Observations on Temporary Auditory Threshold Shift Resulting from Noise-Exposure

1959 ◽  
Vol 50 (1-2) ◽  
pp. 76-77
Author(s):  
Aram Glorig ◽  
Anne Summerfield ◽  
W. Dixon Ward
Keyword(s):  
Noise Exposure ◽  
Auditory Threshold ◽  
Threshold Shift

LXI Observations on Temporary Auditory Threshold Shift Resulting from Noise-Exposure

1958 ◽  
Vol 67 (3) ◽  
pp. 824-837 ◽  
Author(s):  
Aram Glorig ◽  
Anne Summerfield ◽  
W. Dixon Ward
Keyword(s):  
Noise Exposure ◽  
Auditory Threshold ◽  
Threshold Shift

Damage Risk: An Evaluation of the Effects of Exposure to 85 versus 90 dBA of Noise

1976 ◽  
Vol 19 (2) ◽  
pp. 216-224 ◽  
Author(s):  
James T. Yates ◽  
Jerry D. Ramsey ◽  
Jay W. Holland
Keyword(s):  
White Noise ◽  
Statistical Difference ◽  
Noise Exposure ◽  
Threshold Shift ◽  
Temporary Threshold Shift ◽  
Noise Levels ◽  
Potential Damage ◽  
Full Day ◽  
Damage Risk

The purpose of this study was to compare the damage risk of 85 and 90 dBA of white noise for equivalent full-day exposures. The damage risk of the two noise levels was determined by comparing the temporary threshold shift (TTS) of 12 subjects exposed to either 85 or 90 dBA of white noise for equivalent half- and full-day exposures. TTS was determined by comparing the pre- and postexposure binaural audiograms of each subject at 1, 2, 3, 4, 6, and 8 kHz. It was concluded that the potential damage risk, that is, hazardous effect, of 90 dBA is greater than 85 dBA of noise for equivalent full-day exposures. The statistical difference between the overall effects of equivalent exposures to 85 dBA as compared to 90 dBA of noise could not be traced to any one frequency. The damage risk of a full-day exposure to 85 dBA is equivalent to that of a half-day exposure to 90 dBA of noise. Within the limits of this study, TTS t was as effective as TTS 2 for estimating the damage risk of noise exposure.

scholarly journals Effect of Phlorofucofuroeckol A and Dieckol Extracted from Ecklonia cava on Noise-induced Hearing Loss in a Mouse Model

Marine Drugs ◽  
2021 ◽  
Vol 19 (8) ◽  
pp. 443
Author(s):  
Hyunjun Woo ◽  
Min-Kyung Kim ◽  
Sohyeon Park ◽  
Seung-Hee Han ◽  
Hyeon-Cheol Shin ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Hair Cell ◽  
Noise Exposure ◽  
Radical Scavenging ◽  
Threshold Shift ◽  
Ecklonia Cava ◽  
Control Group ◽  
Noise Induced Hearing Loss ◽  
Antioxidant Agents ◽  
Brainstem Response

One of the well-known causes of hearing loss is noise. Approximately 31.1% of Americans between the ages of 20 and 69 years (61.1 million people) have high-frequency hearing loss associated with noise exposure. In addition, recurrent noise exposure can accelerate age-related hearing loss. Phlorofucofuroeckol A (PFF-A) and dieckol, polyphenols extracted from the brown alga Ecklonia cava, are potent antioxidant agents. In this study, we investigated the effect of PFF-A and dieckol on the consequences of noise exposure in mice. In 1,1-diphenyl-2-picrylhydrazyl assay, dieckol and PFF-A both showed significant radical-scavenging activity. The mice were exposed to 115 dB SPL of noise one single time for 2 h. Auditory brainstem response(ABR) threshold shifts 4 h after 4 kHz noise exposure in mice that received dieckol were significantly lower than those in the saline with noise group. The high-PFF-A group showed a lower threshold shift at click and 16 kHz 1 day after noise exposure than the control group. The high-PFF-A group also showed higher hair cell survival than in the control at 3 days after exposure in the apical turn. These results suggest that noise-induced hair cell damage in cochlear and the ABR threshold shift can be alleviated by dieckol and PFF-A in the mouse. Derivatives of these compounds may be applied to individuals who are inevitably exposed to noise, contributing to the prevention of noise-induced hearing loss with a low probability of adverse effects.

Guidelines for Auditory Threshold Measurement for Significant Threshold Shift

2016 ◽  
Vol 37 (8) ◽  
pp. e263-e270 ◽  
Author(s):  
Kathleen Campbell ◽  
Tanisha Hammill ◽  
Michael Hoffer ◽  
Jonathan Kil ◽  
Colleen Le Prell
Keyword(s):  
Auditory Threshold ◽  
Threshold Shift ◽  
Threshold Measurement

scholarly journals Audiometric notch and extended high-frequency hearing threshold shift in relation to total leisure noise exposure: An exploratory analysis

2017 ◽  
Vol 19 (91) ◽  
pp. 263 ◽  
Author(s):  
Veronika Weilnhammer ◽  
Wenjia Wei ◽  
Stefanie Heinze ◽  
DorisG Gerstner ◽  
SandraM Walser ◽  
...  
Keyword(s):  
High Frequency ◽  
Noise Exposure ◽  
Hearing Threshold ◽  
Exploratory Analysis ◽  
Threshold Shift

Temporary Threshold Shift and Otoacoustic Emissions after Industrial Noise Exposure

1995 ◽  
Vol 24 (2) ◽  
pp. 137-141 ◽  
Author(s):  
Kari J. Kvœrner ◽  
Bo Engdahl ◽  
Atle R. Arnesen ◽  
Iain W. S. Mair
Keyword(s):  
Otoacoustic Emissions ◽  
Noise Exposure ◽  
Threshold Shift ◽  
Temporary Threshold Shift ◽  
Industrial Noise

D-methionine administered as late as 36 hours post-noise exposure rescues from permanent threshold shift and dose-dependently increases serum antioxidant levels

2022 ◽  
pp. 1-8
Author(s):  
Kathleen C. M. Campbell ◽  
Nicole Cosenza ◽  
Robert Meech ◽  
Michael Buhnerkempe ◽  
Jun Qin ◽  
...  
Keyword(s):  
Noise Exposure ◽  
Threshold Shift

Noise

2020 ◽  
pp. 1671-1673
Author(s):  
David Koh ◽  
Tar-Ching Aw
Keyword(s):  
Cardiovascular Disease ◽  
Hearing Loss ◽  
Sleep Disturbance ◽  
Cognitive Performance ◽  
Noise Exposure ◽  
Threshold Shift ◽  
Temporary Threshold Shift ◽  
Noise Induced Hearing Loss ◽  
Occupational Setting ◽  
Human Ear

Noise can affect hearing in the occupational setting but can have other effects where exposures are non-occupational. For clinical purposes, noise is measured in decibels weighted according to the sensitivity of the human ear (dB(A)). Regardless of source, the effects of overexposure to noise are similar. Initially there is a temporary threshold shift, where reversibility of hearing loss is possible with removal away from further noise. Noise-induced hearing loss occurs following prolonged or intense exposure, with poor prospects for improvement of hearing. The classical audiogram for noise-induced hearing loss shows a 4 kHz dip. Non-auditory effects of prolonged noise exposure include annoyance, sleep disturbance, hypertension, and cardiovascular disease, stress, and impaired cognitive performance. Prevention of noise-induced hearing loss is by reducing exposure to noise at source minimizing exposure time, using hearing protection, and participating in surveillance.

Sign in / Sign up

Export Citation Format

Share Document