Accession Number : AD0610827

Title :   THEORIES OF AURAL PHYSIOLOGY.

Descriptive Note : Rept. no. 13,

Corporate Author : MICHIGAN UNIV ANN ARBOR COMMUNICATION SCIENCES LAB

Personal Author(s) : Klatt,Dennis H.

Report Date : NOV 1964

Pagination or Media Count : 148

Abstract : The purpose of the investigation is to formulate and test theories of the physiology of the hearing process. Each theory pertains to a particular subdivision of the mammalian peripheral auditory system. A set of formal hypotheses are based on available information about the anatomy and physiology of the ear. The hypotheses implicitly define the behavior of the physiological variables and relate to auditory information encoding and processing in the peripheral ear and central nervous system. The implications of the theoretical assumptions are deduced experimentally by employing homomorphic electronic analogs. When the behavior predicted by the theory agrees with relevant experimental data, then the formal system provides a useful model of certain aspects of aural physiology. The study has resulted in the construction of electronic circuitry which models: (1) cochlear mechanics, (2) the encoding transformation which generates firing patterns on the primary auditory neurons, and (3) the processing of encoded information by second-order neurons of the cochlear nucleus. (Author)

Descriptors :   (*HEARING, MATHEMATICAL MODELS), (*AUDITORY NERVE, PHYSIOLOGY), EAR, CENTRAL NERVOUS SYSTEM, NERVE FIBERS, NERVE CELLS, NERVE IMPULSES, REFLEXES, INHIBITION, DIFFERENTIAL EQUATIONS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE