The influence of frequency-dependent hearing loss to unaided APHAB scores

2016 ◽  
Vol 273 (11) ◽  
pp. 3587-3593 ◽  
Author(s):  
J. Löhler ◽  
B. Akcicek ◽  
B. Wollenberg ◽  
T. Kappe ◽  
P. Schlattmann ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Frequency Dependent ◽  
Unaided Aphab

Loudness Growth under Masking: Relation to True Sensorineural Impairment

1973 ◽  
Vol 16 (4) ◽  
pp. 597-607 ◽  
Author(s):  
Alan M. Richards
Keyword(s):  
Hearing Loss ◽  
Power Function ◽  
Threshold Shift ◽  
Essential Difference ◽  
Frequency Dependent ◽  
Masker Level ◽  
Loudness Recruitment ◽  
The Family ◽  
Balance Functions ◽  
Loudness Growth

Alternate binaural loudness balances between masked and unmasked normal ears were performed to examine the growth of loudness as a function of masker level at each of several frequencies (500, 1000, 2000, and 4000 Hz) and to determine whether the recruitmentlike phenomenon in masked ears is comparable in its growth and form to actual recruitment growth in sensorineural impaired ears. The results for 28 subjects indicated that for all frequencies a power function relating the perceived loudness in the masked ear to the unmasked ear could be drawn, and that the slope of this function rose as a function of increased masking. The family of slopes for each frequency was linearly related to the induced threshold shift. The slope of this latter relation proved to be frequency dependent. Comparison between the slope growth in simulated hearing loss and the family of loudness-balance slopes obtained from patients with true unilateral loss of varying degree indicated that the slopes of loudness-balance functions in the latter group also increased linearly with increased loss. In this latter instance, however, the slope growth was not frequency dependent, thus pointing to an essential difference between simulated and actual loudness recruitment growth.

Evaluation of frequency-dependent hearing loss by words identification

2016 ◽  
Vol 139 (4) ◽  
pp. 1995-1995
Author(s):  
Jing Chen ◽  
Hongying Yang ◽  
Xihong Wu
Keyword(s):  
Hearing Loss ◽  
Frequency Dependent

scholarly journals Individual Aided Speech-Recognition Performance and Predictions of Benefit for Listeners With Impaired Hearing Employing FADE

2020 ◽  
Vol 24 ◽  
pp. 233121652093892
Author(s):  
Marc R. Schädler ◽  
David Hülsmeier ◽  
Anna Warzybok ◽  
Birger Kollmeier
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Automatic Speech Recognition ◽  
Recognition Performance ◽  
Recognition System ◽  
Speech Recognition System ◽  
Impaired Hearing ◽  
Automatic Speech Recognition System ◽  
Frequency Dependent ◽  
Hearing Thresholds

The benefit in speech-recognition performance due to the compensation of a hearing loss can vary between listeners, even if unaided performance and hearing thresholds are similar. To accurately predict the individual performance benefit due to a specific hearing device, a prediction model is proposed which takes into account hearing thresholds and a frequency-dependent suprathreshold component of impaired hearing. To test the model, the German matrix sentence test was performed in unaided and individually aided conditions in quiet and in noise by 18 listeners with different degrees of hearing loss. The outcomes were predicted by an individualized automatic speech-recognition system where the individualization parameter for the suprathreshold component of hearing loss was inferred from tone-in-noise detection thresholds. The suprathreshold component was implemented as a frequency-dependent multiplicative noise (mimicking level uncertainty) in the feature-extraction stage of the automatic speech-recognition system. Its inclusion improved the root-mean-square prediction error of individual speech-recognition thresholds (SRTs) from 6.3 dB to 4.2 dB and of individual benefits in SRT due to common compensation strategies from 5.1 dB to 3.4 dB. The outcome predictions are highly correlated with both the corresponding observed SRTs ( R2 = .94) and the benefits in SRT ( R2 = .89) and hence might help to better understand—and eventually mitigate—the perceptual consequences of as yet unexplained hearing problems, also discussed in the context of hidden hearing loss.

scholarly journals Associations between the probabilities of frequency-specific hearing loss and unaided APHAB scores

2016 ◽  
Vol 274 (3) ◽  
pp. 1345-1349 ◽  
Author(s):  
J. Löhler ◽  
B. Wollenberg ◽  
P. Schlattmann ◽  
N. Hoang ◽  
R. Schönweiler
Keyword(s):  
Hearing Loss ◽  
Unaided Aphab

Fluorocitrate Neural Dystrophy of the Guinea Pig Cochlea

1975 ◽  
Vol 33 ◽  
pp. 368-369
Author(s):  
G.J. Spector ◽  
C.D. Carr ◽  
I. Kaufman Arenberg ◽  
R.H. Maisel
Keyword(s):  
Hearing Loss ◽  
Hair Cells ◽  
Sodium Phosphate ◽  
Sensory Cells ◽  
Barium Salt ◽  
Perfusion Medium ◽  
Cochlear Hair Cells ◽  
Neural Degeneration ◽  
Sodium Phosphate Buffer ◽  
Cochlear Neurons

All studies on primary neural degeneration in the cochlea have evaluated the end stages of degeneration or the indiscriminate destruction of both sensory cells and cochlear neurons. We have developed a model which selectively simulates the dystrophic changes denoting cochlear neural degeneration while sparing the cochlear hair cells. Such a model can be used to define more precisely the mechanism of presbycusis or the hearing loss in aging man.Twenty-two pigmented guinea pigs (200-250 gm) were perfused by the perilymphatic route as live preparations using fluorocitrate in various concentrations (15-250 ug/cc) and at different incubation times (5-150 minutes). The barium salt of DL fluorocitrate, (C6H4O7F)2Ba3, was reacted with 1.0N sulfuric acid to precipitate the barium as a sulfate. The perfusion medium was prepared, just prior to use, as follows: sodium phosphate buffer 0.2M, pH 7.4 = 9cc; fluorocitrate = 15-200 mg/cc; and sucrose = 0.2M.

Teacher Identification of Elementary School Children with Hearing Loss

1978 ◽  
Vol 9 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Richard H. Nodar
Keyword(s):  
Elementary School ◽  
Hearing Loss ◽  
School Children ◽  
Elementary School Children ◽  
Total Sample ◽  
Hearing Impaired ◽  
Teacher Interviews ◽  
Teacher Screening ◽  
Children With Hearing Loss ◽  
Hearing Problems

The teachers of 2231 elementary school children were asked to identify those with known or suspected hearing problems. Following screening, the data were compared. Teachers identified 5% of the children as hearing-impaired, while screening identified only 3%. There was agreement between the two procedures on 1%. Subsequent to the teacher interviews, rescreening and tympanometry were conducted. These procedures indicated that teacher screening and tympanometry were in agreement on 2% of the total sample or 50% of the hearing-loss group. It was concluded that teachers could supplement audiometry, particularly when otoscopy and typanometry are not available.

A Clinical Study of Twenty-seven Children Exhibiting Functional Hearing Loss

1981 ◽  
Vol 12 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Donald L. McCanna ◽  
Giacinto DeLapa
Keyword(s):  
Hearing Loss ◽  
Clinical Study ◽  
Early Identification ◽  
Behavioral Responses ◽  
Upper Elementary ◽  
Elementary Grades ◽  
Ability Level ◽  
Hearing Problem

This report reviews 27 cases of children exhibiting functional hearing loss. The study reveals that most students were in the upper elementary grades and were predominantly females. These subjects were functioning below their ability level in school and were usually in conflict with school, home, or peers. Tests used were selected on the basis of their helping to provide early identification. The subjects' oral and behavioral responses are presented, as well as ways of resolving the hearing problem. Some helpful counseling techniques are also presented.

Dimensions of Multiskilling

1999 ◽  
Vol 30 (1) ◽  
pp. 4-10 ◽  
Author(s):  
Carole E. Johnson
Keyword(s):  
Hearing Loss ◽  
Service Delivery ◽  
Monitoring Program ◽  
School Age Children ◽  
School Age ◽  
Support Personnel ◽  
Educational Personnel ◽  
Educational Audiology ◽  
Children With Hearing Loss ◽  
Improve Service Delivery

Educational audiologists often must delegate certain tasks to other educational personnel who function as support personnel and need training in order to perform assigned tasks. Support personnel are people who, after appropriate training, perform tasks that are prescribed, directed, and supervised by a professional such as a certified and licensed audiologist. The training of support personnel to perform tasks that are typically performed by those in other disciplines is calledmultiskilling. This article discusses multiskilling and the use of support personnel in educational audiology in reference to the following principles: guidelines, models of multiskilling, components of successful multiskilling, and "dos and don’ts" for multiskilling. These principles are illustrated through the use of multiskilling in the establishment of a hearing aid monitoring program. Successful multiskilling and the use of support personnel by educational audiologists can improve service delivery to school-age children with hearing loss.

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