A retrospective study of the spectral probability of spontaneous otoacoustic emissions: Rise of octave shifted second mode after infancy

Braun, Martin

doi:10.1016/j.heares.2006.03.008

Cited by 12 publications

(17 citation statements)

References 46 publications

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“…These descriptive features are inline with many observations (see Probst et al, 1991 for a review). The observed spectral characteristic of a low-pass filter in SOAE amplitudes is consistent with the studies in infants, young, and older adults (Lonsbury- Braun, 2006). The 6-dB/octive reduction rate of SOAE amplitude with increasing frequency is in close agreement with the results of some large scale investigations (Moulin et al, 1993;Penner et al, 1993).…”

Section: A Spectral Features Of Soaessupporting

confidence: 90%

“…The lack of efferent control over these OHCs in the low-frequency region could be the basis for the generation of SOAEs and the low-pass filter shape in their frequencyamplitude distribution. This could account for the developmental reduction in SOAE amplitudes and downward shift in SOAE frequencies (Burns et al, 1994;Braun, 2006). Therefore, the appearances of the SOAEs provide clues for their underlying generating mechanisms.…”

Section: A Spectral Features Of Soaesmentioning

confidence: 97%

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Effects of low-frequency biasing on spontaneous otoacoustic emissions: Amplitude modulation

Bian

Watts

2008

The Journal of the Acoustical Society of America

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The dynamic effects of low-frequency biasing on spontaneous otoacoustic emissions (SOAEs) were studied in human subjects under various signal conditions. Results showed a combined suppression and modulation of the SOAE amplitudes at high bias tone levels. Ear-canal acoustic spectra demonstrated a reduction in SOAE amplitude and growths of sidebands while increasing the bias tone level. These effects varied depending on the relative strength of the bias tone to a particular SOAE. The SOAE magnitudes were suppressed when the cochlear partition was biased in both directions. This quasi-static modulation pattern showed a shape consistent with the first derivative of a sigmoid-shaped nonlinear function. In the time domain, the SOAE amplitudes were modulated with the instantaneous phase of the bias tone. For each biasing cycle, the SOAE envelope showed two peaks each corresponded to a zero-crossing of the bias tone. The temporal modulation patterns varied systematically with the level and frequency of the bias tone. These dynamic behaviors of the SOAEs are consistent with the shifting of the operating point along the nonlinear transducer function of the cochlea. The results suggest that the nonlinearity in cochlear hair cell transduction may be involved in the generation of SOAEs.

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Section: A Spectral Features Of Soaessupporting

confidence: 90%

Section: A Spectral Features Of Soaesmentioning

confidence: 97%

Effects of low-frequency biasing on spontaneous otoacoustic emissions: Amplitude modulation

Bian

Watts

2008

The Journal of the Acoustical Society of America

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“…Many previous studies have reported the characteristics of SSOAEs in adults, children, and neonates [7][8][9][10]. A retrospective study of the frequency distribution of SOAEs in adults and children between 5 and 11 years of age showed that the mature distribution pattern was bimodal [7]. However, the frequency distribution of SOAEs in neonates was not clear, especially during the first 4 days.…”

Section: Introductionmentioning

confidence: 99%

“…The resulting self-sustaining oscillation is also observed in the ear canal as an SOAE [6]. The most direct evidence came from observations of spontaneous cell motility in the organ of Corti [7]. Thus, measurement of SOAEs is a tool that can provide much functional information about the development and maturational changes of the OHCs and cochlea.…”

Section: Introductionmentioning

confidence: 99%

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Frequency distribution of synchronized spontaneous otoacoustic emissions showing sex-dependent differences and asymmetry between ears in 2- to 4-day-old neonates

Liu

Wang

et al. 2009

International Journal of Pediatric Otorhinolaryngology

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The Cambridge Handbook of Phonetics

Hirst

Looze²

2021

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Phonetics - the study and classification of speech sounds - is a major sub-discipline of linguistics. Bringing together a team of internationally renowned phoneticians, this handbook provides comprehensive coverage of the most recent, cutting-edge work in the field, and focuses on the most widely-debated contemporary issues. Chapters are divided into five thematic areas: segmental production, prosodic production, measuring speech, audition and perception, and applications of phonetics. Each chapter presents an historical overview of the area, along with critical issues, current research and advice on the best practice for teaching phonetics to undergraduates. It brings together global perspectives, and includes examples from a wide range of languages, allowing readers to extend their knowledge beyond English. By providing both state-of-the-art research information, and an appreciation of how it can be shared with students, this handbook is essential both for academic phoneticians, and anyone with an interest in this exciting, rapidly developing field.

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A retrospective study of the spectral probability of spontaneous otoacoustic emissions: Rise of octave shifted second mode after infancy

Cited by 12 publications

References 46 publications

Effects of low-frequency biasing on spontaneous otoacoustic emissions: Amplitude modulation

Effects of low-frequency biasing on spontaneous otoacoustic emissions: Amplitude modulation

Frequency distribution of synchronized spontaneous otoacoustic emissions showing sex-dependent differences and asymmetry between ears in 2- to 4-day-old neonates

The Cambridge Handbook of Phonetics

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