- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT05260307
Verbesserung der räumlichen Wahrnehmung und des Sprachverständnisses in Multitalker-Mischungen
The purpose of this study is to investigate several approaches for improving spatial perception and speech intelligibility in multitalker listening situations for hearing-aid users. The hypotheses are that spatial perception and speech intelligibility will be improved by (1) increased high-frequency audibility, (2) speech envelope enhancement, and/or (3) appropriate sound image externalization.
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
The purpose of this study is to investigate several approaches for improving spatial perception and speech intelligibility in multitalker listening situations for hearing-aid users. Aim 1 will investigate how well different amplification strategies provide access to the spectrotemporally sparse speech information that is available in multitalker mixtures. The hypothesis is that subtle differences in high-frequency audibility across different strategies may have much greater effects on the intelligibility of sparse speech than intact speech. This Aim will involve 40 subjects with hearing loss across 2 experiments. Aim 2 is an exploratory aim that will investigate the potential of a speech enhancement algorithm to improve spatial hearing in multitalker mixtures. The hypothesis is that speech enhancement, in addition to its established monaural benefits, will enhance the salience of interaural time differences and thus provide binaural benefits in multitalker mixtures. This Aim will involve 30 subjects with normal hearing and 60 subjects with hearing loss across 3 experiments. Aim 3 will investigate how different hearing-aid styles affect sound externalization. The hypothesis is that hearing aids can disrupt sound externalization, which in turn impacts speech intelligibility in multitalker mixtures. This Aim will involve 30 subjects with normal hearing and 60 subjects with hearing loss across 3 experiments.
This is a prospective design involving adult human subjects. While the investigators will recruit subjects with normal and impaired hearing, all subjects will be assigned to the same set of experimental conditions. Therefore, for the purposes of intervention (or prospective assignment), the subjects can be treated as a single group completing the same intervention (or set of interventions). The behavioral experiments involve listening to speech sounds (either unaided, with hearing aids, or with simulated hearing aids), and providing responses related to spatial perception or speech intelligibility. The order of experimental conditions will be randomized for each subject in order to control for order effects. All of the experimental tasks and outcome measures have been previously established, have good reliability and validity, and will be appropriate for informing future studies.
Studientyp
Einschreibung (Geschätzt)
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
- Name: Virginia A Best, PhD
- Telefonnummer: (617) 353-2622
- E-Mail: ginbest@bu.edu
Studieren Sie die Kontaktsicherung
- Name: Christine Mason
- Telefonnummer: cmason@bu.edu
- E-Mail: cmason@bu.edu
Studienorte
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Massachusetts
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Boston, Massachusetts, Vereinigte Staaten, 02215
- Rekrutierung
- Boston University
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Kontakt:
- Virginia Best
- Telefonnummer: 617-353-2622
- E-Mail: ginbest@bu.edu
-
Hauptermittler:
- Virginia A Best, PhD
-
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria: Normal-Hearing Subjects
- 18 to 35 years of age
- Audiometric thresholds that do not exceed 20 dB HL at any frequency from 250 to 8000 Hz
- Able to provide informed consent and understand experimental instructions
- Normal or corrected-to-normal vision
Inclusion Criteria: Hearing-Impaired Subjects
- 18 to 80 years of age
- Documented sensorineural hearing loss
- Able to provide informed consent and understand experimental instructions
- Normal or corrected-to-normal vision
Exclusion Criteria (some experiments)
- Non-native speakers of English
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Sonstiges: Experimental condition
Participants will be presented with sound stimuli under a number of experimental conditions that simulate different hearing-aid conditions. |
The intervention will be a hearing aid or a modification to the sound stimulus that simulates a hearing aid configuration, style, or processing strategy. |
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Speech intelligibility at baseline
Zeitfenster: Baseline
|
Speech intelligibility scores will be measured in a baseline condition (e.g. unaided) and in a number of hearing-aid conditions (post-intervention). Scale is in percent correct (0-100%). |
Baseline
|
|
Speech intelligibility post-intervention
Zeitfenster: Up to 4 hours
|
Speech intelligibility scores will be measured in a baseline condition (e.g. unaided) and in a number of hearing-aid conditions (post-intervention). Scale is in percent correct (0-100%). |
Up to 4 hours
|
|
Speech reception threshold at baseline
Zeitfenster: Baseline
|
Speech reception thresholds will be measured in a baseline condition (e.g. unaided) and in a number of hearing-aid conditions (post-intervention). Scale is in decibels (the level of the target speech relative to the masker speech needed to identify 50% of the words in a sentence). |
Baseline
|
|
Speech reception threshold post-intervention
Zeitfenster: Up to 4 hours
|
Speech reception thresholds will be measured in a baseline condition (e.g. unaided) and in a number of hearing-aid conditions (post-intervention). Scale is in decibels (the level of the target speech relative to the masker speech needed to identify 50% of the words in a sentence). |
Up to 4 hours
|
|
Interaural time difference discrimination at baseline
Zeitfenster: Baseline
|
Thresholds for the discrimination of interaural time differences in speech will be measured in a baseline condition (e.g. unaided) and in a number of hearing-aid conditions (post-intervention). Scale is in microseconds. |
Baseline
|
|
Interaural time difference discrimination post-intervention
Zeitfenster: Up to 4 hours
|
Thresholds for the discrimination of interaural time differences in speech will be measured in a baseline condition (e.g. unaided) and in a number of hearing-aid conditions (post-intervention). Scale is in microseconds. |
Up to 4 hours
|
|
Externalization rating at baseline
Zeitfenster: Baseline
|
Externalization judgments for speech will be measured in a baseline condition (e.g. unaided) and in a number of different hearing-aid conditions (post-intervention). Scale is in percent (0-100%). |
Baseline
|
|
Externalization rating post-intervention
Zeitfenster: Up to 4 hours
|
Externalization judgments for speech will be measured in a baseline condition (e.g. unaided) and in a number of different hearing-aid conditions (post-intervention). Scale is in percent (0-100%). |
Up to 4 hours
|
Mitarbeiter und Ermittler
Ermittler
- Hauptermittler: Virginia A Best, PhD, Boston University
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Neurologische Manifestationen
- Erkrankungen des Nervensystems
- Otorhinolaryngologische Erkrankungen
- Empfindungsstörungen
- Ohrenkrankheiten
- Hörstörungen
- Pathologische Zustände, Anzeichen und Symptome
- Verhalten
- Anzeichen und Symptome
- Kommunikation
- Verbales Verhalten
- Rede
- Schwerhörigkeit
- Sprachverständlichkeit
Andere Studien-ID-Nummern
- 4218E
- R01DC015760 (US NIH Stipendium/Vertrag)
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Beschreibung des IPD-Plans
Individual participant data that underlie results in a publication will be made publicly available.
IPD-Sharing-Zeitrahmen
The data will be made available at the time of the relevant publication.
Arzneimittel- und Geräteinformationen, Studienunterlagen
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