Distortion-product otoacoustic-emission suppression tuning in human infants and adults using absorbed sound power | Zendy

Douglas H. Keefe | Zendy; Carolina Abdala | Zendy

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Distortion-product otoacoustic-emission suppression tuning in human infants and adults using absorbed sound power

Author(s) -

Douglas H. Keefe,

Carolina Abdala

Publication year - 2011

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3553389

Subject(s) - otoacoustic emission , acoustics , audiology , ear canal , sound pressure , sound power , stimulus (psychology) , physics , mathematics , medicine , sound (geography) , psychology , hearing loss , psychotherapist

The greatest difference in distortion product otoacoustic emission (DPOAE) suppression tuning curves (STCs) in infant and adult ears occurs at a stimulus frequency of 6 kHz. These infant and adult STCs are much more similar when constructed using the absorbed power level of the stimulus and suppressor tones rather than using sound pressure level. This procedure incorporates age-related differences in forward and reverse transmission of sound power through the ear canal and middle ear. These results support the theory that the cochlear mechanics underlying DPOAE suppression are substantially mature in full-term infants.

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