Aging Clinical Trial - Peripheral & Central Influences on Auditory

Status Enrolling by invitation

Clinical Trial Summary

Older adults who use cochlear implants to address hearing loss show wide variation in benefit. This research investigates the role of normal aging, the health of peripheral and central auditory pathways, and positioning of the cochlear implant electrode array in contributing to this variability. A range of input types from simple auditory signals to spoken sentences is used to examine these questions.

Clinical Trial Description

This research aims to understand age-related temporal processing in older cochlear-implant (CI) users. The overall objective is to disentangle the peripheral and central contributions to age-related temporal processing deficits in this population. The central hypothesis is that age-related speech perception deficits are explained by unique contributions from peripheral and central auditory functions, significantly affecting outcomes in older CI users. The central hypothesis will be tested by determining (1) the extent to which temporal processing of simple signals from single-electrode stimulation can be explained by aging and the peripheral electrode-to-neural interface; (2) the extent to which speech perception can be explained by aging and the peripheral electrode-to-neural interface; (3) the extent and manner in which central auditory compensation overcomes peripheral processing deficits that contribute to age-related performance declines in CI subjects. Outcome measures collected in this project include behavioral measures of speech and auditory perception and electrophysiological responses. Also collected are questionnaire-based reports of history of CI device use, cognitive screening measures, and imaging-based information regarding electrode placement in the cochlea. Better understanding of the locus of age-related temporal processing deficits in this population will aid in developing age-specific guidance regarding CI candidacy, programming, and rehabilitation, thereby improving expected benefit and quality of life. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05554692
Study type	Interventional
Source	University of Maryland, College Park
Contact
Status	Enrolling by invitation
Phase	N/A
Start date	August 3, 2022
Completion date	March 2027

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Peripheral and Central Influences on Auditory Temporal Processing & Speech Perception in Older Cochlear Implantees

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms