Perception of Intonation by Bimodal & Bilateral Cochlear Implant Users

Status Recruiting

Clinical Trial Summary

The purpose of this study is to evaluate the benefit of bimodal hearing and bilateral cochlear implant hearing in comparison to unilateral cochlear implant hearing in the perception of speech intonation.

Clinical Trial Description

Bilateral hearing which is a fundamental characteristic of normal auditory system provides significant advantages in adverse listening conditions. In cochlear implant users, binaural hearing can be achieved via bilateral cochlear implant (CI/CI) or binaural-bimodal stimulation, i.e. a cochlear implant in one ear and a hearing aid in the other (CI/HA). It is assumed that CI/CI hearing and CI/HA hearing differ with respect to their physiological sources and functional benefit. Although both hearing prosthesis (CI/CI or CI/HA) lack several of the features needed to allow listeners to experience the full binaural advantage conferred by a normal-hearing auditory system it can, however, provide significant advantages over the use of a unilateral hearing prosthesis. Most of the accepted assessment clinical materials are not sensitive enough to evaluate the contribution of binaural hearing rehabilitation via CI/CI or CI/HA hearing for the perception of intonation. In a previous study the perception of intonation was evaluated in 29 adults CI/HA users via a closed-set format design with the same target talker. The results of the study showed small bimodal benefit. The test paradigm was apparently an easy task for the adult listeners and not sensitive enough to show the expected CI/HA bimodal benefit over cochlear implant alone.

The perception of correct intonation identification will be computed for each listener in each of the listening conditions. The amount of change in the fundamental frequency that was required in order to identify a question will be computed for each listener in each of the conditions. ANOVA with repeated measures will be used to assess the differences among the conditions for each group as well as the differences among the groups. ;

Study Design

Allocation: Non-Randomized, Intervention Model: Single Group Assignment, Masking: Open Label

Related Conditions & MeSH terms

Hearing Loss

Clinical Trial Details

NCT number	NCT02323932
Study type	Interventional
Source	Bnai Zion Medical Center
Contact	Michal Luntz, MD
Phone	97248359544
Email	michal.luntz@b-zion.org.il
Status	Recruiting
Phase	N/A
Start date	December 2014
Completion date	December 2015

View Details

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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.

Perception of Intonation by Bimodal and Bilateral Cochlear Implant Users

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms