Study Results
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View full resultsBasic Information
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COMPLETED
NA
39 participants
INTERVENTIONAL
2021-02-23
2024-07-07
Brief Summary
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Participants: Cochlear implant recipients and normal-hearing listeners Procedures (methods): This is a prospective, longitudinal investigation of the monaural and binaural outcomes (such as speech perception, spatial hearing, and/or subjective benefit) of cochlear implant recipients listening with different programs. The programs will incorporate different patient and device variables to determine the effect on cochlear implant recipient outcomes.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Cochlear implant participants with Default maps
The default frequency filters assigned by the clinical software
default mapping
Default frequency filter assignments
Cochlear implant participants with Place-Based maps
Frequency filters adjusted to align with the cochlear place frequency
place-based mapping
Adjusting the electric frequency filters to align with the cochlear place frequency
Normal hearing controls listening to simulations
Normal hearing controls listening to simulations of default and place-based maps.
place-based mapping
Adjusting the electric frequency filters to align with the cochlear place frequency
default mapping
Default frequency filter assignments
Interventions
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place-based mapping
Adjusting the electric frequency filters to align with the cochlear place frequency
default mapping
Default frequency filter assignments
Eligibility Criteria
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Inclusion Criteria
* 18-80 years of age at time of testing, unaided detection thresholds of 35 dB HL or better from 500-4000 Hz, identify English as native language
Exclusion Criteria
Normal-hearing controls
* Report or present with a cognitive delay or impairment
18 Years
80 Years
ALL
Yes
Sponsors
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National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
University of North Carolina, Chapel Hill
OTHER
Responsible Party
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Principal Investigators
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Margaret T Dillon, AuD, PhD
Role: PRINCIPAL_INVESTIGATOR
University of North Carolina, Chapel Hill
Kevin D Brown, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
University of North Carolina, Chapel Hill
Locations
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UNC ENT at Carolina Crossing
Chapel Hill, North Carolina, United States
Countries
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References
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Dillon MT, Canfarotta MW, Buss E, Rooth MA, Richter ME, Overton AB, Roth NE, Dillon SM, Raymond JH, Young A, Pearson AC, Davis AG, Dedmon MM, Brown KD, O'Connell BP. Influence of Electric Frequency-to-Place Mismatches on the Early Speech Recognition Outcomes for Electric-Acoustic Stimulation Users. Am J Audiol. 2023 Mar;32(1):251-260. doi: 10.1044/2022_AJA-21-00254. Epub 2023 Feb 17.
Dillon MT, O'Connell BP, Canfarotta MW, Buss E, Hopfinger J. Effect of Place-Based Versus Default Mapping Procedures on Masked Speech Recognition: Simulations of Cochlear Implant Alone and Electric-Acoustic Stimulation. Am J Audiol. 2022 Jun 2;31(2):322-337. doi: 10.1044/2022_AJA-21-00123. Epub 2022 Apr 8.
Dillon MT, Canfarotta MW, Buss E, Hopfinger J, O'Connell BP. Effectiveness of Place-based Mapping in Electric-Acoustic Stimulation Devices. Otol Neurotol. 2021 Jan;42(1):197-202. doi: 10.1097/MAO.0000000000002965.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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20-3022
Identifier Type: -
Identifier Source: org_study_id
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