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Binaural integration of acoustical and electrical signals in bimodal patients

Lindsey Van Yper, KATRIEN VERMEIRE (UGent) , EDDY DE VEL (UGent) and Ingeborg Dhooge (UGent)
(2012) Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting abstracts.
Author
Organization
Abstract
Introduction Bimodal hearing refers to the condition in which electrical hearing via a cochlear implant (CI) is combined with acoustical, residual hearing in the non-implanted ear. Previous research demonstrated advantages in speech perception in noise and sound localization. Mechanisms underlying these benefits are still unclear. The objective of this study is to gain insight into developmental changes in binaural interaction with increasing bimodal experience. Methods One bimodal listeners (female, aged 62 years) is tested three, six and twelve months post-implantation. Binaural hearing is assessed by means of speech perception in noise tests, sound localization tests and questionnaires. Results Performance on binaural tasks improved with increasing experience with bimodal fitting. Conclusion These results suggest that the ability to combine electrical and acoustical signals improves with increasing bimodal experience. In addition to these behavioral measures, binaural interaction can also be assessed using ABR. A binaural interaction component can be derived from the ABR (ABR-BIC) by subtracting the response elicited during binaural stimulation from the sum of both monaural responses [(L+R)-B]. The presence of an ABR-BIC is evidence for binaural interaction. Therefore, it is expected that this response will develop with increasing bimodal experience. A protocol for ABR-BIC recording in bimodal patients will be presented.

Citation

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MLA
Van Yper, Lindsey, et al. “Binaural Integration of Acoustical and Electrical Signals in Bimodal Patients.” Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting Abstracts, 2012.
APA
Van Yper, L., VERMEIRE, K., DE VEL, E., & Dhooge, I. (2012). Binaural integration of acoustical and electrical signals in bimodal patients. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting Abstracts. Presented at the Meeting of the Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Wilrijk, Belgium.
Chicago author-date
Van Yper, Lindsey, KATRIEN VERMEIRE, EDDY DE VEL, and Ingeborg Dhooge. 2012. “Binaural Integration of Acoustical and Electrical Signals in Bimodal Patients.” In Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting Abstracts.
Chicago author-date (all authors)
Van Yper, Lindsey, KATRIEN VERMEIRE, EDDY DE VEL, and Ingeborg Dhooge. 2012. “Binaural Integration of Acoustical and Electrical Signals in Bimodal Patients.” In Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting Abstracts.
Vancouver
1.
Van Yper L, VERMEIRE K, DE VEL E, Dhooge I. Binaural integration of acoustical and electrical signals in bimodal patients. In: Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting abstracts. 2012.
IEEE
[1]
L. Van Yper, K. VERMEIRE, E. DE VEL, and I. Dhooge, “Binaural integration of acoustical and electrical signals in bimodal patients,” in Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting abstracts, Wilrijk, Belgium, 2012.
@inproceedings{7089087,
  abstract     = {{Introduction Bimodal hearing refers to the condition in which electrical hearing via a cochlear implant (CI) is combined with acoustical, residual hearing in the non-implanted ear. Previous research demonstrated advantages in speech perception in noise and sound localization. Mechanisms underlying these benefits are still unclear. The objective of this study is to gain insight into developmental changes in binaural interaction with increasing bimodal experience. 
Methods One bimodal listeners (female, aged 62 years) is tested three, six and twelve months post-implantation. Binaural hearing is assessed by means of speech perception in noise tests, sound localization tests and questionnaires.
Results Performance on binaural tasks improved with increasing experience with bimodal fitting.  
Conclusion These results suggest that the ability to combine electrical and acoustical signals improves with increasing bimodal experience. In addition to these behavioral measures, binaural interaction can also be assessed using ABR. A binaural interaction component can be derived from the ABR (ABR-BIC) by subtracting the response elicited during binaural stimulation from the sum of both monaural responses [(L+R)-B]. The presence of an ABR-BIC is evidence for binaural interaction. Therefore, it is expected that this response will develop with increasing bimodal experience. A protocol for ABR-BIC recording in bimodal patients will be presented.}},
  author       = {{Van Yper, Lindsey and VERMEIRE, KATRIEN and DE VEL, EDDY and Dhooge, Ingeborg}},
  booktitle    = {{Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, Meeting abstracts}},
  language     = {{eng}},
  location     = {{Wilrijk, Belgium}},
  title        = {{Binaural integration of acoustical and electrical signals in bimodal patients}},
  year         = {{2012}},
}