A Study on Finger Friction Test
1994 Volume 37 Issue 4 Pages 322-329
Details
1994 Volume 37 Issue 4 Pages 322-329
A comparative study on the results with finger friction test and pure tone audiometry was undertaken on 77 patients (120 ears) at the ages of 3 to 32 years.
The results obtained were as follows.
1) If successive rubbing noise produced by a dry index finger and a thumb could not be heard in 50-60cm apart, about 30dB hearing loss at 1000-2000Hz or above without masking could be detected by the examiners. Therefore, it was considered that the finger friction test was available for detecting presbycusis.
2) The examiner should confirm that his finger rubbing noise have a property that it's sound pressure increase as the frequency become high, because the noises showed individual difference in frequency property.
