Effects of Stimulus Validity on Speech Recognition

This study has been completed.

First Received: March 14, 2001 Last Updated: January 20, 2009 History of Changes

Sponsored by:	Department of Veterans Affairs
Information provided by:	Department of Veterans Affairs
ClinicalTrials.gov Identifier:	NCT00013364

Purpose

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.

Condition	Intervention	Phase
Hearing Impaired	Behavioral: Talker variability	Phase II

Study Type:	Observational
Study Design:	Prospective
Official Title:	Effects of Stimulus Validity on Speech Recognition

Resource links provided by NLM:

Genetics Home Reference related topics: nonsyndromic deafness

MedlinePlus related topics: Hearing Disorders and Deafness

U.S. FDA Resources

Further study details as provided by Department of Veterans Affairs:

Estimated Enrollment:	80
Study Start Date:	April 1998
Study Completion Date:	March 2001

Eligibility

Ages Eligible for Study:	18 Years to 85 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Hearing impaired

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00013364

Locations

United States, California
VAMC, West Los Angeles
Los Angeles, California, United States

Sponsors and Collaborators

Department of Veterans Affairs

Investigators

Investigator:	John Fryer, Ph.D., Program Analyst	Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service
Investigator:	Nancy Roceleau, Program Analyst	Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service

More Information

No publications provided

Study ID Numbers:	C1850R
Study First Received:	March 14, 2001
Last Updated:	January 20, 2009
ClinicalTrials.gov Identifier:	NCT00013364 History of Changes
Health Authority:	United States: Federal Government

Keywords provided by Department of Veterans Affairs:

Hearing loss, speech recognition

Study placed in the following topic categories:

Signs and Symptoms
Sensation Disorders
Hearing Disorders
Deafness

Otorhinolaryngologic Diseases
Neurologic Manifestations
Hearing Loss
Ear Diseases

Additional relevant MeSH terms:

Signs and Symptoms
Sensation Disorders
Hearing Disorders
Deafness
Otorhinolaryngologic Diseases

Nervous System Diseases
Neurologic Manifestations
Hearing Loss
Ear Diseases

ClinicalTrials.gov processed this record on July 02, 2009