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Hearing and Donuts (Brain and Bagels) Seminar

February 18 @ 8:30 am - 9:30 am

Presenter: Bobby Gibbs, Ph.D., Assistant Research Scientist, Department of Hearing and Speech Sciences, University of Maryland College Park
Topic: Considering How the Electrode-to-Neural Interface Impacts the Use of Partial Information in Cochlear Implant Recipients

To understand speech in the presence of a monaural masker co-located with the target, listeners with clinically normal hearing benefit from amplitude modulations in the masker that provide brief “glimpses” of the target. The partial speech information available from the glimpses results in an intelligibility benefit called (monaural) release from masking. Presenting the masker at a different location than the target also provides a benefit called spatial release from masking. Listeners who use the auditory prosthetic of a cochlear implant (CI) obtain less monaural and spatial release from masking than those with normal hearing. I will outline postdoctoral research that demonstrates how diminished monaural and spatial release from masking in CI listeners may be related to a different mechanism of extracting glimpses compared to normal hearing listeners. I will also present recent data on how asymmetry in the electrode-to-neural interface (differences across the ears in the preservation of neurons available for CI stimulation and the distance of those neurons from stimulating electrodes) impacts sensitivity to interaural time differences, cues that are important for spatial release from masking. Finally, I will present future directions for revealing shifts in the use of partial information related to differences in the CI electrode-to-neural interface.


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Details

Date:
February 18
Time:
8:30 am - 9:30 am
Event Category:
Website:
https://bhsl.waisman.wisc.edu/brain-and-bagels-seminar/

Venue

Online: Zoom