Deviations from scaling symmetry in the apical half of the human cochlea

Carolina Abdala; Sumitrajit Dhar; Radha Kalluri

doi:10.1063/1.3658135

Deviations from scaling symmetry in the apical half of the human cochlea

Carolina Abdala^*, Sumitrajit Dhar, Radha Kalluri

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

6 Citations (Scopus)

Abstract

Invariant distortion product otoacoustic emission (DPOAE) phase elucidates scaling symmetry in the cochlea. Below some low-frequency boundary, DPOAE phase slope steepens. The origin of this break in phase invariance is not clear. Stimulus frequency (SF)OAE delays computed from the slope of phase also manifest discontinuities at low frequencies, though the relationship between the breaking of cochlear scaling as defined by SFOAE and DPOAE metrics has not been examined. In this study, OAEs were recorded in normal-hearing human adults to probe cochlear scaling and its breaking and to examine the correspondence between two OAE metrics of scaling. Results indicate: (1) the apical break in DPOAE phase invariance cannot be explained by contributions from the reflection-source component; (2) DPOAE phase signals a break from scaling near 1.5 kHz and (3) DPOAE and SFOAE metrics of cochlear scaling produce phase discontinuities within approximately one-quarter octave of each other and show comparable rates of breaking, suggesting a common underlying origin.

Original language	English
Title of host publication	What fire is in mine ears: progress in auditory biomechanics
Subtitle of host publication	Proceedings of the 11th International Mechanics of Hearing Workshop
Editors	Christopher A. Shera, Elizabeth S. Olson
Place of Publication	Melville, NY
Publisher	American Institute of Physics
Pages	483-488
Number of pages	6
ISBN (Print)	9780735409750
DOIs	https://doi.org/10.1063/1.3658135
Publication status	Published - 2011
Externally published	Yes
Event	11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics - Williamstown, MA, United States Duration: 16 Jul 2011 → 22 Jul 2011

Publication series

Name	AIP Conference Proceedings
Publisher	AIP Publishing
Number	1
Volume	1403
ISSN (Electronic)	0094-243X

Other

Other	11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics
Country	United States
City	Williamstown, MA
Period	16/07/11 → 22/07/11

Keywords

cochlea
OAE
otoacoustic emissions
scaling

Access to Document

10.1063/1.3658135

Link to publication in Scopus

Cite this

Abdala, C., Dhar, S., & Kalluri, R. (2011). Deviations from scaling symmetry in the apical half of the human cochlea. In C. A. Shera, & E. S. Olson (Eds.), What fire is in mine ears: progress in auditory biomechanics: Proceedings of the 11th International Mechanics of Hearing Workshop (pp. 483-488). (AIP Conference Proceedings; Vol. 1403, No. 1). American Institute of Physics. https://doi.org/10.1063/1.3658135

Abdala, Carolina ; Dhar, Sumitrajit ; Kalluri, Radha. / Deviations from scaling symmetry in the apical half of the human cochlea. What fire is in mine ears: progress in auditory biomechanics: Proceedings of the 11th International Mechanics of Hearing Workshop. editor / Christopher A. Shera ; Elizabeth S. Olson. Melville, NY : American Institute of Physics, 2011. pp. 483-488 (AIP Conference Proceedings; 1).

@inproceedings{fede0900c0e346f3b94775946d55d479,

title = "Deviations from scaling symmetry in the apical half of the human cochlea",

abstract = "Invariant distortion product otoacoustic emission (DPOAE) phase elucidates scaling symmetry in the cochlea. Below some low-frequency boundary, DPOAE phase slope steepens. The origin of this break in phase invariance is not clear. Stimulus frequency (SF)OAE delays computed from the slope of phase also manifest discontinuities at low frequencies, though the relationship between the breaking of cochlear scaling as defined by SFOAE and DPOAE metrics has not been examined. In this study, OAEs were recorded in normal-hearing human adults to probe cochlear scaling and its breaking and to examine the correspondence between two OAE metrics of scaling. Results indicate: (1) the apical break in DPOAE phase invariance cannot be explained by contributions from the reflection-source component; (2) DPOAE phase signals a break from scaling near 1.5 kHz and (3) DPOAE and SFOAE metrics of cochlear scaling produce phase discontinuities within approximately one-quarter octave of each other and show comparable rates of breaking, suggesting a common underlying origin.",

keywords = "cochlea, OAE, otoacoustic emissions, scaling",

author = "Carolina Abdala and Sumitrajit Dhar and Radha Kalluri",

year = "2011",

doi = "10.1063/1.3658135",

language = "English",

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note = "11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics ; Conference date: 16-07-2011 Through 22-07-2011",

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Abdala, C, Dhar, S & Kalluri, R 2011, Deviations from scaling symmetry in the apical half of the human cochlea. in CA Shera & ES Olson (eds), What fire is in mine ears: progress in auditory biomechanics: Proceedings of the 11th International Mechanics of Hearing Workshop. AIP Conference Proceedings, no. 1, vol. 1403, American Institute of Physics, Melville, NY, pp. 483-488, 11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics, Williamstown, MA, United States, 16/07/11. https://doi.org/10.1063/1.3658135

Deviations from scaling symmetry in the apical half of the human cochlea. / Abdala, Carolina; Dhar, Sumitrajit; Kalluri, Radha.

What fire is in mine ears: progress in auditory biomechanics: Proceedings of the 11th International Mechanics of Hearing Workshop. ed. / Christopher A. Shera; Elizabeth S. Olson. Melville, NY : American Institute of Physics, 2011. p. 483-488 (AIP Conference Proceedings; Vol. 1403, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AU - Abdala, Carolina

AU - Dhar, Sumitrajit

AU - Kalluri, Radha

PY - 2011

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N2 - Invariant distortion product otoacoustic emission (DPOAE) phase elucidates scaling symmetry in the cochlea. Below some low-frequency boundary, DPOAE phase slope steepens. The origin of this break in phase invariance is not clear. Stimulus frequency (SF)OAE delays computed from the slope of phase also manifest discontinuities at low frequencies, though the relationship between the breaking of cochlear scaling as defined by SFOAE and DPOAE metrics has not been examined. In this study, OAEs were recorded in normal-hearing human adults to probe cochlear scaling and its breaking and to examine the correspondence between two OAE metrics of scaling. Results indicate: (1) the apical break in DPOAE phase invariance cannot be explained by contributions from the reflection-source component; (2) DPOAE phase signals a break from scaling near 1.5 kHz and (3) DPOAE and SFOAE metrics of cochlear scaling produce phase discontinuities within approximately one-quarter octave of each other and show comparable rates of breaking, suggesting a common underlying origin.

AB - Invariant distortion product otoacoustic emission (DPOAE) phase elucidates scaling symmetry in the cochlea. Below some low-frequency boundary, DPOAE phase slope steepens. The origin of this break in phase invariance is not clear. Stimulus frequency (SF)OAE delays computed from the slope of phase also manifest discontinuities at low frequencies, though the relationship between the breaking of cochlear scaling as defined by SFOAE and DPOAE metrics has not been examined. In this study, OAEs were recorded in normal-hearing human adults to probe cochlear scaling and its breaking and to examine the correspondence between two OAE metrics of scaling. Results indicate: (1) the apical break in DPOAE phase invariance cannot be explained by contributions from the reflection-source component; (2) DPOAE phase signals a break from scaling near 1.5 kHz and (3) DPOAE and SFOAE metrics of cochlear scaling produce phase discontinuities within approximately one-quarter octave of each other and show comparable rates of breaking, suggesting a common underlying origin.

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ER -

Abdala C, Dhar S, Kalluri R. Deviations from scaling symmetry in the apical half of the human cochlea. In Shera CA, Olson ES, editors, What fire is in mine ears: progress in auditory biomechanics: Proceedings of the 11th International Mechanics of Hearing Workshop. Melville, NY: American Institute of Physics. 2011. p. 483-488. (AIP Conference Proceedings; 1). https://doi.org/10.1063/1.3658135

Deviations from scaling symmetry in the apical half of the human cochlea

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