Actively Recruiting
Quantification of Visually Evoked Cortical Potentials in Individuals With Hearing Loss
Led by Dartmouth-Hitchcock Medical Center · Updated on 2025-10-29
100
Participants Needed
1
Research Sites
8 weeks
Total Duration
On this page
Sponsors
D
Dartmouth-Hitchcock Medical Center
Lead Sponsor
D
Dartmouth College
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are exploring whether a test called the Visual Evoked Potential (VEP), which measures brain waves in response to visual images, can be used in a new way for people with hearing loss. This study focuses on a specific brain response known as the P300 wave, which happens after the initial 1-2 seconds of seeing new or different images or sounds. The goal is to see if this test can help predict how well a hearing aid or cochlear implant might work for individuals with hearing loss. Participants will attend two appointments for testing. The first appointment includes a brief vision test followed by VEP testing, where electrodes are placed on the scalp to measure brain responses while watching images on a computer screen. The second appointment involves auditory tests, cognitive and mood assessments, and for those with cochlear implants, a sound quality survey. These tests compare brain and hearing responses between adults with and without hearing loss. During the study, participants will complete various tests and questionnaires to assess brain activity, hearing ability, cognitive function, mood, and cochlear implant sound quality if applicable. The main outcomes measured are the timing and strength of the P300 brain wave. Secondary outcomes include auditory processing, cognitive test scores, and mood assessments. Each testing session lasts from about 5 minutes to 45 minutes depending on the test. This research aims to improve understanding of hearing loss treatment outcomes and lasts until October 2026.
CONDITIONS
Brief Title
Quantification of Visually Evoked Cortical Potentials in Individuals With Hearing Loss
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults aged over 18 years
- Participants recruited from the Otolaryngology/Audiology clinic at Dartmouth-Hitchcock Medical Center
- Current and new patients receiving care in the DHMC Otolaryngology clinic or employees of Dartmouth College, DHMC, and the community under COVID guidelines
- Subjects with various degrees of hearing loss and central auditory processing dysfunction
You will not qualify if you...
- Patients with known brain pathology such as CNS tumors or stroke
- Patients with severe neurological or neuropsychological disorders
- Patients with a history of seizures
- Patients with known blindness
- Adults unable to consent
- Individuals who are not adults (infants, children, teenagers)
- Prisoners
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - Two appointments scheduled at participant convenience
Participants complete two research appointments to undergo various assessments including a vision test, Visual Evoked Potential testing, auditory tests, cognitive and mood assessments, and a cochlear implant sound quality survey for those with implants.
2 visits (in-person)
Trial Site Locations
Total: 1 location
1
Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, United States, 03766
Actively Recruiting
Research Team
M
Michaela M Geffert, BS
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
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