Sex Differences in Susceptibility and Resistance to Noise- Induced Hearing Loss in Chinchillas.

Abstract

Noise-induced hearing loss (NIHL) is a major occupational hazard for military personnel. Although considerable evidence points to gender differences in susceptibility to NIHL, the precise nature of these differences, and how they apply to the types of noise characteristic of military settings is currently unknown. During Year 1, experiments were conducted with chinchillas to examine sex differences in (a) basic auditory sensitivity; (b) susceptibility to temporary and permanent threshold shifts (TTS and PTS, respectively) caused by exposure to simulated Ml6 rifle fire; (c) TTS and PTS caused by exposure to 0.5 kHz octave band noise and UH-60 Blackhawk helicopter noise; and (d) the ability to benefit from prophylactic "conditioning" exposures. The results of these initial experiments point to sex differences in the response of the cochlea to noise, which could have important implications for military assigments and hearing conservation programs.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1997
Accession Number
ADA334331

Entities

People

  • Sandra L. Mcfadden

Organizations

  • University at Buffalo

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Acoustics
  • Air Force
  • Data Analysis
  • Determinants (Mathematics)
  • Diseases And Disorders
  • Ear
  • Electrophysiological Phenomena
  • Frequency
  • Hearing Disorders
  • Hearing Loss
  • Helicopters
  • Impulse Noise
  • Laboratory Animals
  • Measurement
  • Medical Personnel
  • Military Personnel
  • New York

Readers

  • Auditory Neuroscience/Auditory Physiology.
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