Cutile Air and Bone Conduction Thresholds of the Deaf

1970 ◽  
Vol 36 (8) ◽  
pp. 571-579 ◽  
Author(s):  
E. Harris Nober
Keyword(s):  
High Intensity ◽  
Subcutaneous Injection ◽  
Bone Conduction ◽  
Low Frequency ◽  
Normal Hearing ◽  
Auditory Sensitivity ◽  
Deaf Children ◽  
Residual Hearing ◽  
Tactile Receptors

This article reports an exploration of whether low frequency air and bone thresholds elicited at high intensity levels from deaf children reflect valid auditory sensitivity or are mediated through cutaneous-tactile receptors. Twenty-one subjects comprised of 5 “priority deaf” subjects (totally deaf), 6 “control deaf” subjects (residual hearing) and 10 “normal” hearing were given a local subcutaneous injection of 2 percent xylocaine to eliminate local cutaneous-tactile interference. Results indicated the air thresholds extinguished during the anesthetic block only for priority deaf subjects with “cutile” (cutaneous-tactile) thresholds and not for the control deaf with residual hearing or for the normal hearing group. It was concluded that air and bone thresholds of many profoundly deaf children are not auditory but are mediated through cutaneous-tactile receptors.

Low Frequency Bone Conduction Response in Deaf Children

1972 ◽  
Vol 81 (3) ◽  
pp. 429-432
Author(s):  
Vijay S. Dayal ◽  
George Wortzman ◽  
Cynthia F. Hands
Keyword(s):  
Bone Conduction ◽  
Low Frequency ◽  
Deaf Children

Impact of Electric Stimulation on Residual Hearing

2015 ◽  
Vol 26 (08) ◽  
pp. 732-740 ◽  
Author(s):  
Margaret T. Dillon ◽  
Andrea L. Bucker ◽  
Marcia C. Adunka ◽  
English R. King ◽  
Oliver F. Adunka ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Electric Stimulation ◽  
Bone Conduction ◽  
Low Frequency ◽  
Electrode Array ◽  
Hearing Preservation ◽  
Acoustic Stimulation ◽  
First Year ◽  
Residual Hearing ◽  
Listening Experience

Background: Candidacy criteria for cochlear implantation are expanding to include patients with substantial low-to-mid frequency hearing sensitivity. Postoperative hearing preservation has been achieved in cochlear implant recipients, though with variable outcomes. Previous investigations on postoperative hearing preservation outcomes have evaluated intraoperative procedures. There has been limited review as to whether electric stimulation influences hearing preservation. Purpose: The purpose of this analysis was to evaluate whether charge levels associated with electric stimulation influence postoperative hearing preservation within the first year of listening experience. Research Design: Retrospective analysis of unaided residual hearing and charge levels. Study Sample: Twenty-eight cochlear implant recipients with postoperative residual hearing in the operative ear and at least 12 mo of listening experience with electric-acoustic stimulation (EAS). Data Collection and Analysis: Assessment intervals included initial cochlear implant activation, initial EAS activation, and 3-, 6-, and 12-mo postinitial EAS activation. A masked low-frequency bone-conduction (BC) pure-tone average (PTA) was calculated for all participants at each assessment interval. Charge levels for each electrode were determined using the most comfortable loudness level and pulse width values. Charge levels associated with different regions of the electrode array were compared to the change in the low-frequency BC PTA between two consecutive intervals. Results: Charge levels had little to no association with the postoperative change in low-frequency BC PTA within the first year of listening experience. Conclusions: Electric charge levels do not appear to be reliably related to the subsequent loss of residual low-frequency hearing in the implanted ear within the first year of EAS listening experience.

Evaluation of Special Hearing Aids for Deaf Children

1971 ◽  
Vol 36 (4) ◽  
pp. 527-537 ◽  
Author(s):  
Norman P. Erber
Keyword(s):  
Hearing Aids ◽  
High Frequency ◽  
Hearing Aid ◽  
Low Frequency ◽  
Acoustic Stimulation ◽  
Deaf Children ◽  
Frequency Range ◽  
Frequency Limit ◽  
Unpublished Studies ◽  
Published Research

Two types of special hearing aid have been developed recently to improve the reception of speech by profoundly deaf children. In a different way, each special system provides greater low-frequency acoustic stimulation to deaf ears than does a conventional hearing aid. One of the devices extends the low-frequency limit of amplification; the other shifts high-frequency energy to a lower frequency range. In general, previous evaluations of these special hearing aids have obtained inconsistent or inconclusive results. This paper reviews most of the published research on the use of special hearing aids by deaf children, summarizes several unpublished studies, and suggests a set of guidelines for future evaluations of special and conventional amplification systems.

The Occlusion Effect in Unilateral Functional Hearing Loss

1970 ◽  
Vol 13 (1) ◽  
pp. 37-40
Author(s):  
Gary Thompson ◽  
Marie Denman
Keyword(s):  
Hearing Loss ◽  
Bone Conduction ◽  
Low Frequency ◽  
Clinical Implications ◽  
The Right ◽  
Occlusion Effect

Bone-conduction tests were administered to subjects who feigned a hearing loss in the right ear. The tests were conducted under two conditions: With and without occlusion of the non-test ear. It was anticipated that the occlusion effect, a well-known audiological principle, would operate to draw low frequency bone-conducted signals to the occluded side in a predictable manner. Results supported this expectation and are discussed in terms of their clinical implications.

Body Sensation of Low Frequency Noise of Ordinary Persons and Profoundly Deaf Persons

1983 ◽  
Vol 2 (3) ◽  
pp. 32-36 ◽  
Author(s):  
S. Yamada ◽  
M. Ikuji ◽  
S. Fujikata ◽  
T. Watanabe ◽  
T. Kosaka
Keyword(s):  
Low Frequency ◽  
Semicircular Canals ◽  
Normal Hearing ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Body Sensation ◽  
Deaf Persons

Comparison of the thresholds of body sensation of profoundly deaf subjects and those of normal hearing, when exposed to intense low frequency noise, showed similar trends. Since the deaf subjects were judged to have normal balance mechanisms, it was concluded that the semicircular canals are not sensitive to low frequency noise at its normal levels in the environment.

scholarly journals Rapid learning of minimally different words in five- to six-year-old children: effects of acoustic salience and hearing impairment

2015 ◽  
Vol 43 (2) ◽  
pp. 310-337 ◽  
Author(s):  
MARCEL R. GIEZEN ◽  
PAOLA ESCUDERO ◽  
ANNE E. BAKER
Keyword(s):  
Cochlear Implant ◽  
Hearing Impairment ◽  
Normal Hearing ◽  
Task Demands ◽  
Deaf Children ◽  
Matching Task ◽  
Object Matching ◽  
Rapid Learning ◽  
Minimal Pairs

AbstractThis study investigates the role of acoustic salience and hearing impairment in learning phonologically minimal pairs. Picture-matching and object-matching tasks were used to investigate the learning of consonant and vowel minimal pairs in five- to six-year-old deaf children with a cochlear implant (CI), and children of the same age with normal hearing (NH). In both tasks, the CI children showed clear difficulties with learning minimal pairs. The NH children also showed some difficulties, however, particularly in the picture-matching task. Vowel minimal pairs were learned more successfully than consonant minimal pairs, particularly in the object-matching task. These results suggest that the ability to encode phonetic detail in novel words is not fully developed at age six and is affected by task demands and acoustic salience. CI children experience persistent difficulties with accurately mapping sound contrasts to novel meanings, but seem to benefit from the relative acoustic salience of vowel sounds.

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