Multisensory Speech Perception of Young Children With Profound Hearing Loss

1997 ◽  
Vol 40 (5) ◽  
pp. 1135-1150 ◽  
Author(s):  
Liat Kishon-Rabin ◽  
Nava Haras ◽  
Moe Bergman
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Young Children ◽  
Sensory Information ◽  
Final Position ◽  
Profound Hearing Loss ◽  
Closed Set ◽  
Percentage Points ◽  
Systematic Training ◽  
Tactile Modality

The contribution of a two-channel vibrotactile aid (Trill VTA 2/3, AVR Communications LTD) to the audiovisual perception of speech was evaluated in four young children with profound hearing loss using words and speech pattern contrasts. An intensive, hierarchical, and systematic training program was provided. The results show that the addition of the tactile (T) modality to the auditory and visual (A+V) modalities enhanced speech perception performance significantly on all tests. Specifically, at the end of the training sessions, the tactile supplementation increased word recognition scores in a 44-word, closed-set task by 12 percentage points; detection of consonant in final position by 50 percentage points; detection of sibilant in final position by 30 percentage points; and detection of voicing in final position by 25 percentage points. Significant learning over time was evident for all test materials, in all modalities. As expected, fastest learning (i.e., smallest time constants) was found for the AVT condition. The results of this study provide further evidence that sensory information provided by the tactile modality can enhance speech perception in young children.

The Effect of Conventional and Transparent Surgical Masks on Speech Understanding in Individuals with and without Hearing Loss

2017 ◽  
Vol 28 (01) ◽  
pp. 058-067 ◽  
Author(s):  
Samuel R. Atcherson ◽  
Lisa Lucks Mendel ◽  
Wesley J. Baltimore ◽  
Chhayakanta Patro ◽  
Sungmin Lee ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Hearing Impairment ◽  
Visual Input ◽  
Acoustic Properties ◽  
Speech Understanding ◽  
Profound Hearing Loss ◽  
Cross Sectional ◽  
Surgical Masks ◽  
Significant Difference

AbstractIt is generally well known that speech perception is often improved with integrated audiovisual input whether in quiet or in noise. In many health-care environments, however, conventional surgical masks block visual access to the mouth and obscure other potential facial cues. In addition, these environments can be noisy. Although these masks may not alter the acoustic properties, the presence of noise in addition to the lack of visual input can have a deleterious effect on speech understanding. A transparent (“see-through”) surgical mask may help to overcome this issue.To compare the effect of noise and various visual input conditions on speech understanding for listeners with normal hearing (NH) and hearing impairment using different surgical masks.Participants were assigned to one of three groups based on hearing sensitivity in this quasi-experimental, cross-sectional study.A total of 31 adults participated in this study: one talker, ten listeners with NH, ten listeners with moderate sensorineural hearing loss, and ten listeners with severe-to-profound hearing loss.Selected lists from the Connected Speech Test were digitally recorded with and without surgical masks and then presented to the listeners at 65 dB HL in five conditions against a background of four-talker babble (+10 dB SNR): without a mask (auditory only), without a mask (auditory and visual), with a transparent mask (auditory only), with a transparent mask (auditory and visual), and with a paper mask (auditory only).A significant difference was found in the spectral analyses of the speech stimuli with and without the masks; however, no more than ∼2 dB root mean square. Listeners with NH performed consistently well across all conditions. Both groups of listeners with hearing impairment benefitted from visual input from the transparent mask. The magnitude of improvement in speech perception in noise was greatest for the severe-to-profound group.Findings confirm improved speech perception performance in noise for listeners with hearing impairment when visual input is provided using a transparent surgical mask. Most importantly, the use of the transparent mask did not negatively affect speech perception performance in noise.

Effects of Three Amplification Strategies on Speech Perception by Children With Severe and Profound Hearing Loss

2005 ◽  
Vol 26 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Josephine E. Marriage ◽  
Brian C. J. Moore ◽  
Michael A. Stone ◽  
Thomas Baer
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Profound Hearing Loss

scholarly journals Recent Results with the MED-EL COMBI 40+ Cochlear Implant and TEMPO+ behind-the-ear Processor

2002 ◽  
Vol 81 (4) ◽  
pp. 229-233 ◽  
Author(s):  
Ilona Anderson ◽  
Viktor Weichbold ◽  
Patrick D'Haese
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Cochlear Implantation ◽  
Distinct Advantage ◽  
Profound Hearing Loss ◽  
Speech Processor ◽  
German Study ◽  
Viable Treatment

Cochlear implantation is a viable treatment for patients with severe to profound hearing loss. We report the results of speech perception tests (numbers, monosyllables, and sentence tests) achieved with MED-EL's COMBI 40+ (C40+) cochlear implant after 12 months of use. These findings, which were taken from a larger German study, were similar to those of other studies of the C40+ implant. We also compared the differences in speech perception observed with the CIS PRO+ body-worn speech processor and the newer TEMPO+ behind-the-ear speech processor. Although these results were similar with respect to most of the measured parameters, the TEMPO+ processor had a distinct advantage during tests in noise.

scholarly journals The Effects of Manufacturer’s Prefit and Real-Ear Fitting on the Predicted Speech Perception of Children with Severe to Profound Hearing Loss

2019 ◽  
Vol 30 (05) ◽  
pp. 346-356 ◽  
Author(s):  
Tian Kar Quar ◽  
Cila Umat ◽  
Yong Yee Chew
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Hearing Aids ◽  
Speech Intelligibility ◽  
Hearing Aid ◽  
High Input ◽  
Profound Hearing Loss ◽  
High Frequency Region ◽  
Cross Sectional ◽  
Significant Difference

AbstractThe use of probe microphone measures in hearing aid verification is often neglected or not fully used by practitioners. Some practitioners rely on simulated gain and output provided by manufacturer's fitting software to verify hearing aids.This study aims to evaluate the effectiveness of manufacturer’s prefit procedure in matching the prescribed real-ear targets. It also aims to study its correlated impact on the predicted speech perception in children with severe and profound hearing loss.This cross-sectional experiment was carried out by measuring the output of hearing aids based on prefit versus real-ear at low-, moderate-, and high-input levels. The predicted speech perception for different hearing aid fittings was determined based on the Speech Intelligibility Index (SII).Sixteen children (28 ears) aged between 4 and 7 yr, with severe to profound sensorineural hearing loss took part in the study.Two different types of hearing aids (Phonak and Unitron) were programmed based on their respective manufacturers’ Desired Sensation Levels (DSL) v5 Child procedure. The hearing aids were then verified using coupler-based measurements and individual real-ear-to-coupler differences. The prefit outputs were compared with the DSL v5 Child–prescribed outputs at low-, moderate-, and high-input levels. The hearing aids were then adjusted to closely match the prescribed output. The SIIs were calculated for the fittings before and after adjustment.Sixty four percent of fittings that were based on the prefit procedure achieved the optimal fit-to-targets, with less than 5-dB RMS deviations from the DSL v5 Child targets. After adjusting the hearing aids to attempt to meet the DSL v5 Child targets, 75% of the ears tested achieved the optimal fit-to-targets. On average, hearing aid outputs generated by the manufacturer’s prefit procedure had good and reasonable agreement with the DSL v5 Child–prescribed outputs at low- and mid-frequencies. Nonetheless, at 4000 Hz, the hearing aid output mostly fell below the DSL v5 Child–prescribed outputs. This was still the case even after the hearing aid was adjusted to attempt to match with the targets. At low input level, some prefit outputs were found to be higher than the prescribed outputs. The deviations of prefit outputs from the prescribed outputs were dependent on the type of hearing aid and input levels. There was no significant difference between the SII calculated for fittings based on the prefit and adjusted fit.Prefit procedure tends to produce outputs that were below the DSL v5 Child–prescribed outputs, with the largest mean difference at 4000 Hz. Even though the hearing aid gains were adjusted to attempt to match with the targets, the outputs were still below the targets. The limitations of hearing aids to match the DSL v5 Child targets at high-frequency region have resulted in no improvement in the children’s predicted speech perception.

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