![]() Cochlear nerve aplasia and hypoplasia: Predictors of cochlear implant success. Peng KA, Kuan EC, Hagan S, Wilkinson EP, Miller ME. Abstract: Impulse responses of auditory nerve fibers are characterized by frequency sweeps, or glides in instantaneous frequency. Diagnosis and management of acute cerebellar infarction. Wright J, Huang C, Strbian D, Sundararajan S. Pathology of the vestibulocochlear nerve. Phase locking to the fine structure of acoustic stimuli is. doi:10.1136/bcr-2017-223402ĭe Foer B, Kenis C, Van Melkebeke D. Primary auditory afferents (auditory-nerve fibers ANFs) show phase locking in response to low-frequency tones, low-frequency components of broadband sounds, and low-frequency fluctuations of envelopes (for review, see Joris et al., 2004 Heil and Peterson, 2015, 2017 ). Case report: Rare presentation of AICA syndrome. Neuro-otological aspects of cerebellar stroke syndrome. Association of multiple sclerosis and sudden sensorineural hearing loss. How the ear works.Ītula S, Sinkkonen ST, Saat R, Sairanen T, Atula T. Neuroanatomy, cranial nerve 8 (vestibulocochlear). They provide synaptic connections between the hair cells of the cochlea and the cochlear nucleus within the brainstem. The model provides a tool for studying the roles of these nonlinearities in the encoding of simple and complex sounds in the responses of populations of AN fibers.Bordoni B, Mankowski NL, Daly DR. Auditory nerve fibers also play an important role in auditory pathway. The implementation of this model represents a relatively simple phenomenological description of a single mechanism that underlies several important nonlinear response properties of AN fibers. After a brief analysis of the external, middle ears, and cochlea, the responses of auditory nerve fibers are described. These properties included the asymmetrical growth of suppression above and below the characteristic frequency and the frequency offset of the suppression tuning curve with respect to the excitatory tuning curve. ![]() By making the control-path filter level dependent and tuned to a frequency slightly higher than the signal-path filter, other properties of two-tone suppression were also included. The low-CF fiber (a), but not the high-CF-fiber (b), tends to discharge spikes with intervals close to the period of its CF (T. a, b All-order interspike interval histograms computed from the responses of two ANFs to 50 repetitions of a 1-s-long broadband noise burst presented at 70 dB SPL. The high-SR group (SR > 18 spikes/s) forms 60 of the fiber population. The distribution of spontaneous discharge rates (SR) is bimodal, separating AN fibers into two groups. By making the bandwidth of the control path broad with respect to the signal path, the wide frequency range of two-tone suppression was included. Auditory nerve fibers phase lock to broadband noise. frequency map for the cat: Labeling auditory-nerve fibers of known characteristic frequency. Level-dependent gain (compression), bandwidth, and phase properties were implemented with a control path that varied the gain and bandwidth of tuning in the signal-path filter. A phenomenological model was developed to describe responses of high-spontaneous-rate auditory-nerve (AN) fibers, including several nonlinear response properties. ![]()
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