Luscher test

Luscher test (that is, Luscher) - method study the function of hearing largest differential (difference) threshold of perception of sound power with the help of modulation. Under differential threshold of perception of sound power understand the minimal oscillation intensity sound, evoking a feeling of change in its volume. For normal-size differential threshold tone to 1000 Hz intensity at 40 dB above the threshold accept 0,9-1,5 dB. Reducing this value indicates the presence of the phenomenon of the acceleration of growth of the volume, which is observed in violation of the functions of the hair cells kortieva body, but not if retackling lesions and disorders of zvukoprovodnost.
This makes the test Luscher along with other methods of definition of the phenomenon of the acceleration of growth of volume of an important method of differential diagnosis of hearing impairment. Test Luscher can find application both at the unilateral and bilateral loss of hearing (see).