Auditory Prosthesis

2015 ◽  
pp. 274-278
Author(s):  
Johan H. M. Frijns ◽  
Jeroen J. Briaire
Keyword(s):  
Auditory Prosthesis

Impaired Hearing: Auditory Prosthesis

2009 ◽  
pp. 3021-3046 ◽  
Author(s):  
J. K. Niparko ◽  
A. Marlowe ◽  
H. W. Francis
Keyword(s):  
Impaired Hearing ◽  
Auditory Prosthesis

Hearing Performance with the Auditory Prosthesis

1977 ◽  
Vol 86 (3_suppl) ◽  
pp. 76-76 ◽  
Author(s):  
R. C. Bilger ◽  
N. T. Hopkinson
Keyword(s):  
The Other ◽  
Auditory Prosthesis ◽  
Environmental Sounds ◽  
Acoustic Environment ◽  
Other Hand

With their prostheses activated 12 of 13 subjects were able to respond to sound (bands of noise) at intensities (35–65 dB SPL) that typically arise in the normal acoustic environment. While this “hearing” did allow them to be aware of speech, it did not permit them to understand speech. On the other hand, this “hearing” does seem to help them with identification of common environmental sounds and with lipreading, within the context that those abilities were tested here.

scholarly journals Effects of hearing aids in the balance, quality of life and fear to fall in elderly people with sensorineural hearing loss

2012 ◽  
Vol 16 (02) ◽  
pp. 156-162 ◽  
Author(s):  
Clara Lacerda ◽  
Luciana Silva ◽  
Roberto de Tavares Canto ◽  
Nadia Cheik
Keyword(s):  
Quality Of Life ◽  
Hearing Aids ◽  
Short Form ◽  
Berg Balance Scale ◽  
Auditory Prosthesis ◽  
Structural Modifications ◽  
Central Processing ◽  
Long Run ◽  
Sf 36

Summary Introduction: The aging process provokes structural modifications and functional to it greets, compromising the postural control and central processing. Studies have boarded the necessity to identify to the harmful factors of risk to aged the auditory health and security in stricken aged by auditory deficits and with alterations of balance. Objective: To evaluate the effect of auditory prosthesis in the quality of life, the balance and the fear of fall in aged with bilateral auditory loss. Method: Carried through clinical and experimental study with 56 aged ones with sensorineural auditory loss, submitted to the use of auditory prosthesis of individual sonorous amplification (AASI). The aged ones had answered to the questionnaires of quality of life Short Form Health Survey (SF-36), Falls Efficacy International Scale- (FES-I) and the test of Berg Balance Scale (BBS). After 4 months, the aged ones that they adapted to the use of the AASI had been reevaluated. Results: It had 50% of adaptation of the aged ones to the AASI. It was observed that the masculine sex had greater difficulty in adapting to the auditory device and that the variable age, degree of loss, presence of humming and vertigo had not intervened with the adaptation to auditory prosthesis. It had improvement of the quality of life in the dominance of the State General Health (EGS) and Functional Capacity (CF) and of the humming, as well as the increase of the auto-confidence after adaptation of auditory prosthesis. Conclusion: The use of auditory prosthesis provided the improvement of the domains of the quality of life, what it reflected consequently in one better auto-confidence and in the long run in the reduction of the fear of fall in aged with sensorineural auditory loss.

scholarly journals Expectation as a factor of influence on the success of use of hearing aids in elderly individuals

2012 ◽  
Vol 16 (02) ◽  
pp. 201-208 ◽  
Author(s):  
Maristela Costa ◽  
Isabela Menegotto ◽  
Larissa Schuster
Keyword(s):  
Hearing Aids ◽  
The Elderly ◽  
Negative Influence ◽  
Auditory Prosthesis ◽  
Participation Restriction ◽  
Adult Individual ◽  
Hearing Handicap ◽  
Before And After ◽  
Level Of Significance ◽  
Factor Of Influence

Summary Introduction: Auditory prosthesis is distinguished in function of the lesser technologies that become them each time, more powerful and efficient. The marketing can generate unreal expectations how much to the results with the amplification use, mainly in inexperienced individuals. Objective: To verify the relation between expectations and success of the process of election and adaptation of auditory prosthesis in aged. Method: Clinical and experimental study, 16 aged, inexperienced individuals with the amplification use, the election and adaptation of auditory prosthesis had been evaluated 15 days before and after. Questionnaire for evaluation of the expectations of aged the adult individual was used “/, new user of auditory prosthesis”, Hearing Handicap Inventory will be the Elderly/Screening Version, for evaluation of the perception of the restriction of participation and the International Questionnaire - Device of Amplification Sonora Individual (QI-AASI), to verify the subjective benefit with the use of the auditory prosthesis. The Percentile Index of Recognition of Sentences in Silence was determined (IPRSS), by means of the test Lists of Sentences in Portuguese to verify the objective benefit of the adaptation. The data had been analyzed by means of not-parametric test, with level of significance of 5%. Results: The entire sample presented positive expectations. Subjectively benefit for the reduction of the perception of the participation restriction and for the positive evaluation of the adaptation, evidenced for the QI-AASI was verified. Objective the improvement of the IPRSS with the use of auditory prosthesis also evidenced benefits. Conclusion: The expectation how much to the results with the amplification use, it was factor of negative influence in the success of the process of election and adaptation of auditory prosthesis, in the subjective scope.

scholarly journals Primary auditory cortical responses to electrical stimulation of the thalamus

2014 ◽  
Vol 111 (5) ◽  
pp. 1077-1087 ◽  
Author(s):  
Craig A. Atencio ◽  
Jonathan Y. Shih ◽  
Christoph E. Schreiner ◽  
Steven W. Cheung
Keyword(s):  
Electrical Stimulation ◽  
Electrical Current ◽  
Neurofibromatosis Type ◽  
Cortical Activation ◽  
Auditory Prosthesis ◽  
Thalamic Stimulation ◽  
Cortical Responses ◽  
Neurofibromatosis Type Ii ◽  
Pure Tones ◽  
Stimulation Of

Cochlear implant electrical stimulation of the auditory system to rehabilitate deafness has been remarkably successful. Its deployment requires both an intact auditory nerve and a suitably patent cochlear lumen. When disease renders prerequisite conditions impassable, such as in neurofibromatosis type II and cochlear obliterans, alternative treatment targets are considered. Electrical stimulation of the cochlear nucleus and midbrain in humans has delivered encouraging clinical outcomes, buttressing the promise of central auditory prostheses to mitigate deafness in those who are not candidates for cochlear implantation. In this study we explored another possible implant target: the auditory thalamus. In anesthetized cats, we first presented pure tones to determine frequency preferences of thalamic and cortical sites. We then electrically stimulated tonotopically organized thalamic sites while recording from primary auditory cortical sites using a multichannel recording probe. Cathode-leading biphasic thalamic stimulation thresholds that evoked cortical responses were much lower than published accounts of cochlear and midbrain stimulation. Cortical activation dynamic ranges were similar to those reported for cochlear stimulation, but they were narrower than those found through midbrain stimulation. Our results imply that thalamic stimulation can activate auditory cortex at low electrical current levels and suggest an auditory thalamic implant may be a viable central auditory prosthesis.

scholarly journals Tubular manipulators: a new concept for intracochlear positioning of an auditory prosthesis

2015 ◽  
Vol 1 (1) ◽  
pp. 515-518 ◽  
Author(s):  
Thomas S. Rau ◽  
Josephine Granna ◽  
Thomas Lenarz ◽  
Omid Majdani ◽  
Jessica Burgner-Kahrs
Keyword(s):  
Inner Ear ◽  
Preliminary Investigation ◽  
Electrode Array ◽  
Maximum Error ◽  
Patient Specific ◽  
Final Position ◽  
Auditory Prosthesis ◽  
Scala Tympani ◽  
Potential Applicability ◽  
Torsion Stiffness

AbstractThe aim of this study was to investigate the applicability of tubular manipulators as an actuator mechanism for intracochlear positioning of the electrode array (EA) of a cochlear implant (CI). This is motivated by the vision of an atraumatic insertion of the EA into the inner ear (cochlea) without any damage to the intracochlear structures in combination with a well-defined final position. To realize this, an actuator mechanism is required which allows consideration of the patient-specific anatomy. We propose a tubular manipulator for this task. It consists of three concentric tubes: A straight outer tube serves as a guiding sleeve to enter the inner ear (cochlea) and two additional telescoping, superelastic, helically precurved tubes. By selecting helical tube parameters of both tubes prior insertion, a patient-specific curling behaviour of the tubular manipulator can be achieved. For preliminary investigation, segmentation and skeletonization of 5 human scala tympani were performed to determine their centrelines. These centrelines were considered as individual ideal insertion paths. An optimization algorithm was developed to identify suitable tube set parameters (curvature, diameter, length, torsion, stiffness) as well as configuration parameters (translation and rotation of the 2 inner tubes). Different error values describing the deviation of the shape of the tubes with respect to the insertion path were used to quantify the optimization results. In all cases tube set parameters for a final position within the cochlea were found, while keeping the maximum error below 1mm. These preliminary results are promising in terms of the potential applicability of tubular manipulators for positioning auditory prosthesis inside the scala tympani of the inner ear.

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