YEARS

2004-2009

AUTHORS

Robyn Masterton Cox

TITLE

Optimizing Hearing Aid Fitting for Older Adults

ABSTRACT

DESCRIPTION (provided by applicant): The goal of this research is to increase the effectiveness of hearing aids for older adults. Despite substantial improvements in hearing aid technology, the hearing aid take-up rate and the satisfaction with fitted hearing aids has not improved in the last decade. This is partly due to a failure by the research community to produce and disseminate updated fitting methods that facilitate the ability of practitioners to exploit insights derived from basic research. The two experiments in this proposal address this issue. These experiments will produce evidence-based recommendations about amplification needs that will assist clinicians to utilize new knowledge to capitalize on the potential of existing new technologies. The first experiment explores application of laboratory research on effectiveness of high frequency gain in real-world hearing aid fittings. Recent studies have suggested that, for some individuals with high frequency hearing loss, high frequency amplification is actually detrimental for speech understanding. There is a need to verify these observations in real world settings and to devise a practical method to validly identify patients for whom high-frequency gain is contraindicated. The study assesses the prevalence of such patients, and evaluates two new procedures that have been developed to prospectively select these individuals. The two procedures are used to identify experimental and control groups comprising 20 pairs of subjects. Each subject is fitted with a hearing aid that allows comparison of two amounts of high-frequency gain. Subjects undergo laboratory testing and a field trial to determine which high-frequency gain prescription is better. Results show the extent of the problem, and whether either of the two new procedures yields accurate prediction of optimal high-frequency gain. The second experiment explores the indications for bilateral (binaural) hearing aid fittings for older adults with bilateral hearing loss. Post-fit usage patterns and self-reports indicate that about 20-30% of bilaterally fitted individuals actually benefit more from one hearing aid than two. It is not clear why some patients prefer one hearing aid over two, or which patients will fall into this category. In this study, logistic regression is used to develop a model in which binaural summation, binaural integration, binaural interference, and attitudes towards hearing aids and hearing loss are combined to predict which individuals will ultimately benefit more from one hearing aid than two. For these individuals, resources presently allocated to hearing aid purchase would be used more effectively for alternate rehabilitation methods. Outcomes of 100 bilateral hearing aid fittings will be evaluated.

FUNDED PUBLICATIONS

  • Cochlear dead regions in typical hearing aid candidates: prevalence and implications for use of high-frequency speech cues.
  • Implications of high-frequency cochlear dead regions for fitting hearing aids to adults with mild to moderately severe hearing loss.
  • Development of the Device-Oriented Subjective Outcome (DOSO) scale.
  • Preference for one or two hearing AIDS among adult patients.
  • Development of APHAB norms for WDRC hearing aids and comparisons with original norms.
  • How to use: Click on a object to move its position. Double click to open its homepage. Right click to preview its contents.

    Download the RDF metadata as:   json-ld nt turtle xml License info


    24 TRIPLES      17 PREDICATES      25 URIs      9 LITERALS

    Subject Predicate Object
    1 grants:d301760e482cc4819fed5994295b190d sg:abstract DESCRIPTION (provided by applicant): The goal of this research is to increase the effectiveness of hearing aids for older adults. Despite substantial improvements in hearing aid technology, the hearing aid take-up rate and the satisfaction with fitted hearing aids has not improved in the last decade. This is partly due to a failure by the research community to produce and disseminate updated fitting methods that facilitate the ability of practitioners to exploit insights derived from basic research. The two experiments in this proposal address this issue. These experiments will produce evidence-based recommendations about amplification needs that will assist clinicians to utilize new knowledge to capitalize on the potential of existing new technologies. The first experiment explores application of laboratory research on effectiveness of high frequency gain in real-world hearing aid fittings. Recent studies have suggested that, for some individuals with high frequency hearing loss, high frequency amplification is actually detrimental for speech understanding. There is a need to verify these observations in real world settings and to devise a practical method to validly identify patients for whom high-frequency gain is contraindicated. The study assesses the prevalence of such patients, and evaluates two new procedures that have been developed to prospectively select these individuals. The two procedures are used to identify experimental and control groups comprising 20 pairs of subjects. Each subject is fitted with a hearing aid that allows comparison of two amounts of high-frequency gain. Subjects undergo laboratory testing and a field trial to determine which high-frequency gain prescription is better. Results show the extent of the problem, and whether either of the two new procedures yields accurate prediction of optimal high-frequency gain. The second experiment explores the indications for bilateral (binaural) hearing aid fittings for older adults with bilateral hearing loss. Post-fit usage patterns and self-reports indicate that about 20-30% of bilaterally fitted individuals actually benefit more from one hearing aid than two. It is not clear why some patients prefer one hearing aid over two, or which patients will fall into this category. In this study, logistic regression is used to develop a model in which binaural summation, binaural integration, binaural interference, and attitudes towards hearing aids and hearing loss are combined to predict which individuals will ultimately benefit more from one hearing aid than two. For these individuals, resources presently allocated to hearing aid purchase would be used more effectively for alternate rehabilitation methods. Outcomes of 100 bilateral hearing aid fittings will be evaluated.
    2 sg:endYear 2009
    3 sg:fundingAmount 997584.0
    4 sg:fundingCurrency USD
    5 sg:hasContribution contributions:2a6f196ac9e8d4ec87c4ba6d4198fcfc
    6 sg:hasFieldOfResearchCode anzsrc-for:11
    7 anzsrc-for:1103
    8 anzsrc-for:17
    9 anzsrc-for:1701
    10 sg:hasFundedPublication articles:08c216f9ef83ec0face3fb7760f83707
    11 articles:27e9c9175257d18ba0541004c1c54ae4
    12 articles:6cd6536fec7f1d00e27c2a23c840bf23
    13 articles:b21d4f03dcbbbd605bbad49990372a1b
    14 articles:cfa7d086bc2e3f0e5a5b134a8eda1445
    15 sg:hasFundingOrganization grid-institutes:grid.214431.1
    16 sg:hasRecipientOrganization grid-institutes:grid.56061.34
    17 sg:language English
    18 sg:license http://scigraph.springernature.com/explorer/license/
    19 sg:scigraphId d301760e482cc4819fed5994295b190d
    20 sg:startYear 2004
    21 sg:title Optimizing Hearing Aid Fitting for Older Adults
    22 sg:webpage http://projectreporter.nih.gov/project_info_description.cfm?aid=7173899
    23 rdf:type sg:Grant
    24 rdfs:label Grant: Optimizing Hearing Aid Fitting for Older Adults
    HOW TO GET THIS DATA PROGRAMMATICALLY:

    JSON-LD is a popular JSON format for linked data.

    curl -H 'Accept: application/ld+json' 'http://scigraph.springernature.com/things/grants/d301760e482cc4819fed5994295b190d'

    N-Triples is a line-based linked data format ideal for batch operations .

    curl -H 'Accept: application/n-triples' 'http://scigraph.springernature.com/things/grants/d301760e482cc4819fed5994295b190d'

    Turtle is a human-readable linked data format.

    curl -H 'Accept: text/turtle' 'http://scigraph.springernature.com/things/grants/d301760e482cc4819fed5994295b190d'

    RDF/XML is a standard XML format for linked data.

    curl -H 'Accept: application/rdf+xml' 'http://scigraph.springernature.com/things/grants/d301760e482cc4819fed5994295b190d'






    Preview window. Press ESC to close (or click here)


    ...