Bimodal Devices and Bilateral Cochlear Implants: A Review
... typically occurs in the real world), there is always a more favorable signal-to-noise ratio (SNR) at one ear than at the other because of the head shadow effect and different sound distances to the ears. The head shadow effect is primarily seen in frequencies higher than 1500 Hz (e.g. Shaw, 1974), w ...
... typically occurs in the real world), there is always a more favorable signal-to-noise ratio (SNR) at one ear than at the other because of the head shadow effect and different sound distances to the ears. The head shadow effect is primarily seen in frequencies higher than 1500 Hz (e.g. Shaw, 1974), w ...
FOB may - Deruty, Emmanuel
... tory filters. We have adopted a computationally efficient method of calculating the excitation pattern, based on an initial spectral analysis using the FFT. To obtain spectral resolution at low frequencies comparable to that of the auditory system, the analysis of relatively long (about 64ms) segmen ...
... tory filters. We have adopted a computationally efficient method of calculating the excitation pattern, based on an initial spectral analysis using the FFT. To obtain spectral resolution at low frequencies comparable to that of the auditory system, the analysis of relatively long (about 64ms) segmen ...
Student manual
... 10.5.4 Effects of Wind and Temperature ............................................ 260 10.5.5 Miscellaneous Attenuation Effects (Amisc) ................................ 262 ...
... 10.5.4 Effects of Wind and Temperature ............................................ 260 10.5.5 Miscellaneous Attenuation Effects (Amisc) ................................ 262 ...
THE OUTCOMES OF BILATERAL COCHLEAR IMPLANTS IN ADULT RECIPIENTS TANIA SWART
... multiple-channel cochlear implant and speech processing strategy was the first to give profoundly deaf people the ability to understand open-set speech both with assistance from lip-reading and with electrical stimulation alone (Clark, 2003:23; Clark, 2006:791). Large scale clinical trials in the 19 ...
... multiple-channel cochlear implant and speech processing strategy was the first to give profoundly deaf people the ability to understand open-set speech both with assistance from lip-reading and with electrical stimulation alone (Clark, 2003:23; Clark, 2006:791). Large scale clinical trials in the 19 ...
Evaluation of Auditory Evoked Potentials as a Hearing aid Outcome
... CAEP-related projects were to evaluate the effect of speech stimulus source on CAEPs, non-linear hearing aid processing on tone-evoked CAEPs, and the effect of inter-stimulus intervals on non-linear hearing aid processing of phonemes. Results illustrated larger amplitude CAEPs with shorter latencies ...
... CAEP-related projects were to evaluate the effect of speech stimulus source on CAEPs, non-linear hearing aid processing on tone-evoked CAEPs, and the effect of inter-stimulus intervals on non-linear hearing aid processing of phonemes. Results illustrated larger amplitude CAEPs with shorter latencies ...
Threshold estimation in normal and impaired ears
... to be explored. The aim of this study was to determine the accuracy of monotic ASSR in estimating hearing thresholds in a group of 15 normal hearing subjects and 15 hearingimpaired subjects. A comparative research design was implemented. Indicating that results obtained in the study was compared to ...
... to be explored. The aim of this study was to determine the accuracy of monotic ASSR in estimating hearing thresholds in a group of 15 normal hearing subjects and 15 hearingimpaired subjects. A comparative research design was implemented. Indicating that results obtained in the study was compared to ...
The History of Cochlear Implants
... chapter will address the anatomy and physiology of the ear, types and degrees of hearing loss, and types of amplification systems. How cochlear implants work and an overview of the history of the various cochlear implant companies and their products will be examined in order to provide a basis of un ...
... chapter will address the anatomy and physiology of the ear, types and degrees of hearing loss, and types of amplification systems. How cochlear implants work and an overview of the history of the various cochlear implant companies and their products will be examined in order to provide a basis of un ...
Neural Coding of Interaural Time Differences with Bilateral Cochlear
... CIs (Smith and Delgutte, 2007, 2008; Hancock et al., 2010, 2013) have shown that although ITD sensitivity of inferior colliculus (IC) neurons in acutely deafened animals can be as good as in normal-hearing animals at low pulse rates, this sensitivity degrades at higher pulse rates, where most neuron ...
... CIs (Smith and Delgutte, 2007, 2008; Hancock et al., 2010, 2013) have shown that although ITD sensitivity of inferior colliculus (IC) neurons in acutely deafened animals can be as good as in normal-hearing animals at low pulse rates, this sensitivity degrades at higher pulse rates, where most neuron ...
experiments tone perception
... hand the perception of tones is considered to be governed by frequency analysis, on the other hand to be governed by periodicity analysis. In this study, Plomp has made an attempt to present a synthesis of these points of view in which the theories are treated as different aspects of one mechanism. ...
... hand the perception of tones is considered to be governed by frequency analysis, on the other hand to be governed by periodicity analysis. In this study, Plomp has made an attempt to present a synthesis of these points of view in which the theories are treated as different aspects of one mechanism. ...
Pathophysiology of Ménière`s Syndrome
... examination in the affected ear. The hydrops was idiopathic in 26 cases and considered secondary in 2 cases. All 26 cases with idiopathic hydrops showed dilatation of the cochlear duct and the saccule, and the majority (17 cases [65%]) also had hydrops involving the utricle and/or the ampullae. The ...
... examination in the affected ear. The hydrops was idiopathic in 26 cases and considered secondary in 2 cases. All 26 cases with idiopathic hydrops showed dilatation of the cochlear duct and the saccule, and the majority (17 cases [65%]) also had hydrops involving the utricle and/or the ampullae. The ...
ABSTRACT Title of Document:
... hearing aid may be set beyond the patient’s tolerable limits of loudness. The MarkeTrak surveys were consumer satisfaction surveys conducted in order to assess hearing aid satisfaction and underscore some major complaints of the average consumer. Results from several of these surveys revealed that ...
... hearing aid may be set beyond the patient’s tolerable limits of loudness. The MarkeTrak surveys were consumer satisfaction surveys conducted in order to assess hearing aid satisfaction and underscore some major complaints of the average consumer. Results from several of these surveys revealed that ...
Cochlear Implant - Blue Cross and Blue Shield of Louisiana
... In March 2014, FDA approved the Nucleus Hybrid L24 Cochlear Implant System (Cochlear Americas, Centennial, CO) through the premarket approval process. This system is a hybrid cochlear implant and hearing aid, with the hearing aid integrated into the external sound processor of the cochlear implant. ...
... In March 2014, FDA approved the Nucleus Hybrid L24 Cochlear Implant System (Cochlear Americas, Centennial, CO) through the premarket approval process. This system is a hybrid cochlear implant and hearing aid, with the hearing aid integrated into the external sound processor of the cochlear implant. ...
Full Text - International Advanced Otology
... The Journal of International Advanced Otology (IAO – Citation Abbreviation: Int Adv Otol) is the open access double-blind peer-reviewed, international publication organ of the The Mediterranean Society of Otology and Audiology. The journal is also supported by the Politzer Society. The Journal of In ...
... The Journal of International Advanced Otology (IAO – Citation Abbreviation: Int Adv Otol) is the open access double-blind peer-reviewed, international publication organ of the The Mediterranean Society of Otology and Audiology. The journal is also supported by the Politzer Society. The Journal of In ...
Effect of hearing loss
... external auditory canal (ear canal), which in turn channels sound waves to the tympanic membrane (known as the eardrum) causing it to vibrate. The tympanic membrane is a thin, semi-transparent, flexible membrane that separates the outer and middle ear. The outer ear functions to collect sound (acous ...
... external auditory canal (ear canal), which in turn channels sound waves to the tympanic membrane (known as the eardrum) causing it to vibrate. The tympanic membrane is a thin, semi-transparent, flexible membrane that separates the outer and middle ear. The outer ear functions to collect sound (acous ...
Effects of Stapedius-Muscle Contractions on Masking of Tone
... of auditory-nerve fiber responses; and (4) a test of a mechanistic model which attempts to explain the results of (3) from the results of (1) and (2). The measurements were made with the stapedius muscle activated by artificial electric stimulation (activation of the stapedius muscle by the central ...
... of auditory-nerve fiber responses; and (4) a test of a mechanistic model which attempts to explain the results of (3) from the results of (1) and (2). The measurements were made with the stapedius muscle activated by artificial electric stimulation (activation of the stapedius muscle by the central ...
Hearing Evaluation
... energy (called formants) at different frequencies. Speech sounds /i/ and /u/ share a common formant at around 300 Hz, but their second and third formants are higher in frequency and differ widely. Thus, a student who is unable to hear the second and third formants, because of reduced audibility, may ...
... energy (called formants) at different frequencies. Speech sounds /i/ and /u/ share a common formant at around 300 Hz, but their second and third formants are higher in frequency and differ widely. Thus, a student who is unable to hear the second and third formants, because of reduced audibility, may ...
7.01.05 Cochlear Implant
... Cochlear implantation has a profound impact on hearing and speech reception in postlingually deafened adults with positive impacts on psychological and social functioning. Pre-lingually deafened adults may also benefit, although to a lesser extent than post-lingually deafened adults. These indiv ...
... Cochlear implantation has a profound impact on hearing and speech reception in postlingually deafened adults with positive impacts on psychological and social functioning. Pre-lingually deafened adults may also benefit, although to a lesser extent than post-lingually deafened adults. These indiv ...
Cochlear Implant - Capital Blue Cross
... sounds that are louder than 90 dB HL [hearing level] at frequencies of 2 and 4 kHz without acoustic hearing aids. Adequate benefit from acoustic hearing aids is defined for this guidance as: for adults, a score of 50% or greater on Bamford-Kowal-Bench (BKB) sentence testing at a sound intensity of 7 ...
... sounds that are louder than 90 dB HL [hearing level] at frequencies of 2 and 4 kHz without acoustic hearing aids. Adequate benefit from acoustic hearing aids is defined for this guidance as: for adults, a score of 50% or greater on Bamford-Kowal-Bench (BKB) sentence testing at a sound intensity of 7 ...
International Archives of Otorhinolaryngology
... were obtained. Topographic maps the SomatosensoryEvoked-Potentials (N20) showed expansion. Cortical areas: temporal in deaf and temporal-occipital in deafblind were activated. These regions under normal physiological conditions processed information auditory and visual but no somatosensory. The expa ...
... were obtained. Topographic maps the SomatosensoryEvoked-Potentials (N20) showed expansion. Cortical areas: temporal in deaf and temporal-occipital in deafblind were activated. These regions under normal physiological conditions processed information auditory and visual but no somatosensory. The expa ...
Olivocochlear system
The olivocochlear system is a component of the auditory system involved with the descending control of the cochlea. Its nerve fibres, the olivocochlear bundle (OCB), form part of the vestibulocochlear nerve (VIIIth cranial nerve, also known as the auditory-vestibular nerve), and project from the superior olivary complex in the brainstem (pons) to the cochlea.