title: Spontaneous otoacoustic emissions from normal human ears. Preliminary report.
abstract: The present paper resumes the results obtained from measurement of spontaneous otoacoustic emissions (SOAEs), in terms of rate of occurrence, frequency spectrum and intra- and intersubjective variability in 104 normal ears (52 subjects). SOAEs have been detected in 27 ears (26.0%) and in 16 subjects (30.8%); bilateral SOAEs have been observed in 11 subjects (68.8%). Frequencies of the strongest emissions ranged from 1 to 2 kHz (96.3%); amplitudes varied from 3 to 20 dB SPL above the background noise. Spectra were always very sharp and stable in frequency, less in amplitude. Present results agree well with the data available in literature.
authors.forename: G
authors.initials: G
authors.lastname: Cianfrone
authors.forename: M
authors.initials: M
authors.lastname: Mattia
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D003051:Cochlea / Q000502:physiology*; D004424:Ear Canal / Q000502:physiology; D004558:Electric Stimulation; D005260:Female; D006801:Humans; D008297:Male; D011312:Pressure; D012016:Reference Values