Effects of Stimulus Validity on Speech Recognition

NCT ID: NCT00013364

Last Updated: 2009-01-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

1998-04-30

Study Completion Date

2001-03-31

Brief Summary

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The effects of talker variability will be investigated with four groups of listeners (young normal-hearing; old normal-hearing; young hearing-impaired; old hearing-impaired). Experimental conditions will include between-talker differences, speaking rate, lexical difficult and semantic/linguistic context. A preliminary experiment will evaluate the relative merit of adaptive vs fixed-level methods of stimulus presentation.

Detailed Description

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Conditions

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Hearing Impaired

Study Design

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Study Time Perspective

PROSPECTIVE

Interventions

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Talker variability

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

Hearing impaired
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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US Department of Veterans Affairs

FED

Sponsor Role lead

Principal Investigators

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John Fryer, Ph.D., Program Analyst

Role:

Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service

Nancy Roceleau, Program Analyst

Role:

Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service

Locations

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VAMC, West Los Angeles

Los Angeles, California, United States

Site Status

Countries

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United States

Other Identifiers

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C1850R

Identifier Type: -

Identifier Source: org_study_id

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