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Tradeoff Between Spatial and Temporal Resolution

NCT03867058 · Status: TERMINATED · Type: OBSERVATIONAL · Enrollment: 53

Last updated 2023-04-07

No results posted yet for this study

Summary

In this study, investigators will examine how temporal rate processing might be affected when the width of neural excitation narrows. The manipulation of neural excitation width will be achieved for example by changing electrode configurations or stimulating single versus multiple electrodes simultaneously. Investigators will then measure if the extent to which rate processing is affected by spatially restricted stimulation can predict a subject's overall speech recognition and predict also whether the subject is likely to benefit from a focused electrode configuration. Lastly, investigators will introduce and test a novel current focusing strategy where current focusing is applied in a channel specific manner and quantify if this intervention improves speech recognition. The primary endpoint of the study is speech recognition, and the secondary endpoint is psychophysical sensitivity to stimulation rate change.

Conditions

  • Deafness

Interventions

BEHAVIORAL

Electrode selection/electrode configuration

Electrodes will be chosen based on their spatial tuning curves. Focused stimulation will be applied to electrodes with good temporal processing acuity.

Sponsors & Collaborators

  • East Carolina University

    lead OTHER

Eligibility

Min Age
15 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-10-01
Primary Completion
2023-04-04
Completion
2023-04-04

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03867058 on ClinicalTrials.gov