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Quantifying Auditory Perceptual Learning Following Hearing Aid Fitting

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00013455
First Posted: March 16, 2001
Last Update Posted: January 21, 2009
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
VA Office of Research and Development
  Purpose
The purpose of this study is to examine and relate physiological, behavioral, and self-perceived changes after a period of hearing aid use and as a function of auditory training. The project will focus on the following questions: 1)Is experience-related behavioral change in hearing aid performance reflected as a neurophysiologic change? 2)Does a neurophysiologic change occur prior to or in conjunction with an experience-related behavioral change? 3) Does behavioral training modify the neurophysiologic representation of speech following the provision of hearing aids? 4)What is the relationship between physiologic, behavioral,and self-perceived change impacted by behavioral training? 5)Are neurophysiologic changes limited to trained stimuli or does auditory training alter neurophysiological responses?

Condition Intervention Phase
Hearing Loss Device: Hearing Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Quantifying Auditory Perceptual Learning Following Hearing Aid Fitting

Resource links provided by NLM:


Further study details as provided by VA Office of Research and Development:

Estimated Enrollment: 48
Study Start Date: August 2000
Study Completion Date: August 2003
Detailed Description:
The purpose of this study is to examine and relate physiological, behavioral, and self-perceived changes after a period of hearing aid use and as a function of auditory training. The primary objective of this study is to determine how physiological changes may be related to functional changes. The design of this experiment also will allow for evaluation of training effects, in particular, whether training enhances physiological change and further whether specific training transfers functionally and physiologically to similar stimuli. The proposed project will focus on the following questions: 1) Is an experience-related behavioral change in hearing aid performance over time reflected as a neurophysiologic change in the central auditory system? 2) Does a neurophysiologic change occur prior to or in conjunction with an experience-related behavioral change in hearing aid performance over time? 3) Does behavioral training over an extended period of time modify the neurophysiologic representation of speech following the provision of hearing aids? 4) What is the relationship between physiologic, behavioral, and self-perceived change over time and is this relationship impacted by behavioral training? 5) Are neurophysiologic changes in acoustic representations at a pre-attentive level limited to trained stimuli or does auditory training following the provision of hearing aids alter neurophysiological responses to novel speech sounds with acoustic content similar to the trained stimuli? Forty-eight hearing-impaired adults between the ages of 18 and 60 with no hearing aid experience will serve as subjects. Subjects will be randomly assigned to one of two experimental groups: a. individuals who receive auditory exposure in the real-world only; b. individuals who receive intense, controlled auditory practice with feedback, in addition to auditory exposure in the real world. Dependent variables will include measures of behavioral function (frequency specific speech recognition and confidence in different levels of noise), physiological function (amplitude and latency of mismatch negativity), and self-perception (Abbreviated Profile of Hearing Aid Benefit) over time. Data will be analyzed to evaluate relative change over time for each dependent variable and also to examine the relationship between the dependent variables considering hours of hearing aid use and audibility as potential covariates.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria
Hearing impaired adults
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00013455


Locations
United States, Pennsylvania
VAMC, Pittsburgh
Pittsburgh, Pennsylvania, United States
Sponsors and Collaborators
VA Office of Research and Development
Investigators
OverallOfficial: David Wolff, Ph.D., Special Assistant to the Director, Ph.D. Department of Veterans Affairs, Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service
  More Information

ClinicalTrials.gov Identifier: NCT00013455     History of Changes
Other Study ID Numbers: C2236R
First Submitted: March 14, 2001
First Posted: March 16, 2001
Last Update Posted: January 21, 2009
Last Verified: May 2002

Keywords provided by VA Office of Research and Development:
Hearing aid, hearing impaired

Additional relevant MeSH terms:
Hearing Loss
Hearing Disorders
Ear Diseases
Otorhinolaryngologic Diseases
Sensation Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms