Accession Number:

ADA024300

Title:

Predictive Model of the Auditory Process as Related to Communication Systems.

Descriptive Note:

Final scientific rept. 1 Jan 71-31 Dec 75,

Corporate Author:

JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF BIOMEDICAL ENGINEERING

Personal Author(s):

Report Date:

1975-12-31

Pagination or Media Count:

12.0

Abstract:

Responses from over 300 auditory nerve fibers have been systematically recorded. This is the first of neural coding in avian primary fibers. Recordings from single fibers in the cat auditory nerve under almost identical conditions were obtained for comparisons. Aside from the different ranges of characteristic frequencies the primary differences between avian and mammalian cochlear-nerve responses seem to be the higher rates of spontaneous and driven activity in the avian fibers. Further, the investigators developed a model for relating their psychophysical results in the framework of signal detection theory which accounts for the changes in psychophysical time constant with increasing fast-tone level.

Subject Categories:

  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE