骨導閾値測定法に関する研究補遺

概要

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To obtainn more correct method of the measurement of the bone conduction threshold, the anthor attempted experiments considering many factors, which had influence on the bone conduction threaholds. Following results were obtained : 1. The automatic interrupted descending method for testing tone was- statistically most appropriate. For non-interrupted method, the asscending method should be employed. For the interrupted method, descending method should be employed from the statistical stand point.2. Bone conduction thresholds of the normal ear is not influenced by the change of measuring order of the frequencies, but in the case of the perceptive deafness, the test should started from the low frequency tones.3. When the bone conduction vibrator is used on the mastoid or forehead, the location whichever of the vibrator should be individually selected in each case because there are advantages and disadvantages in each location. It is important to Keep the constant pressure to the vibrator.4. Sensitivity for the bone conduction is higher in those with poorly developed mastoid cells than those with well developed mastoid cells, theoretically and experimentally.
一般社団法人日本耳鼻咽喉科学会の論文