Project 1: Acoustic Plus Electric Hearing Preservation of residual acoustic hearing during cochlear implantation has become an important improvement in the performance of cochlear implants. Not only does it improve the performance of implants (particularly for noisy, real-world listening conditions) but also allows the treatment of patients with severe high-frequency hearing loss, who have substantial low-frequency hearing. This project proposes to continue this work on combining acoustic plus electric (A+E) hearing. In addition to the overall goal of improving patient care for hearing loss, several unique research opportunities arise from this work. The first opportunity arises because of the new population of patients that will be implanted with these A+E devices. Never before have patients with such high levels of pre-operative residual hearing been implanted in such a large- scale project. We are at the same time seeing levels of performance for the transmission of speech through the short electrode that are surprising in light of the previous literature. This will allow us to re-examine some of the commonly held beliefs about the limitations of electric stimulation due to channel interaction. The second opportunity arises because the short-electrode Hybrid implant assigns low- and mid-frequency speech bands to extreme basal locations in the cochlea. Thus we have a unique opportunity to study the effects of remapping, neural plasticity, and adaptation to highly-distorted place-frequency maps in the cochlea.
This research has the potential to continue to influence clinical practice. The new populations of patients will be implanted with hearing preservation devices will allow us to potentially expand the performance ceilings for all cochlear implants. The knowledge we gain regarding adapting to these new hearing preservation electrodes will influence the designs of implants in the future as well.
|McMurray, Bob; Farris-Trimble, Ashley; Rigler, Hannah (2017) Waiting for lexical access: Cochlear implants or severely degraded input lead listeners to process speech less incrementally. Cognition 169:147-164|
|Tejani, Viral D; Abbas, Paul J; Brown, Carolyn J (2017) Relationship Between Peripheral and Psychophysical Measures of Amplitude Modulation Detection in Cochlear Implant Users. Ear Hear 38:e268-e284|
|Guo, Ling-Yu; Spencer, Linda J (2017) Development of Grammatical Accuracy in English-Speaking Children With Cochlear Implants: A Longitudinal Study. J Speech Lang Hear Res 60:1062-1075|
|Abbas, Paul J; Tejani, Viral D; Scheperle, Rachel A et al. (2017) Using Neural Response Telemetry to Monitor Physiological Responses to Acoustic Stimulation in Hybrid Cochlear Implant Users. Ear Hear 38:409-425|
|Shearer, A Eliot; Eppsteiner, Robert W; Frees, Kathy et al. (2017) Genetic variants in the peripheral auditory system significantly affect adult cochlear implant performance. Hear Res 348:138-142|
|Sjoberg, Kristin M; Driscoll, Virginia D; Gfeller, Kate et al. (2017) The impact of electric hearing on children's timbre and pitch perception and talker discrimination. Cochlear Implants Int 18:36-48|
|Samuelson, Larissa K; McMurray, Bob (2017) What does it take to learn a word? Wiley Interdiscip Rev Cogn Sci 8:|
|Oleson, Jacob J; Cavanaugh, Joseph E; McMurray, Bob et al. (2017) Detecting time-specific differences between temporal nonlinear curves: Analyzing data from the visual world paradigm. Stat Methods Med Res 26:2708-2725|
|Scheperle, Rachel A; Tejani, Viral D; Omtvedt, Julia K et al. (2017) Delayed changes in auditory status in cochlear implant users with preserved acoustic hearing. Hear Res 350:45-57|
|Brown, Carolyn J; Jeon, Eun-Kyung; Driscoll, Virginia et al. (2017) Effects of Long-Term Musical Training on Cortical Auditory Evoked Potentials. Ear Hear 38:e74-e84|
Showing the most recent 10 out of 227 publications