NCT05867173NARecruitingAccepts Healthy Volunteers

Perceptual Consequences of Cochlear Implant Electrode-neuron Interfaces

Massachusetts Eye and Ear Infirmary

Start Date

9/16/2022

Completion Date

3/31/2027

Summary

Despite the success of cochlear implants, devices surgically placed in the inner ears of patients with severe hearing loss, there remains substantial variability in the overall speech perception outcomes for the children and adults who receive them. The main goals of this project are: i) to improve our understanding of how cochlear implants affect the developing auditory system, ii) apply that knowledge to test new methods for programming children and adults, and iii) to study how long it takes listeners to adapt to new cochlear implant programs over the short- and long-term. The results will improve our understanding of how the deafened auditory system develops with cochlear implant stimulation and advance clinical practice to improve hearing outcomes in cochlear implant listeners.

Eligibility Criteria

Age Range: No minimum to No maximum

Inclusion Criteria: Research Subjects with a Cochlear Implant ADULTS Inclusion Criteria * Adult at least 18 years old * Native speakers of American English * Wears a cochlear implant manufactured by Advanced Bionics (Clarion Hi-Focus I or newer), Cochlear, or MED-EL CHILDREN Inclusion Criteria * Children at least 3 months old * Native speakers of American English * Wears a cochlear implant manufactured by Advanced Bionics (Clarion Hi-Focus I or newer), Cochlear, or MED-EL * For both children and adults with a cochlear implant, some study criteria might pertain to a subset of subjects, such as a specific age at which the subjects developed a hearing loss, or was implanted. Exclusion Criteria: Exclusion for all Cochlear Implant Subjects: * Inability to provide informed consent * Does not meet the inclusion criteria for a specific study protocol, such as age of onset of hearing loss, age of cochlear implantation, duration of deafness, number of active electrodes in the cochlear implant device * Unable to carry out the study protocol or tasks required in the study Exclusion for all Normal Hearing Subjects: * Inability to provide informed consent * Hearing loss, or significant history of hearing related issues * Unable to carry out the study protocol or tasks required in the study

Interventions

OTHER

Experimental Speech Processing Strategy

Interested in This Trial?

Contact the trial locations directly using the information below to learn more about enrollment.

Expressing interest lets you review the study and consent before we connect you with the research site.

Conditions

Deafness

Locations

Mass Eye and Ear

Boston, Massachusetts 02114

United States

Boston Children's Hospital

Waltham, Massachusetts 02453

United States