Dynamic Changes in Spontaneous Otoacoustic Emissions Produced by Contralateral Broadband Noise

Jacek Smurzynski; G. Lisowska; A. Grzanka; G. Namyslowski; R. Probst

doi:10.1142/9789812704931_0067

Dynamic Changes in Spontaneous Otoacoustic Emissions Produced by Contralateral Broadband Noise

Jacek Smurzynski
, G. Lisowska
, A. Grzanka
, G. Namyslowski
, R. Probst

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

Spontaneous otoacoustic emission (SOAE) changes following the onset of a broadband contralateral acoustic stimulation (CAS) presented at 65 dB SPL were measured in human subjects to evaluate the time-course of medial olivocochlear (MOC) efferent effects. Data were sampled for 1.23 s with the onset of the recording window at 409 ms prior to an abrupt onset of CAS. For each ear, a set of 50 waveform samples was analyzed off-line. The results indicated that: (1) CAS alters SOAEs with a latency in the range of tens of milliseconds relative to the CAS onset, and (2) SOAE frequency increases with a shorter latency than the latency of SOAE amplitude decrease. It is postulated that contralateral suppression of SOAEs is mediated primarily by MOC activity rather than through the stapedial reflex.

Original language	American English
Title of host publication	Biophysics of the Cochlea: From Molecules to Models
DOIs	https://doi.org/10.1142/9789812704931_0067
State	Published - Jan 1 2003

Keywords

broadband noise
contralateral
dynamic changes
spontaneous otoacoustic emissions

Disciplines

Speech Pathology and Audiology

Access to Document

10.1142/9789812704931_0067License: Unspecified

Cite this

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title = "Dynamic Changes in Spontaneous Otoacoustic Emissions Produced by Contralateral Broadband Noise",

abstract = " Spontaneous otoacoustic emission (SOAE) changes following the onset of a broadband contralateral acoustic stimulation (CAS) presented at 65 dB SPL were measured in human subjects to evaluate the time-course of medial olivocochlear (MOC) efferent effects. Data were sampled for 1.23 s with the onset of the recording window at 409 ms prior to an abrupt onset of CAS. For each ear, a set of 50 waveform samples was analyzed off-line. The results indicated that: (1) CAS alters SOAEs with a latency in the range of tens of milliseconds relative to the CAS onset, and (2) SOAE frequency increases with a shorter latency than the latency of SOAE amplitude decrease. It is postulated that contralateral suppression of SOAEs is mediated primarily by MOC activity rather than through the stapedial reflex. ",

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author = "Jacek Smurzynski and G. Lisowska and A. Grzanka and G. Namyslowski and R. Probst",

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AU - Lisowska, G.

AU - Grzanka, A.

AU - Namyslowski, G.

AU - Probst, R.

N1 - In general, only the information that you provide, or the choices you make while visiting a web site, can be stored in a cookie. For example, the site cannot determine your email name unless you choose to type it.

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N2 - Spontaneous otoacoustic emission (SOAE) changes following the onset of a broadband contralateral acoustic stimulation (CAS) presented at 65 dB SPL were measured in human subjects to evaluate the time-course of medial olivocochlear (MOC) efferent effects. Data were sampled for 1.23 s with the onset of the recording window at 409 ms prior to an abrupt onset of CAS. For each ear, a set of 50 waveform samples was analyzed off-line. The results indicated that: (1) CAS alters SOAEs with a latency in the range of tens of milliseconds relative to the CAS onset, and (2) SOAE frequency increases with a shorter latency than the latency of SOAE amplitude decrease. It is postulated that contralateral suppression of SOAEs is mediated primarily by MOC activity rather than through the stapedial reflex.

AB - Spontaneous otoacoustic emission (SOAE) changes following the onset of a broadband contralateral acoustic stimulation (CAS) presented at 65 dB SPL were measured in human subjects to evaluate the time-course of medial olivocochlear (MOC) efferent effects. Data were sampled for 1.23 s with the onset of the recording window at 409 ms prior to an abrupt onset of CAS. For each ear, a set of 50 waveform samples was analyzed off-line. The results indicated that: (1) CAS alters SOAEs with a latency in the range of tens of milliseconds relative to the CAS onset, and (2) SOAE frequency increases with a shorter latency than the latency of SOAE amplitude decrease. It is postulated that contralateral suppression of SOAEs is mediated primarily by MOC activity rather than through the stapedial reflex.

KW - broadband noise

KW - contralateral

KW - dynamic changes

KW - spontaneous otoacoustic emissions

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M3 - Chapter

BT - Biophysics of the Cochlea: From Molecules to Models

ER -

Dynamic Changes in Spontaneous Otoacoustic Emissions Produced by Contralateral Broadband Noise

Abstract

Keywords

Disciplines

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