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Updated: Oct 8, 2026

Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
Analysis of spontaneous and click-evoked otoacoustic emissions in newborns
P Ravazzani1, G Tognola, P Sergi
1Centro di Ingegneria Biomedica CNR, Milan, Italy. ravazzani@biomed.polimi.it
Abstract:
This paper addresses the quantitative investigation of the contribution of spontaneous (SOAE) to click-evoked (TEOAE) otoacoustic emissions in newborns. The hypothesis was that a weighted linear combination of the spontaneous peaks is strongly similar to the corresponding click-evoked emissions. After identification of the main spontaneous peaks for each subject, a best fit procedure was applied to find the amplitude and phase of each spontaneous tone in the weighted summation. The comparison of the weighted signal (SpTEOAE) with the actual click-evoked response (TEOAE) from the same subject was performed, obtaining correlation coefficient higher than 50% in more than 100 ears over 132.
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