title: [Preliminary results of otoacoustic emission measurement and standard values in young subjects with normal hearing. Part II. Measurement of effects of acoustic distortion].
abstract: The paper discusses the results of DPOAE measurement in 44 young subjects with normal hearing capacity. The measurements were carried out separately for each ear (88 measurements altogether). Otoacoustic responses to continuous two-tone stimulation (f1 and f2) with an intensity range of 46-71 dB SPL were recorded. Mean DPOAE values from 2f1-f2 measurement for the right ear in males and females varied from 2.6 +/- 5.6 to1 5.4 +/- 6.9 (within the range 0.7-6.0 kHz). For the left ear the respective values were 3.9 +/- 4.7 to 19.1 +/- 4.0. In most of subjects an increase in DPOAE values for frequencies higher than 3 kHz was found, which is characteristic of middle ear emission. The statistical analysis of DPOAE measurements in males and females did not reveal significant differences except for a few parameters. In both sexes the intensity of f1 and f2 stimuli at the frequency of 1.5 kHz was found to be significantly different at p = 0.48. The results of DPOAE measurements can be regarded as a statistical probability of standard. In view of the lack of approved calibration standards, the data obtained from the study will be considered a local set of standard values and will be used for clinical interpretation of pathological cases.
authors.affiliation: Pracownia Audiologii Instytutu Medycyny Pracy im. prof. dra med. Jerzego Nofera, Lodzi.
authors.forename: S
authors.initials: S
authors.lastname: Kowalska
authors.forename: W
authors.initials: W
authors.lastname: Sułkowski
authors.forename: Z
authors.initials: Z
authors.lastname: Murowaniecki
mesh_terms: D000293:Adolescent; D000328:Adult; D004432:Ear, Middle / Q000502:physiology*; D004558:Electric Stimulation; D005260:Female; D007839:Functional Laterality; D006309:Hearing / Q000502:physiology*; D006311:Hearing Disorders / Q000175:diagnosis*; D006801:Humans; D008297:Male
vernacular_title: Wstepne wyniki oceny pomiarów otoemisji akustycznej i wartości normatywne u młodych, otologicznie zdrowych osób. Cześć II: Pomiary efektu zniekształceń akustycznych.