title: Repeatability of transiently evoked otoacoustic emissions in normally hearing humans.
abstract: Transiently evoked otoacoustic emissions (TEOAEs) were stimulated using clicks. Responses were measured in each ear of 10 adult subjects during three test sessions separated by 3-day intervals. The purpose was to determine the amount of short-term variability in the amplitude of the emissions when measured under similar test conditions. For each of two modes of determining the stimulus level, mean overall response levels varied approximately 1 dB with repeated measurements. The spectra of the responses were analyzed in discrete frequency bands from 0.7 to 5.8 kHz. Response energy peaked at 1.2 kHz and was reduced markedly above 4 kHz. Variability within individual spectral bands was approximately 1 dB from 0.9 to 4.1 kHz and was slightly greater for 0.7 kHz. The amplitude of TEOAEs is stable over successive short-term measurements. The technique can be used as a sensitive means of monitoring cochlear function.
authors.affiliation: HNO-Universitätsklinik, Kantonsspital Basel, Schweiz.
authors.forename: F P
authors.initials: FP
authors.lastname: Harris
authors.forename: R
authors.initials: R
authors.lastname: Probst
authors.forename: R
authors.initials: R
authors.lastname: Wenger
mesh_terms: D000328:Adult; D001309:Auditory Threshold / Q000502:physiology; D003055:Cochlear Microphonic Potentials / Q000502:physiology*; D005260:Female; D006198:Hair Cells, Auditory / Q000502:physiology*; D006309:Hearing / Q000502:physiology*; D006801:Humans; D008297:Male; D012016:Reference Values