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Evidence for the Use of Hearing Assistive Technology by Adults: The Role of the FM System

University of South Florida, Tampa, tchisolm{at}cas.usf.edu., Bay Pines VA Healthcare System, Bay Pines, Florida, tchisolm{at}cas.usf.edu.

Colleen M. Noe, PhD

James H. Quillen VA Medical Center, Mountain Home, Tennessee

Rachel McArdle, PhD

University of South Florida, Tampa, Bay Pines VA Healthcare System, Bay Pines, Florida

Harvey Abrams, PhD

University of South Florida, Tampa, Bay Pines VA Healthcare System, Bay Pines, Florida

Hearing assistive technologies include listening, alerting, and/or signaling devices that use auditory, visual, and/or tactile modalities to augment communication and/or facilitate awareness of environmental sounds. The importance of hearing assistive technologies in the management of adults with hearing loss was recently acknowledged in an evidence-based clinical practice guideline developed by the American Academy of Audiology. Most currently available evidence for hearing assistive technology use by adults focuses on frequency-modulated (FM) technology. Previous research is reviewed that demonstrates the efficacy of FM devices for adults in terms of laboratory measures of speech understanding in noise. Also reviewed are the outcomes from field trials of FM use by community-dwelling adults, which, to date, have been disappointing. Few to no individuals, in previous studies, elected to use FM devices at the end of the trial periods. Data are presented from a 1-group pretest-posttest study examining the role of extensive counseling, coaching, and instruction on FM use by adults. In addition, the potential influence of the cost of devices to the individual was eliminated by conducting the study with veterans who were eligible to receive FM systems through the Veterans Affairs National Hearing Aid Program. Positive outcomes were obtained at the end of a 6-week trial period and were found to remain 1 year after study completion. Implications for increasing the evidence base for the use of FM devices by adults are discussed.

Key Words: hearing assistive technology • FM • adults • hearing loss

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