Method of Universal Audiological Screening of Newborns
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Abstract
The article presents the new technique of screening of hearing of newborns on the basis of the following results of a research of hearing: the formula for the parameter of a norm of a middle ear – a condition of optimization of its acoustic - mechanical system on a bandpass range maximum in the speech range of the frequencies of 500-4000 Hz, an ear invariant, the dimensionless parameter of a norm of its status is received; the special place of a sound "and" in hearing - speech system of the person is set; it is revealed congenital defect of a middle ear and its communication with the mutated gene of WFS1 which and proteins of this sort are synthesized in very small amounts in an inner ear; the location of a sensor of an acoustic reflex on an eardrum and its role in protection of acoustical cents of a brain against a sound of big intensity is revealed; it is measured by means of a multifrequency tympanometer value of "slot" (~41 dB) between audiograms of air and bone conductivity in case of final fracture of a circuit of acoustical stones; the formula of time-and-frequency dependence of called otoacoustic emission is open and parameters of a norm of a snail are determined that does otoacoustic emission effective the express - method of objective differential diagnostics of hearing, especially at newborns; it is set that division of an audio spectrum into the frequency integrating groups, the representing one of the most important properties of hearing, occurs in a snail of an inner ear, but not in sensorineural system as it was read earlier (it has basic value for individual preference of hearing aids and optimum coding of a sound in a cochlear implant); it is shown that the form of an incentive of called otoacoustic emission in outside acoustical pass has an appearance of impulse function of a middle ear, but not short (broadband) sound pulse, as in case of submission in the "gauge" camera with rigid walls; it is set that amplitude of called otoacoustic emission characterizes a status of a middle ear, and it is frequency - temporal dependence – snails of an inner ear.
Ref. 16, fig. 3.
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