Presbycusis
Conditions
Keywords
age-related hearing loss, taVNS, vagus nerve stimulation, presbycusis, hearing aids
Brief summary
Hearing loss, especially for speech perception in the presence of noise, may lead older individuals to withdraw from social situations. While hearing aids help amplify sound and are useful in many situations, they can be ineffective in noisy contexts. The proposed pilot study will evaluate taVNS for improving speech in noise perception in adults with age-related hearing loss.
Interventions
active electrical stimulation applied to the cymba conchae of the left ear
electrical stimulation applied to a location on the ear not innervated by the auricular vagus
Sponsors
Study design
Eligibility
Inclusion criteria
* Adults 55-80 years old * Normal hearing or age-related hearing loss (with or without hearing aids)
Exclusion criteria
* History of traumatic brain injury or noise trauma * Implanted medical devices (eg., pacemaker) or ferrous metal * Known history of heart conditions * Medications that impact neurotransmitters released by vagus nerve stimulation
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Speech in noise performance | 2 weeks | Percent correct on a speech in noise perception task in participants receiving Treatment A compared to Treatment B |
Other
| Measure | Time frame | Description |
|---|---|---|
| Predictive value of audiometric testing | 2 weeks | Scores on audiometric battery measures and how they differ in those receiving treatment A compared to those receiving treatment B |
| Predictive value of brain measures | 2 weeks | Level of baseline GABA levels in primary auditory cortex prior to and following intervention in those receiving Treatment A compared to those receiving Treatment B |
Countries
United States