The Auditory Transduction Chain - Humboldt
... While you, Reader of this thesis, work your way through these pages, amazing processes will happen in your brain. Complex patterns of electrical activity will be evoked in your nerve cells, triggered by the light reflected from the paper in front of you. These patterns will, in some abstract way, co ...
... While you, Reader of this thesis, work your way through these pages, amazing processes will happen in your brain. Complex patterns of electrical activity will be evoked in your nerve cells, triggered by the light reflected from the paper in front of you. These patterns will, in some abstract way, co ...
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... whom the patient had to indicate which sound resembled his tinnitus the best. The ABRs elicited by clicks with alternating polarity were obtained with a Nicolet Viking IV D system. The stimuli were presented through headphones at a rate of 16 Hz. The stimulus intensity was 80 dB HL but a few were 90 ...
... whom the patient had to indicate which sound resembled his tinnitus the best. The ABRs elicited by clicks with alternating polarity were obtained with a Nicolet Viking IV D system. The stimuli were presented through headphones at a rate of 16 Hz. The stimulus intensity was 80 dB HL but a few were 90 ...
audiologypp
... child’s language and speech abilities which, in turn, can profoundly interfere with learning. Hearing loss within the Speech Banana can also hinder communication capabilities in adults. ...
... child’s language and speech abilities which, in turn, can profoundly interfere with learning. Hearing loss within the Speech Banana can also hinder communication capabilities in adults. ...
Model predictions for bone conduction perception in the human
... ear canal was greater with AC stimulation than with BC stimulation causing the same hearing sensation, at least for frequencies above 500 Hz. Khanna et al. (1976) estimated the contribution from the ear canal sound pressure by cancelling an AC tone by a BC tone. They reported the AC and BC sounds t ...
... ear canal was greater with AC stimulation than with BC stimulation causing the same hearing sensation, at least for frequencies above 500 Hz. Khanna et al. (1976) estimated the contribution from the ear canal sound pressure by cancelling an AC tone by a BC tone. They reported the AC and BC sounds t ...
Auditory neuropathy spectrum: the importance of adequate diagnosis
... in isolated frequencies, however, without reaching the criterion “pass” in the test. Despite the plastic tube of insert phones were not tied up during the ABR test in order to confirm the presence of the CM5, OAE test was performed. In this test cochlear function responses were obtained in some isol ...
... in isolated frequencies, however, without reaching the criterion “pass” in the test. Despite the plastic tube of insert phones were not tied up during the ABR test in order to confirm the presence of the CM5, OAE test was performed. In this test cochlear function responses were obtained in some isol ...
Tactile Communication of Speech—C.M. Reed, N.I. Durlach
... independently from trial to trial. Thresholds were estimated from psychometric functions of d’ as a function of SOA. The experimentsFor two-finger stimulation, temporal onset-order thresholds ranged from roughly 20 to 70 msec across subjects and were relatively independent of frequency separation. F ...
... independently from trial to trial. Thresholds were estimated from psychometric functions of d’ as a function of SOA. The experimentsFor two-finger stimulation, temporal onset-order thresholds ranged from roughly 20 to 70 msec across subjects and were relatively independent of frequency separation. F ...
Study of the properties of the middle-ear prosthesis
... for example mechanical properties of the eardrum and the inner ear such as stiffness of the oval or round windows, stiffness of the basement membrane, losses occurring in the middle ear or the inner ear. Apart from that it is not entirely ascertained which parameters are important and should be abso ...
... for example mechanical properties of the eardrum and the inner ear such as stiffness of the oval or round windows, stiffness of the basement membrane, losses occurring in the middle ear or the inner ear. Apart from that it is not entirely ascertained which parameters are important and should be abso ...
Full text - Acta Palaeontologica Polonica
... compliance. He assumed that the fully mammalian acoustic transformer system, with tympanic cavity and tympanic membrane, could only have evolved after the origin of the dentary-squamosal jaw articulation (Kemp 2007). A further indication for the hearing range is the length of the cochlea, which is u ...
... compliance. He assumed that the fully mammalian acoustic transformer system, with tympanic cavity and tympanic membrane, could only have evolved after the origin of the dentary-squamosal jaw articulation (Kemp 2007). A further indication for the hearing range is the length of the cochlea, which is u ...
Understanding and preventing noise
... The cochlea, shaped like a snail, contains thousands of delicate hair cells (auditory sensory cells) in the organ of Corti. There are two types of hair cells, called inner and outer hair cells. When the sound waves enter the inner ear from the middle ear, the outer hair cells help amplify sound vibr ...
... The cochlea, shaped like a snail, contains thousands of delicate hair cells (auditory sensory cells) in the organ of Corti. There are two types of hair cells, called inner and outer hair cells. When the sound waves enter the inner ear from the middle ear, the outer hair cells help amplify sound vibr ...
Hearing Loss in Children: The Otologist`s Perspective
... (1) further characterize the hearing loss etiology, (2) identify anatomical markers for hearing loss progression, (3) predict poor prognosis from interventions such as amplification and/or cochlear implantation, and (4) identify lesions of the central nervous system that require medical/surgical int ...
... (1) further characterize the hearing loss etiology, (2) identify anatomical markers for hearing loss progression, (3) predict poor prognosis from interventions such as amplification and/or cochlear implantation, and (4) identify lesions of the central nervous system that require medical/surgical int ...
Loudness functions with air and bone conduction stimulation in normal-hearing
... stimulation level of 10 dB resulted in a 10 dB level increase of the required AC cancellation tone. Consequently, they reported the relative amplitude and phase settings at cancellation to be independent of stimulation level. Another AC-BC cancellation study that investigated the level-dependence of ...
... stimulation level of 10 dB resulted in a 10 dB level increase of the required AC cancellation tone. Consequently, they reported the relative amplitude and phase settings at cancellation to be independent of stimulation level. Another AC-BC cancellation study that investigated the level-dependence of ...
Modelling the effect of round window stiffness on
... A finite element model of the round window is developed here to investigate the effect of stiffening due to a cochlear implant. The round window is initially modelled as a thin, circular flat plate (Kwacz et al., 2013) and is assumed to have a diameter of 2 mm, and a thickness of 70 mm (Zhang and Gan, ...
... A finite element model of the round window is developed here to investigate the effect of stiffening due to a cochlear implant. The round window is initially modelled as a thin, circular flat plate (Kwacz et al., 2013) and is assumed to have a diameter of 2 mm, and a thickness of 70 mm (Zhang and Gan, ...
Importance of interaural time difference in coding the azimuth in the
... space-specific filtering of the incoming sound waves. This gives additional cues to locate the sound source (Yost and Dye 1997). The filtering characteristics of the physical shape of the ears can be measured using careful measurement techniques. The incorporation of these filters, so called head-re ...
... space-specific filtering of the incoming sound waves. This gives additional cues to locate the sound source (Yost and Dye 1997). The filtering characteristics of the physical shape of the ears can be measured using careful measurement techniques. The incorporation of these filters, so called head-re ...
ABSTRACT Title of dissertation: TEMPORARY CHANGES IN AUDITORY
... when a hearing loss occurs and regions of hair cells do not function properly, neighboring hair cells might compensate by responding to additional frequencies near their resonant frequency, thereby masking the damage. As a result of this compensation, the individual might perceive speech as distort ...
... when a hearing loss occurs and regions of hair cells do not function properly, neighboring hair cells might compensate by responding to additional frequencies near their resonant frequency, thereby masking the damage. As a result of this compensation, the individual might perceive speech as distort ...
NEURO UNIT 2 EXPLAINED ANSWERS TO PRACTICE QUESTIONS
... recorded were in a dog in Minnesota, whose owner noticed the sound coming out of the animal’s ear (tell me this is not interesting!) and took the dog to a specialist, who did recordings and analysis. What may be happening is that the amplification system driven by the movements of outer hair cells i ...
... recorded were in a dog in Minnesota, whose owner noticed the sound coming out of the animal’s ear (tell me this is not interesting!) and took the dog to a specialist, who did recordings and analysis. What may be happening is that the amplification system driven by the movements of outer hair cells i ...
Recognition of Speech of Normal-hearing Individuals with Tinnitus
... discomfort to be hyperacoustic when the results found in two or more frequencies of 250 to 8000 Hz are lower than 90 dB (13). All efferent fibers original from the most different points of the central nervous system are organized at the level of the Superior Olivary Complex (SOC). From this point, t ...
... discomfort to be hyperacoustic when the results found in two or more frequencies of 250 to 8000 Hz are lower than 90 dB (13). All efferent fibers original from the most different points of the central nervous system are organized at the level of the Superior Olivary Complex (SOC). From this point, t ...
... men. Approximately 2.4% of the subjects under study had been provided with hearing aids. However, about 7.7% were estimated to potentially benefit from hearing aids as estimated from their degree of hearing loss. Noise-induced hearing loss primarily causes damage to the outer hair cells of the inner ...
2) Noise induced hearing loss
... medium of air into a liquid medium. The change from air to liquid occurs because air surrounds the head and is contained in the ear canal and middle ear, but not in the inner ear. The inner ear is hollow, embedded in the temporal bone, the densest bone of the body. The hollow channels of the inner e ...
... medium of air into a liquid medium. The change from air to liquid occurs because air surrounds the head and is contained in the ear canal and middle ear, but not in the inner ear. The inner ear is hollow, embedded in the temporal bone, the densest bone of the body. The hollow channels of the inner e ...
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.