Auditory Fatigue from Audio Analgesia

Kryter, Karl D.; Weisz, A. Z.; Wiener, Francis M.

doi:10.1121/1.1918138

Cited by 14 publications

(3 citation statements)

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“…In attempting to specify the maximum tolerable exposure that would meet the criterion in the previous section, the Working Group used data from (a) studies of permanent losses of hearing incurred by workers in industries (Kylin, 1960;Rosenwinkel & Stewart, 1957;Rudmose, 1957), and (b) studies of temporary threshold shift (TTS) conducted in research laboratories (Carter & Kryter, 1962;Davis, Morgan, Hawkins, Galambos, & Smith, 1950;Kryter, Weisz, & Wiener, 1962;Kryter, 1963;Kylin, 1960;Miller, 1959. Ward et al , 19581959a;1959b;1959c;Ward, 1960;1962a;1962b).…”

Section: Bases For Specification Of Tolerable Exposure To Soundmentioning

confidence: 99%

Hazardous Exposure to Intermittent and Steady-State Noise

Kryter

1966

The Journal of the Acoustical Society of America

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166

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The following document was prepared by NAS-NRC CHABA Working Group 46. This group was asked to specify damage-risk criteria for exposure to sound. The paper contains graphs of maximum sound-pressure levels and durations of exposures that the Working Group believes would be tolerable and examples of the use of these graphs in addition to background information and a discussion of the rationale, assumptions, limitations, and general problems pertinent to the development and application of a damage-risk criterion and related exposure contours.

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Section: Bases For Specification Of Tolerable Exposure To Soundmentioning

confidence: 99%

Hazardous Exposure to Intermittent and Steady-State Noise

Kryter

1966

The Journal of the Acoustical Society of America

Self Cite

166

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“…However, the sample size (two individuals) is too small to draw general conclusions about variability within the species, and F01 and M02 are genetically related (mother and son). Studies on humans and other terrestrial mammals show individual, genetic, and population-level differences in susceptibility to TTS (Kylin, 1960;Kryter et al, 1962;Henderson et al, 1993;Wang et al, 2002;Davis et al, 2003;Spankovich et al, 2014). Therefore, further replication with more California sea lions is needed to assess individual differences.…”

Section: Individual Differences In Susceptibility To and Recovery Fro...mentioning

confidence: 99%

Temporary Hearing Threshold Shift in California Sea Lions (Zalophus californianus) Due to a Noise Band Centered at 32 kHz

Kastelein,

Helder-Hoek,

Van Acoleyen

et al. 2024

Aquatic Mamm

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To determine their frequency-dependent susceptibility to noise-induced temporary hearing threshold shift (TTS), two California sea lions (Zalophus californianus) were exposed for 60 min to a continuous one-sixth-octave noise band (NB) centered at 32 kHz as the fatiguing sound, at sound pressure levels of 132 to 156 dB re 1 µPa (sound exposure levels [SELs] of 168 to 192 dB re 1 µPa2s). Using a psychoacoustic technique, TTSs were quantified at the center frequency of the fatiguing sound and at half an octave and one octave above the center frequency (at 32, 44.8, and 63 kHz). When significant TTS occurred, higher SELs resulted in greater TTSs. TTSs and hearing recovery patterns were similar in both sea lions. The mean onset of TTS1-4 min (defined as 6 dB TTS) in sea lion F01 is estimated to occur after exposure to an SEL of 179 dB re 1 µPa2s (at hearing test frequency 44.8 kHz). After exposure to an SEL of 180 dB re 1 µPa2s, a mean TTS1-4 min of 6.7 dB was measured at hearing test frequency 44.8 kHz. In California sea lions, TTS onset levels are not as closely related (especially at the lower and higher frequencies) to the unmasked hearing thresholds (audiograms) as was previously assumed.

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“…However, at the highest exposure level, TTS was 7 dB higher in seal F01 than in seal F02. Studies on humans and other terrestrial mammals show large individual, genetic and population-level differences in susceptibility to TTS (Kylin, 1960;Kryter et al, 1962;Henderson et al, 1993;Davis et al, 2003;Spankovich et al, 2014). Therefore, further replication with more harbor seals is needed to assess the generality of the results obtained.…”

Section: A Evaluationmentioning

confidence: 99%

Frequency of greatest temporary hearing threshold shift in harbor seals (Phoca vitulina) depends on fatiguing sound level

Kastelein¹,

Helder-Hoek²,

Gransier

2019

The Journal of the Acoustical Society of America

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Harbor seals may suffer hearing loss due to intense sounds. After exposure for 60 min to a continuous 6.5 kHz tone at sound pressure levels of 123-159 dB re 1 mPa, resulting in sound exposure levels (SELs) of 159-195 dB re 1 lPa 2 s, temporary threshold shifts (TTSs) in two harbor seals were quantified at the center frequency of the fatiguing sound (6.5 kHz) and at 0.5 and 1.0 octaves above that frequency (9.2 and 13.0 kHz) by means of a psychoacoustic technique. Taking into account the different timing of post-exposure hearing tests, susceptibility to TTS was similar in both animals. The higher the SEL, the higher the TTS induced at frequencies above the fatiguing sound's center frequency. Below $179 dB re 1 lPa 2 s, the maximum TTS was at the center frequency (6.5 kHz); above $179 dB re 1 lPa 2 s, the maximum TTS was at half an octave above the center frequency (9.2 kHz). These results should be considered when interpreting previous TTS studies, and when estimating ecological impacts of anthropogenic sound on the hearing and ecology of harbor seals. Based on the results of the present study and previous studies, harbor seal hearing, in the frequency range 2.5-6.5 kHz, appears to be approximately equally susceptible to TTS.

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Auditory Fatigue from Audio Analgesia

Cited by 14 publications

References 0 publications

Hazardous Exposure to Intermittent and Steady-State Noise

Hazardous Exposure to Intermittent and Steady-State Noise

Temporary Hearing Threshold Shift in California Sea Lions (Zalophus californianus) Due to a Noise Band Centered at 32 kHz

Frequency of greatest temporary hearing threshold shift in harbor seals (Phoca vitulina) depends on fatiguing sound level

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