Analysis of spontaneous and click-evoked otoacoustic emissions in newborns.
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.
Ravazzani
P
P
Centro di Ingegneria Biomedica CNR, Milan, Italy. ravazzani@biomed.polimi.it
Tognola
G
G
Sergi
P
P
Pastorino
G C
GC
Grandori
F
F
D005163:Factor Analysis, Statistical; D006311:Hearing Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D015997:Neonatal Screening; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology*; D013997:Time Factors