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Speech Perception Performance With Gap-interleaved Stimulation Paradigms

NCT03937388 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 8

Last updated 2019-09-26

No results posted yet for this study

Summary

Cochlear implants (CI) are used to help patients with severe to profound hearing loss regain auditory perception by electrical stimulation of the auditory nerve. The electrical stimulation consists of trains of charge balanced, biphasic current pulses. For each patient, individual stimulation parameters (perception threshold, most comfortable level - MCL) are determined for each electrode during fitting sessions. However, an important parameter, pulse duration, cannot be individualized for each electrode. There are certain circumstances where it would be advantageous to have the possibility of introducing variable pulse durations into the fitting strategy (e.g., optimization of energy consumption, development of combined cochleo-vestibular implants). However, since in current CI systems pulses are transmitted sequentially, introducing varying pulse widths would also introduce "gaps" (zero-stimulation periods) into the stimulation profile. The influence of such auditory gaps on speech recognition and on the quality of hearing has not been explored yet, but can be investigated in current CI users. The objective of this study is to investigate the impact of time-fixed gaps (zero-stimulation periods) in the cochlear stimulation strategy on speech performance and hearing quality.

Conditions

Interventions

OTHER

Cochlear stimulation strategy including time-fixed gaps

Investigation of the impact of time-fixed gaps (zero-stimulation periods) in the cochlear stimulation strategy on speech performance and hearing quality.

Sponsors & Collaborators

  • University of Innsbruck / Department of Mechatronics

    collaborator UNKNOWN

  • Angelica Perez Fornos

    lead OTHER

Principal Investigators

  • Angelica Perez Fornos, PhD · University Hospital, Geneva

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-03-06
Primary Completion
2019-06-28
Completion
2019-06-30

Countries

  • Switzerland

Study Locations

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Entities

Diseases

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 NCT03937388 on ClinicalTrials.gov