin-speaking CI users. The results showed that CI users performed significantly poorer than NH listeners in the presence of competing talkers. As the number of masker talkers increased, the mean SRTs significantly worsened from –22.0 dB to –5.2 dB for NH listeners but significantly improved from 5.9 dB to 2.8 dB for CI users. The results suggest that the flattened peaks and valleys with increased numbers of competing talkers may reduce NH listeners’ ability to use dips in the spectral and temporal envelopes that allow for “glimpses” of the target speech. However, the flattened temporal envelope of the resultant masker signals may be less disruptive to the amplitude contour of the target speech, which is important for Mandarin-speaking CI users’ lexical tone recognition. The amount of masking release was further estimated by comparing SRTs between the same-sex maskers and the different-sex maskers. There was a large amount of masking release in NH adults (12 dB) and a small but significant amount of masking release in CI adults (2 dB). These results suggest that adult CI users may significantly benefit from voice pitch differences between target and masker speech.

Implementation and preliminary evaluation of ‘C-tone’: A novel algorithm to improve lexical tone recognition in Mandarin-speaking cochlear implant users

2017 ◽  
Vol 18 (5) ◽  
pp. 240-249 ◽  
Author(s):  
Lichuan Ping ◽  
Ningyuan Wang ◽  
Guofang Tang ◽  
Thomas Lu ◽  
Li Yin ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Preliminary Evaluation ◽  
Lexical Tone ◽  
Tone Recognition ◽  
Lexical Tone Recognition ◽  
Novel Algorithm

Criteria for Selecting an Optimal Device for the Contralateral Ear of Children with a Unilateral Cochlear Implant

2015 ◽  
Vol 20 (5) ◽  
pp. 314-321 ◽  
Author(s):  
Sung-Wook Jeong ◽  
Min-Young Kang ◽  
Lee-Suk Kim
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Hearing Threshold ◽  
Low Frequency ◽  
Hearing Level ◽  
Monosyllabic Word ◽  
Low Frequencies ◽  
Speech Perception In Noise ◽  
Clinical Criteria ◽  
Contralateral Ear

Objective: To identify clinical criteria for selecting the aiding device for the contralateral ear of children with a unilateral cochlear implant (CI). Methods: Sixty-five children, including 36 bilateral CI users and 29 bimodal users, participated in the study. A speech perception test (monosyllabic word test) in noise was administered. The target speech (65 dB sound pressure level) was presented from the front loudspeaker, and noise (10 dB signal-to-noise ratio) was presented from 3 directions: from in front of the child and 90° to the child's right and left sides. The test was performed using the first CI alone and under bilateral CI or bimodal conditions. The bilateral benefits to speech perception in noise were compared between bilateral CI users and bimodal users. Results: Significant benefits in speech perception in noise were evident in bilateral CI users in all 3 noise conditions. In bimodal users, the hearing threshold at low frequencies of ≤1 kHz in the nonimplanted ear affected the bilateral benefit. Bimodal users with a low-frequency hearing threshold ≤90 dB hearing level (HL) showed a significant bilateral benefit in various noise conditions. By contrast, bimodal users with a low-frequency hearing threshold >90 dB HL showed no significant bilateral benefits in all 3 noise conditions. Conclusions: Bilateral CI and bimodal listening provide better speech perception in noise than unilateral CI alone in children. The contralateral CI is better than bimodal listening for children with a low-frequency hearing threshold >90 dB HL. A hearing threshold at low frequencies of ≤1 kHz may be a good criterion for deciding on the type of device for the contralateral ear of children with a unilateral CI.

scholarly journals Psychophysical Performance and Mandarin Tone Recognition in Noise by Cochlear Implant Users

2007 ◽  
Vol 28 (Supplement) ◽  
pp. 62S-65S ◽  
Author(s):  
Chaogang Wei ◽  
Keli Cao ◽  
Xin Jin ◽  
Xiaowei Chen ◽  
Fan-Gang Zeng
Keyword(s):  
Cochlear Implant ◽  
Tone Recognition ◽  
Mandarin Tone

Tone nucleus modeling for Chinese lexical tone recognition

2004 ◽  
Vol 42 (3-4) ◽  
pp. 447-466 ◽  
Author(s):  
Jinsong Zhang ◽  
Keikichi Hirose
Keyword(s):  
Lexical Tone ◽  
Tone Recognition ◽  
Lexical Tone Recognition
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