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Bifurcation and Chaos of Spontaneous Oscillations of Hair Bundles in Auditory Hair Cells
International Journal of Bifurcation and Chaos, 2021Various spontaneous oscillations and Hopf bifurcation have been observed in hair bundles of auditory hair cells, which play very important roles in the auditory function. In the present paper, the bifurcations and chaos of spontaneous oscillations of hair bundles are investigated in a theoretical model to explain the experimental observations. Firstly,
Ben Cao +3 more
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Auditory amplification: outer hair cells pres the issue [PDF]
Trends in Neurosciences, 2003 Active feedback mechanisms in the ears of mammals amplify and tune the auditory response to sound stimuli, allowing these organisms to enjoy both exquisite sensitivity and sharp frequency selectivity. A requisite component of this feedback pathway has recently been identified.
Gwenaëlle S. G. Géléoc +1 more
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Auditory collusion and a coupled couple of outer hair cells [PDF]
Nature, 1999 The discrepancies between measured frequency responses of the basilar membrane in the inner ear and the frequency tuning found in psychophysical experiments led to Bekesy's idea of lateral inhibition in the auditory nervous system. We now know that basilar membrane tuning can account for neural tuning, and that sharpening of the passive travelling wave
Joseph Santos-Sacchi, Hong-Bo Zhao
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Two Components of Transducer Adaptation in Auditory Hair Cells
Journal of Neurophysiology, 1999Mechanoelectrical transducer currents in turtle auditory hair cells adapted to maintained stimuli via a Ca2+-dependent mechanism characterized by two time constants of ∼1 and 15 ms. The time course of adaptation slowed as the stimulus intensity was raised because of an increased prominence of the second component. The fast component of adaptation had a
Robert Fettiplace +2 more
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Recent insights into regeneration of auditory and vestibular hair cells
Current Opinion in Neurology, 1998Advances in hair cell regeneration are progressing at a rapid rate. This review will highlight and critique recent attempts to understand some of the cellular and molecular mechanisms underlying hair cell regeneration in non-mammalian vertebrates and efforts to induce regeneration in the mammalian inner ear sensory epithelium.
Edwin W. Rubel +2 more
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Sorting of actin isoforms in chicken auditory hair cells
Journal of Cell Science, 1997Most nonmuscle cells of higher vertebrates contain two different actin isoforms, beta- and gamma-cytoplasmic actin. The beta-isoform is with few exceptions the predominant isoform in nonmuscle cells and tissues. Perturbation of the beta:gamma ratio has been shown to affect the organization of bundled actin filaments indicating that the beta- and gamma ...
Detlev Drenckhahn, D. Hofer, W. Ness
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Hair cell abnormality and auditory-nerve physiology
The Journal of the Acoustical Society of America, 1978Data are presented from 14 animals: 8 acoustically traumatized animals (with survival times greater than one year) and 6 unexposed animals (born and raised in a low-noise environment [Liberman, J. Acoust. Soc. Am. 61, S27(A) (1977)]). Electrophysiological data include threshold tuning curves and spontaneous discharge rates from several hundred single ...
M. C. Liberman, D. G. Beil
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Substance P in the Auditory Hair Cells in the Guinea Pig
ORL, 1996Previous immunohistochemical and electrophysiological studies on various neurotransmitters revealed the tachykinin substance P (SP) as a neuromodulator in the auditory system of mammals. This study was performed in order to determine the immunohistochemical expression and distribution pattern of SP in the organ of Corti, especially in the inner (IHC ...
K. Ehrenberger +6 more
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Auditory hair cells in human fetuses: Synaptogenesis and ciliogenesis
Journal of Electron Microscopy Technique, 1990AbstractThis paper brings together the most recent findings concerning the development of human fetus cochlear hair cells, as observed using transmission and scanning electron microscopy (TEM and SEM). Specific attention is drawn to the formation of synapses and the growth of stereocilia.
Mireille Lavigne-Rebillard, Rémy Pujol
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Mechanical and electromotile characteristics of auditory outer hair cells
Medical & Biological Engineering & Computing, 1999The passive and active properties of the cochlear outer hair cell are studied. The outer hair cell is currently considered the major candidate for the active component of mammalian hearing. Understanding of its properties may explain the amplification and sharp frequency selectivity of the ear.
Aleksander S. Popel +2 more
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