Exploring audiometric age related changes in mistuned harmony detection using a cochlear model

A. Yachin, M. Furst

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High frequency loss is common among the elderly. It is usually accompanied with other hearing deficits, such as understanding speech in noise. In this study we explored the ability of the elderly compared to young adults to detect mistuned harmony. We have used data from different studies [1],[5], which revealed degradation in detecting mistuned harmony as a function of age, focused at higher frequencies. This study examines whether the degradation of the elderly hearing ability can be explained exclusively by cochlear changes, caused by outer hair cells (OHC) loss, or other, cognitive abilities should be taken into account. The study's methodology was based on a decision making model, It comprises of a time domain cochlear model which assumes older age means less active OHC, A stochastic neural model that represents the auditory nerve firing pattern, and an optimal decision rule. The model predictions were compared to the experimental data. OHC loss caused degradation caused a decrease in the ability to detect the mistuned harmony, especially at high frequencies. We thus conclude that most of the degradation ability of the elderly in the task of mistuned harmony was caused by OHC loss. That's while many researchers tended to attribute it to cerebral processing.

Original languageEnglish
Title of host publication2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Pages61-65
Number of pages5
DOIs
StatePublished - 2008
Event2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008 - Eilat, Israel
Duration: 3 Dec 20085 Dec 2008

Publication series

NameIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

Conference

Conference2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Country/TerritoryIsrael
CityEilat
Period3/12/085/12/08

Fingerprint

Dive into the research topics of 'Exploring audiometric age related changes in mistuned harmony detection using a cochlear model'. Together they form a unique fingerprint.

Cite this