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P300 in bimodal CI-users

Lindsey Van Yper, Andy Beynon, KATRIEN VERMEIRE and Ingeborg Dhooge UGent (2015) Implantable Auditory Prostheses, Conference abstracts.
abstract
Introduction: Bimodal listeners combine a cochlear implant (CI) with a contralateral hearing aid (HA). Psychoacoustic research shows that bimodal listening can improve speech perception in noise, sound localization, and music appreciation. Nevertheless, a substantial proportion of bimodal listeners cease to wear the HA shortly after implantation. To date, there is no consensus on whether or not bimodal listening is preferred in a given individual or population. This study examines whether endogenous auditory evoked cortical responses can be used to assess bimodal benefit. Methods: Six experienced CI-users were included in the study. Three used a HA in daily life, whereas the others did not wear a HA. All subjects were implanted with either the Nucleus CI24RE(CA) or CI422 and had low-frequency residual hearing in the non-implanted ear. The cognitive P300 response was elicited using an oddball paradigm with a 500 Hz tone-burst as the standard and a 250 Hz tone-burst as the deviant stimulus. P300s were recorded in the CI-only (i.e. with the contralateral ear plugged) and the bimodal condition (i.e. CI and HA or CI and residual hearing, depending on the subject’s daily use). Results: Overall, P300 morphology was clearer in the bimodal compared to the CI-only condition. Amplitudes in the bimodal and CI-only condition were respectively 17.39 μV and 11.63 μV. Latencies were 262 ms (SD 30.0 ms) in the bimodal and 281 ms (SD 49.2 ms) in the CI-only condition. Interestingly, the trend of shorter latencies for the bimodal compared to the CI-only condition was only observed in the subjects who wear a HA in daily life. Conclusion: Preliminary data reveal that the bimodal condition elicited better P300 responses than the CI-only condition, especially in subjects who wear a hearing aid in daily life.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
Implantable Auditory Prostheses, Conference abstracts
conference name
2015 Conference on Implantable Auditory Prostheses (CIAP)
conference location
Lake Tahoe, CA, USA
conference start
2015-07-12
conference end
2015-07-17
language
English
UGent publication?
yes
classification
C3
id
7088787
handle
http://hdl.handle.net/1854/LU-7088787
date created
2016-02-17 14:32:03
date last changed
2016-12-19 15:37:16
@inproceedings{7088787,
  abstract     = {Introduction: Bimodal listeners combine a cochlear implant (CI) with a contralateral hearing aid (HA). Psychoacoustic research shows that bimodal listening can improve speech perception in noise, sound localization, and music appreciation. Nevertheless, a substantial proportion of bimodal listeners cease to wear the HA shortly after implantation. To date, there is no consensus on whether or not bimodal listening is preferred in a given individual or population. This study examines whether endogenous auditory evoked cortical responses can be used to assess bimodal benefit.
Methods: Six experienced CI-users were included in the study. Three used a HA in daily life, whereas the others did not wear a HA. All subjects were implanted with either the Nucleus CI24RE(CA) or CI422 and had low-frequency residual hearing in the non-implanted ear. The cognitive P300 response was elicited using an oddball paradigm with a 500 Hz tone-burst as the standard and a 250 Hz tone-burst as the deviant stimulus. P300s were recorded in the CI-only (i.e. with the contralateral ear plugged) and the bimodal condition (i.e. CI and HA or CI and residual hearing, depending on the subject{\textquoteright}s daily use).
Results: Overall, P300 morphology was clearer in the bimodal compared to the CI-only condition. Amplitudes in the bimodal and CI-only condition were respectively 17.39 \ensuremath{\mu}V and 11.63 \ensuremath{\mu}V. Latencies were 262 ms (SD 30.0 ms) in the bimodal and 281 ms (SD 49.2 ms) in the CI-only condition. Interestingly, the trend of shorter latencies for the bimodal compared to the CI-only condition was only observed in the subjects who wear a HA in daily life.
Conclusion: Preliminary data reveal that the bimodal condition elicited better P300 responses than the CI-only condition, especially in subjects who wear a hearing aid in daily life.},
  author       = {Van Yper, Lindsey and Beynon, Andy and VERMEIRE, KATRIEN and Dhooge, Ingeborg},
  booktitle    = {Implantable Auditory Prostheses, Conference abstracts},
  language     = {eng},
  location     = {Lake Tahoe, CA, USA},
  title        = {P300 in bimodal CI-users},
  year         = {2015},
}

Chicago
Van Yper, Lindsey, Andy Beynon, KATRIEN VERMEIRE, and Ingeborg Dhooge. 2015. “P300 in Bimodal CI-users.” In Implantable Auditory Prostheses, Conference Abstracts.
APA
Van Yper, L., Beynon, A., VERMEIRE, K., & Dhooge, I. (2015). P300 in bimodal CI-users. Implantable Auditory Prostheses, Conference abstracts. Presented at the 2015 Conference on Implantable Auditory Prostheses (CIAP).
Vancouver
1.
Van Yper L, Beynon A, VERMEIRE K, Dhooge I. P300 in bimodal CI-users. Implantable Auditory Prostheses, Conference abstracts. 2015.
MLA
Van Yper, Lindsey, Andy Beynon, KATRIEN VERMEIRE, et al. “P300 in Bimodal CI-users.” Implantable Auditory Prostheses, Conference Abstracts. 2015. Print.