耳鳴のピッチマッチ法の精度に関する検討

概要

論文の詳細を見る
Pitch match test is commonly used as a clinical measurement for tinnitus. It is, however, unknown how precisely the patients' estimated pitch by this technique represent their actual pitch of tinnitus. In order to examine the precision of this technique, we made an experiment using tinnitus simulation. The subjects were 14 normal hearing adults without tinnitus, each of whom was presented by continuous simulated tinnitus sound (STS) to one ear and pitch match test was performed under 13 experimental conditions. The results were as follows; 1) The mean error was less than one octave except in one condition where STS of narrow band noise was matched by pure tone. 2) When the tone of STS differed from the test sound, the errors of measurement increased. 3) There was no significant difference between the results of ipsilateral and contralateral matching tests. 4) The differences of loudness and pitch of STS did not affect the results of pitch match test. 5) No significant difference was found between the results when using discrete test sounds presented by a conventional pure tone audiometer and using continuous test sounds by an automatic audiometer.
耳鼻と臨床会の論文