Low-frequency tone-pip-evoked otoacoustic emissions originate over a broad cochlear region in chinchillas

Karolina K. Charaziak, Jonathan H. Siegel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Otoacoustic emissions evoked with transient sounds (TEOAEs) are believed to originate within the tonotopic region of the stimulus in the cochlea via the same mechanisms as emissions evoked with single tones. However, we found that emissions evoked by low frequency (< 3 kHz) single-tones have an extended region of generation (> 6 mm) in chinchillas (Charaziak and Siegel, 2014, ARO Abst., 119). Here we test whether a broad region of generation for low-frequency stimuli is also a characteristic of TEOAEs evoked with 1-kHz tone pips extracted with compression and suppression methods. The TEOAE could be revealed with moderate level suppressors with frequencies extending beyond the stimulus bandwidth (up to 12.1 kHz), with the largest responses obtained with 3.1-4.1 kHz suppressors. There was a consistent decline in group delays of suppressor-revealed TEOAEs with increasing suppressor frequency, as expected if higher-frequency suppressors acted on more basal TEOAE generators. Effects of mid-to high-frequency acoustic trauma on TEOAE levels confirm the notion that the suppressors interact with emission components arising near the tonotopic place of the suppressor.

Original languageEnglish (US)
Title of host publicationMechanics of Hearing
Subtitle of host publicationProtein to Perception - Proceedings of the 12th International Workshop on the Mechanics of Hearing
EditorsDavid P. Corey, K. Domenica Karavitaki
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413504
DOIs
StatePublished - Dec 31 2015
Event12th International Workshop on the Mechanics of Hearing: Protein to Perception - Cape Sounio, Greece
Duration: Jun 23 2014Jun 29 2014

Publication series

NameAIP Conference Proceedings
Volume1703
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other12th International Workshop on the Mechanics of Hearing: Protein to Perception
CountryGreece
CityCape Sounio
Period6/23/146/29/14

Fingerprint

suppressors
low frequencies
stimuli
cochlea
acoustics
generators
retarding
bandwidth

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cite this

Charaziak, K. K., & Siegel, J. H. (2015). Low-frequency tone-pip-evoked otoacoustic emissions originate over a broad cochlear region in chinchillas. In D. P. Corey, & K. D. Karavitaki (Eds.), Mechanics of Hearing: Protein to Perception - Proceedings of the 12th International Workshop on the Mechanics of Hearing [090016] (AIP Conference Proceedings; Vol. 1703). American Institute of Physics Inc.. https://doi.org/10.1063/1.4939414
Charaziak, Karolina K. ; Siegel, Jonathan H. / Low-frequency tone-pip-evoked otoacoustic emissions originate over a broad cochlear region in chinchillas. Mechanics of Hearing: Protein to Perception - Proceedings of the 12th International Workshop on the Mechanics of Hearing. editor / David P. Corey ; K. Domenica Karavitaki. American Institute of Physics Inc., 2015. (AIP Conference Proceedings).
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abstract = "Otoacoustic emissions evoked with transient sounds (TEOAEs) are believed to originate within the tonotopic region of the stimulus in the cochlea via the same mechanisms as emissions evoked with single tones. However, we found that emissions evoked by low frequency (< 3 kHz) single-tones have an extended region of generation (> 6 mm) in chinchillas (Charaziak and Siegel, 2014, ARO Abst., 119). Here we test whether a broad region of generation for low-frequency stimuli is also a characteristic of TEOAEs evoked with 1-kHz tone pips extracted with compression and suppression methods. The TEOAE could be revealed with moderate level suppressors with frequencies extending beyond the stimulus bandwidth (up to 12.1 kHz), with the largest responses obtained with 3.1-4.1 kHz suppressors. There was a consistent decline in group delays of suppressor-revealed TEOAEs with increasing suppressor frequency, as expected if higher-frequency suppressors acted on more basal TEOAE generators. Effects of mid-to high-frequency acoustic trauma on TEOAE levels confirm the notion that the suppressors interact with emission components arising near the tonotopic place of the suppressor.",
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Charaziak, KK & Siegel, JH 2015, Low-frequency tone-pip-evoked otoacoustic emissions originate over a broad cochlear region in chinchillas. in DP Corey & KD Karavitaki (eds), Mechanics of Hearing: Protein to Perception - Proceedings of the 12th International Workshop on the Mechanics of Hearing., 090016, AIP Conference Proceedings, vol. 1703, American Institute of Physics Inc., 12th International Workshop on the Mechanics of Hearing: Protein to Perception, Cape Sounio, Greece, 6/23/14. https://doi.org/10.1063/1.4939414

Low-frequency tone-pip-evoked otoacoustic emissions originate over a broad cochlear region in chinchillas. / Charaziak, Karolina K.; Siegel, Jonathan H.

Mechanics of Hearing: Protein to Perception - Proceedings of the 12th International Workshop on the Mechanics of Hearing. ed. / David P. Corey; K. Domenica Karavitaki. American Institute of Physics Inc., 2015. 090016 (AIP Conference Proceedings; Vol. 1703).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Otoacoustic emissions evoked with transient sounds (TEOAEs) are believed to originate within the tonotopic region of the stimulus in the cochlea via the same mechanisms as emissions evoked with single tones. However, we found that emissions evoked by low frequency (< 3 kHz) single-tones have an extended region of generation (> 6 mm) in chinchillas (Charaziak and Siegel, 2014, ARO Abst., 119). Here we test whether a broad region of generation for low-frequency stimuli is also a characteristic of TEOAEs evoked with 1-kHz tone pips extracted with compression and suppression methods. The TEOAE could be revealed with moderate level suppressors with frequencies extending beyond the stimulus bandwidth (up to 12.1 kHz), with the largest responses obtained with 3.1-4.1 kHz suppressors. There was a consistent decline in group delays of suppressor-revealed TEOAEs with increasing suppressor frequency, as expected if higher-frequency suppressors acted on more basal TEOAE generators. Effects of mid-to high-frequency acoustic trauma on TEOAE levels confirm the notion that the suppressors interact with emission components arising near the tonotopic place of the suppressor.

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PB - American Institute of Physics Inc.

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Charaziak KK, Siegel JH. Low-frequency tone-pip-evoked otoacoustic emissions originate over a broad cochlear region in chinchillas. In Corey DP, Karavitaki KD, editors, Mechanics of Hearing: Protein to Perception - Proceedings of the 12th International Workshop on the Mechanics of Hearing. American Institute of Physics Inc. 2015. 090016. (AIP Conference Proceedings). https://doi.org/10.1063/1.4939414