Perception of Intonation by Bimodal and Bilateral Cochlear Implant Users
調査の概要
詳細な説明
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.
研究の種類
入学 (予想される)
段階
- 適用できない
連絡先と場所
研究場所
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-
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Haifa、イスラエル
- 募集
- Bnzi Zion Medical Center
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主任研究者：
- Michal Luntz, MD
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コンタクト：
- Talma Shpak, PhD
- 電話番号：97248359544
- メール：talma.shpak@b-zion.org.il
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副調査官：
- Noam Yehudai, MD
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副調査官：
- Talma Shpak, PhD
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-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Bilateral cochlear implant users
- Bilateral-bimodal users who use hearing aids for at least 75% of their waking hours.
Exclusion Criteria:
-
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 割り当て：非ランダム化
- 介入モデル：単一グループの割り当て
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ：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
|
|
アクティブコンパレータ：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.
|
The amount of change in the fundamental frequency that was required in order to identify a question
|
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
The amount of change in the fundamental frequency that was required in order to identify a question
時間枠：12 months
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12 months
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協力者と研究者
スポンサー
捜査官
- 主任研究者：Michal Luntz, MD、Bnai Zion Medical Center
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。