A silicon model of an auditory neural representation of spectral shape

Author

Lazzaro, John

Author_Institution

California Inst. of Technol., Pasadena, CA, USA

Volume

26

Issue

5

fYear

1991

fDate

5/1/1991 12:00:00 AM

Firstpage

772

Lastpage

777

Abstract

An analog integrated circuit that implements an auditory neural representation of spectral shape is described. The circuit contains silicon models of the cochlea, inner hair cells, spiral ganglion cells, and the neurons that compute an amplitude-invariant representation of spectral shape. The chip uses the temporal information in each silicon auditory nerve fiber to compute this final representation. The chip was fabricated and fully tested. Data comparing the silicon auditory nerve representation and the final representation are presented. The 9000-transistor chip computes all outputs in real time using analog continuous-time processing

Keywords

bioelectric potentials; correlators; ear; hearing; linear integrated circuits; monolithic integrated circuits; neural nets; neurophysiology; physiological models; real-time systems; Si chip model; amplitude-invariant representation; analog continuous-time processing; analog integrated circuit; auditory nerve fiber; auditory neural representation; cochlea; inner hair cells; neurons; real time; spectral shape; spiral ganglion cells; temporal information; Analog computers; Analog integrated circuits; Auditory system; Biology computing; Biomembranes; Circuit testing; Hair; Signal processing algorithms; Silicon; Spectral shape;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.78248

Filename

78248