Our approach to speech perception for the individuals with hearing loss is guided by our conception of the process of speech perception, the deficiencies that arise from hearing impairment, and the essential ingredients of speech-perception training.
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Learning Outcomes: As a result of this activity, the participant will be able to (1) distinguish two fundamental goals of speech-perception training, the development of rapid and accurate identification of syllable constituents (onsets, nuclei and, codas), of which connected speech is composed, and the development of skills in the use of context to recognize those elements in words and sentences (2) describe the variety of measures that are required to confirm the success of a speech-perception training program for hearing aid users. The two types of training are described in detail, together with a summary of other perceptual and cognitive measures obtained from all participants. The training continues over 15 to 20 visits, with subjects completing at least 30 hours of focused training with one of the two methods. Subjects listen in a sound field while wearing their hearing aids at their usual settings. The training for both groups is preceded and followed by a series of speech-perception tests. Two groups of listeners are trained, each using one of these types of training, performed in a laboratory setting. In a second type of training, participants listen to 6- to 7-minute narratives in noise and are asked several questions about each narrative.
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One training method focuses on the identification of 109 syllable constituents (45 onsets, 28 nuclei, and 36 codas) in quiet and in noise, and on the perception of words in sentences presented in various levels of noise. Following an overview of theoretical issues in speech-perception training and of previous efforts to enhance hearing aid use through training, a multisite study, designed to evaluate the efficacy of two types of computerized speech-perception training for adults who use hearing aids, is described.