Perception of Intonation by Bimodal and Bilateral Cochlear Implant Users

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02323932

Enrollment

Registered

2014-12-24

Start date

2014-12-31

Completion date

2015-12-31

Last updated

2014-12-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hearing Loss

Brief 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.

Detailed 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.

Interventions

BEHAVIORALPerception of correct intonation identification

The amount of change in the fundamental frequency that was required in order to identify a question

Study design

Allocation

NON_RANDOMIZED

Intervention model

SINGLE_GROUP

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Bilateral cochlear implant users * Bilateral-bimodal users who use hearing aids for at least 75% of their waking hours.

Exclusion criteria

Design outcomes

Primary

Measure	Time frame
The amount of change in the fundamental frequency that was required in order to identify a question	12 months

Countries

Israel

Contacts

Primary ContactMichal Luntz, MD

michal.luntz@b-zion.org.il97248359544

Backup ContactNoam Yehudai, MD

noam.yehudai@b-zion.org.il97248359544

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026