Encoding Temporal Fine Structure for Cochlear Implants
University of Southern California
Summary
The goal of this study is to improve music and speech perception for cochlear implant users. Presently, most cochlear implants discard the temporal fine structure of sound, which is information that is widely believed to contribute to both music and speech perception. The proposed work examines perceptual and physiological changes that occur once this information is provided to cochlear implant users in a clear and consistent manner.
Description
The study goal is to improve music and speech perception for cochlear implant users. The relevant health outcome is their quality of life. This proposal focuses on how well cochlear implant users can learn to use temporal fine structure if provided as a clear and consistent cue for music or voice pitch. Historically, cochlear implants have discarded temporal fine structure and have only transmitted timing information of relatively slow envelope fluctuations. Attempts have been made to restore temporal fine structure into cochlear implant stimulation, but it is unclear whether previous attempts…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Cochlear implant users. Exclusion Criteria: * Younger than 18 years.
Interventions
- BehavioralStimulation Rate
Psychophysical training listening to stimulation rate as a cue for auditory pitch perception. The intervention is the listening rehabilitative exercises. Exercises are completed daily as 30-minute sessions for 2 weeks.
- BehavioralElectrode Location
Psychophysical training listening to electrode location as a cue for auditory pitch perception. The intervention is the listening rehabilitative exercises. Exercises are completed daily as 30-minute sessions for 2 weeks.
Location
- University of Southern CaliforniaLos Angeles, California