+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Advantages from bilateral hearing in speech perception in noise with simulated cochlear implants and residual acoustic hearing



Advantages from bilateral hearing in speech perception in noise with simulated cochlear implants and residual acoustic hearing



Journal of the Acoustical Society of America 133(2): 1017-1030



Acoustic simulations were used to study the contributions of spatial hearing that may arise from combining a cochlear implant with either a second implant or contralateral residual low-frequency acoustic hearing. Speech reception thresholds (SRTs) were measured in twenty-talker babble. Spatial separation of speech and noise was simulated using a spherical head model. While low-frequency acoustic information contralateral to the implant simulation produced substantially better SRTs there was no effect of spatial cues on SRT, even when interaural differences were artificially enhanced. Simulated bilateral implants showed a significant head shadow effect, but no binaural unmasking based on interaural time differences, and weak, inconsistent overall spatial release from masking. There was also a small but significant non-spatial summation effect. It appears that typical cochlear implant speech processing strategies may substantially reduce the utility of spatial cues, even in the absence of degraded neural processing arising from auditory deprivation.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 051401796

Download citation: RISBibTeXText

PMID: 23363118

DOI: 10.1121/1.4773274


Related references

Training of Speech Perception in Noise in Pre-Lingual Hearing Impaired Adults With Cochlear Implants Compared With Normal Hearing Adults. Otology and Neurotology 40(3): E316, 2019

7-year speech perception results and the effects of age, residual hearing and preimplant speech perception in prelingually deaf children using the Nucleus and Clarion cochlear implants. Advances in Oto-Rhino-Laryngology 57: 305-310, 2000

Speech recognition in noise for cochlear implant listeners: benefits of residual acoustic hearing. Journal of the Acoustical Society of America 115(4): 1729-1735, 2004

Direct Acoustic Cochlear Implants Lead to an Improved Speech Perception Gap Compared to Conventional Hearing Aid. Otology and Neurotology 39(9): 1147-1152, 2018

Factors influencing speech perception in noise for 5-year-old children using hearing aids or cochlear implants. International Journal of Audiology 57(Sup2): S70, 2018

The relative phonetic contributions of a cochlear implant and residual acoustic hearing to bimodal speech perception. Journal of the Acoustical Society of America 131(1): 518-530, 2012

Speech recognition in noise as a function of the number of spectral channels: comparison of acoustic hearing and cochlear implants. Journal of the Acoustical Society of America 110(2): 1150-1163, 2001

Perception of acoustic speech features with single channel cochlear implants and hearing aids. A comparative analysis. Hno 36(8): 335-341, 1988

The effect of different cochlear implant microphones on acoustic hearing individuals' binaural benefits for speech perception in noise. Ear and Hearing 32(4): 468-484, 2011

Speech perception with combined electric-acoustic stimulation and bilateral cochlear implants in a multisource noise field. Ear and Hearing 34(3): 324-332, 2013

The Effect of Residual Acoustic Hearing and Adaptation to Uncertainty on Speech Perception in Cochlear Implant Users: Evidence From Eye-Tracking. Ear and Hearing 37(1): E37, 2016

Speech perception benefit for children with a cochlear implant and a hearing aid in opposite ears and children with bilateral cochlear implants. Audiology and Neuro-Otology 15(1): 44-56, 2010

Trimodal speech perception: how residual acoustic hearing supplements cochlear-implant consonant recognition in the presence of visual cues. Ear and Hearing 36(3): E99-112, 2015

Spatial acuity in 2-to-3-year-old children with normal acoustic hearing, unilateral cochlear implants, and bilateral cochlear implants. Ear and Hearing 33(5): 561-572, 2012

Comparison of the residual hearing on the profound hearing-impaired children with the hearing aids and cochlear implants. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 24(24): 1123-1125, 2010