Cochlear implantation with hearing preservation yields significant benefit for speech recognition in complex listening environments.
René H Gifford, Michael F Dorman, Henryk Skarzynski...
https://pubmed.ncbi.nlm.nih.gov/23446225Actively Recruiting
Age: 5Years +
All Genders
Healthy Volunteers
ID07356128
Binaural Cue Sensitivity in Children and Adults With Combined Electric and Acoustic Stimulation
Led by Hearts for Hearing · Updated on 2026-01-21
200
Participants Needed
1
Research Sites
52 weeks
Total Duration
On this page
Sponsors
H
Hearts for Hearing
Lead Sponsor
N
National Institute on Deafness and Other Communication Disorders (NIDCD)
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are studying binaural hearing abilities in both adults and children who use cochlear implants with preserved natural hearing, allowing combined Electric and Acoustic Stimulation (EAS). This research aims to understand the patterns of benefit from EAS, especially in children, and to explore how hearing develops with this technology compared to individuals with normal hearing. The study seeks to fill gaps in knowledge about EAS outcomes and improve clinical care for cochlear implant users. Participants include adults and children with sensorineural hearing loss using EAS technology, as well as age-matched individuals with normal hearing. The study tracks behavioral and brain responses to sounds to assess sensitivity to timing and level differences between ears. These measures are collected over time to evaluate speech recognition in noise and spatial hearing abilities. The study does not provide treatment but observes hearing using specialized tests. During the study, participants will undergo evaluations of hearing abilities and binaural processing at multiple points over two years. Researchers will collect data on speech understanding and spatial hearing performance, using objective and behavioral measures. The results will help understand how binaural hearing develops with EAS and guide improvements in cochlear implant fittings and clinical recommendations. Participation lasts for up to two years with ongoing assessments to monitor changes in hearing function.
CONDITIONS
Brief Title
Binaural Cue Sensitivity in Children and Adults With Combined Electric and Acoustic Stimulation
Who Can Participate
Age: 5Years +
All Genders
Healthy Volunteers
Eligibility Criteria
You may qualify if you...
- Pediatric participants aged 5 to 17 years
- Adult participants aged 18 years and older
- At least one cochlear implant with bilateral mild to profound sensorineural hearing loss
- Unaided hearing thresholds no worse than 80 dB HL at 125 and 250 Hz in both ears
- Willingness to use combined Electric and Acoustic Stimulation technology in implanted ear(s), confirmed by data logging
- Nonverbal cognitive abilities within typical range
- No co-existing diagnoses such as autism, auditory neuropathy, neurological disorders, or general cognitive impairment
- Use of spoken English as the main language of communication
- Children and adults with normal hearing must have audiometric thresholds of 20 dB HL or better from 250 to 8000 Hz
You will not qualify if you...
- Single-sided deafness (hearing loss in only one ear)
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
1
2
3
Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Monitoring
Duration - Up to 2 years
Participants with and without hearing loss are observed over time to assess binaural processing, speech recognition in noise, and spatial hearing abilities.
Repeated visits over 2 years for behavioral and electrophysiologic assessments
Trial Site Locations
Total: 1 location
1
Hearts for Hearing
Oklahoma City, Oklahoma, United States, 73120
Actively Recruiting
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Research Team
R
Rene H Gifford, PhD
S
Sara Neumann, AuD
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
4
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Published Research Related To This Trial
Combined Electric and Acoustic Stimulation With Hearing Preservation: Effect of Cochlear Implant Low-Frequency Cutoff on Speech Understanding and Perceived Listening Difficulty.
René H Gifford, Timothy J Davis, Linsey W Sunderhaus...
https://pubmed.ncbi.nlm.nih.gov/28301392Binaural cue sensitivity in cochlear implant recipients with acoustic hearing preservation.
René H Gifford, G Christopher Stecker
https://pubmed.ncbi.nlm.nih.gov/32182551Cochlear Implantation and Electric Acoustic Stimulation in Children With TMPRSS3 Genetic Mutation.
Jourdan T Holder, William Morrel, Alejandro Rivas...
https://pubmed.ncbi.nlm.nih.gov/33555745Combined Electric and Acoustic Stimulation (EAS) in Children: Investigating Benefit Afforded by Bilateral Versus Unilateral Acoustic Hearing.
Jillian B Roberts, G Christopher Stecker, Jourdan T Holder...
https://pubmed.ncbi.nlm.nih.gov/33859136Cochlear implant spectral bandwidth for optimizing electric and acoustic stimulation (EAS).
René H Gifford, Linsey W Sunderhaus, Benoit M Dawant...
https://pubmed.ncbi.nlm.nih.gov/35985964Hybrid Cochlear Implant Outcomes and Improving Outcomes With Electric-Acoustic Stimulation.
Paul Reinhart, Aaron Parkinson, René H Gifford
https://pubmed.ncbi.nlm.nih.gov/39514431Objective measure of binaural processing: Acoustic change complex in response to interaural phase differences.
Yibo Fan, René H Gifford
https://pubmed.ncbi.nlm.nih.gov/38763034