Test method for auditory recognition sensitivity

Abstract

The invention discloses a method for testing audio identification sensitivity. The method includes the steps of S1, determining testing frequency, to be more specific, selecting testing frequency according to actual operation needs; S2, determining optimal identification sensitivity duration, to be more specific, using the selected testing frequency to perform a regular pure tone test to obtain aconventional hearing threshold; using the conventional hearing threshold to perform a stimulation duration test to obtain the optimal identification sensitivity duration; S3, determining optimal identification sensitivity sound intensity, to be more specific, using the testing frequency and the optimal identification sensitivity duration as the test parameters, the conventional hearing threshold as the center and the optimal identification sensitivity sound intensity as the testing step to perform testing to obtain the optimal identification sensitivity sound intensity. The method testing theaudio identification sensitivity by changing stimulation sound intensity and duration has the advantages that other audiology examinations are performed after the identification sensitivity of a testsubject to the sound intensity and duration, the method provides more test bases for the subsequent examinations, and examination result accuracy and reliability are achieved.

Description

technical field [0001] The invention relates to the field of human ear hearing test, in particular to a test method for auditory recognition sensitivity. Background technique [0002] The hearing process of the human ear is a complex physiological process, which is directly related to the mechanical structure of the human ear and the characteristics of the auditory nervous system. The ability of the human ear to judge small changes in parameters such as sound pressure, time course, frequency and orientation is called hearing. Identify sensitivity. [0003] The human ear can withstand the strongest sound in nature, sometimes as high as 2×103-2×104Pa, and can also feel extremely small sounds, such as 2×10-5Pa, which is only one-fiftieth of an atmospheric pressure. When this extremely small sound pressure is at 1kc, the human eardrum only produces a displacement of 10-9cm, which is less than one-tenth of the diameter of hydrogen molecules. When the sound pressure changes, the...

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Problems solved by technology

[0004] The human ear is also sensitive to the time course of sound stimulation, and can recognize the sound with the shortest duration of 100ms. At about 300ms, the hair cells that feel the sound of this frequency can be saturated, and then as the stimulation time course increases, the human ear will gradually respond to the sound. Sound production adaptation, possibly reduced sensitivity to sound intensity recognition

[0005] Taking pure tone audiometry as an example, this method is currently the most commonly used method for testing the hearing state of the human ear. The parameters selected during the test are almost uniform. However, in clinical phenomena, it is found that different people have great differences in the auditory recognition sensitivity to sound. For example, people with completely normal hearing have very good auditory recognition sensitivity. Accurate responses can be made with long-term sound stimulation. If the stimulation time is too long, it will easily cause auditory fatigue. People with severe hearing impairment may have poor auditory recognition sensitivity, and the choice of time course and intensity is different from ordinary people. It can be seen that, Performing audiological examinations such as pure tone audiometry without measuring and evaluating the individual's auditory recognition sensitivity may cause large errors

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