Perception of Intonation by Bimodal and Bilateral Cochlear Implant Users
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Inscription (Anticipé)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Haifa, Israël
- Recrutement
- Bnzi Zion Medical Center
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Chercheur principal:
- Michal Luntz, MD
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Contact:
- Talma Shpak, PhD
- Numéro de téléphone: 97248359544
- E-mail: talma.shpak@b-zion.org.il
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Sous-enquêteur:
- Noam Yehudai, MD
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Sous-enquêteur:
- Talma Shpak, PhD
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Bilateral cochlear implant users
- Bilateral-bimodal users who use hearing aids for at least 75% of their waking hours.
Exclusion Criteria:
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Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Répartition: Non randomisé
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Comparateur actif: Bilateral Cochlear implant users
The perception of intonation will be assessed through the use of 2 tests.
In the first test, listeners will have to identify statements and yes/no questions that will be presented by male and female talkers in the background of four- talkers-babble noise comprised of two females and two males.
In the second test, listeners will be presented with gradual changes in the fundamental frequency of a sentence.
They will be required to identify the sentence with each of the changes as a statement or a question.
Each of the 2 tests will be presented in three listening conditions: each of the CI alone and bilateral (CI/CI) conditions.
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The amount of change in the fundamental frequency that was required in order to identify a question
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Comparateur actif: Bimodal Cochlear implant users
The perception of intonation will be assessed through the use of 2 tests.
In the first test, listeners will have to identify statements and yes/no questions that will be presented by male and female talkers in the background of four- talkers-babble noise comprised of two females and two males.
In the second test, listeners will be presented with gradual changes in the fundamental frequency of a sentence.
They will be required to identify the sentence with each of the changes as a statement or a question.
Each of the 2 tests will be presented in three listening conditions: CI alone, HA alone and bimodal (CI/HA) conditions.
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The amount of change in the fundamental frequency that was required in order to identify a question
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
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The amount of change in the fundamental frequency that was required in order to identify a question
Délai: 12 months
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12 months
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Michal Luntz, MD, Bnai Zion Medical Center
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- BZ0085
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