The purpose of this study was to replicate van Uden’s (1983) finding that watching oneself speak improves lipreading of visually confusable nonsense words. Specifically, this replication focused on an older group of subjects whose educational experience varied widely in the emphasis given to spoken communication. Four groups of 12 young-adult subjects who are deaf participated in evaluating two aspects of training: (a) source of video feedback (self or trainer), and (b) timing of feedback (during speech production or after speech production). Mean posttest results indicated significantly increased accuracy in identifying items that had been trained. The group that viewed self-speech after speech-production practice also demonstrated generalization to test items that were not trained. On the combined list of both trained and untrained items, both groups that viewed their own speech achieved significant gains compared to pretest scores, but those that viewed the trainer’s speech did not. Response time (RT) during pre- and posttesting was measured using a computer-generated waveform display to calculate the interval between stimulus offset and response onset. Results are reported for 13 subjects with ≥ 50% speech intelligibility for words in sentences. Although there were no differences attributable to training conditions, there was an overall increase in the regularity of the identification responses after training (measured by the standard deviation of RTs) and a generalization of the improvement to the untrained items. The results of this study substantiate the beneficial effects of multisensory feedback by practicing lipreading of one’s own speech production. This finding appears to apply even to young-adult subjects who are deaf and whose habituated speech patterns may be quite distinct from those of talkers with normal hearing.
When a second CI is not a consideration, a contralateral HA should be pursued as the standard of care for prelingually deaf adults despite substantial auditory deprivation in the previously unaided ear, unpleasant sensations at initial HA fit, or lack of dramatic objective test gains. Frequent audiologist contact, repeated HA adjustments, and client journals are valuable in promoting favorable outcomes with bimodal hearing (adaptation, acceptance, and benefit) for this population.
The variety of aided loudness growth patterns identified reflects the diversity known to characterize individuals with early-onset S/PHL. Loudness rating at the validation stage of HA fit with these listeners is likely to reveal nonnormal loudness, signaling need for further HA adjustment. High satisfaction, however, despite nonnormal loudness growth, suggests that listeners with poor auditory speech recognition may benefit more from aided loudness that supports pattern perception (via the time-intensity waveform of speech), different from most current-day prescription fits.
This paper is a descriptive study of the incidence of semi-intelligible or better speech among 108 NTID students with congenital hearing loss greater than 91 dB. Statistical comparisons between semi-intelligible (in spontaneous speech) speakers and unintelligible deaf speakers were made in the areas of academic achievement, parental and educational background, and oral-aural skills.
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