منابع مشابه
The Active Cochlea
The cochlea is a hydromechanical frequency analyzer located in the inner ear (Fig. 1 a). Its principal role is to perform a realtime spectral decomposition of the acoustic signal in producing a spatial frequency map. The frequency analysis may be understood with the aid of Figure 1 b, which shows a straightened cochlea with a snapshot of its basilar membrane displaced in response to a single-fr...
متن کاملThe Active Traveling Wave in the Cochlea
A sound stimulus entering the inner ear excites a deformation of the basilar membrane which travels along the cochlea towards the apex. It is well established that this wave-like disturbance is amplified by an active system. Recently, it has been proposed that the active system consists of a set of self-tuned critical oscillators which automatically operate at an oscillatory instability. Here, ...
متن کاملActive traveling wave in the cochlea.
A sound stimulus entering the inner ear excites a deformation of the basilar membrane which travels along the cochlea towards the apex. It is well established that this wavelike disturbance is amplified by an active system. Recently, it has been proposed that the active system consists of a set of self-tuned critical oscillators which automatically operate at an oscillatory instability. Here, w...
متن کاملA Silicon Cochlea With Active Coupling Citation
We present a mixed-signal very-large-scale-integrated chip that emulates nonlinear active cochlear signal processing. Modeling the cochlea’s micromechanics, including outer hair cell (OHC) electromotility, this silicon (Si) cochlea features active coupling between neighboring basilar membrane (BM) segments—a first. Neighboring BM segments, each implemented as a class AB log-domain second-order ...
متن کاملModeling the Nonlinear Active Cochlea : Mathematics and Analog Vlsi
MODELING THE NONLINEAR ACTIVE COCHLEA: MATHEMATICS AND ANALOG VLSI Bo Wen Supervisor: Kwabena A. Boahen The human auditory system vastly outperforms any machine in efficiency and robustness in perceiving sound. Complex and delicate, its front end, namely the cochlea, senses and processes sound in a nonlinear active fashion, exhibiting remarkable sensitivity and extraordinary frequency discrimin...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 1992
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.12-12-04575.1992