条件詮索反射聴力測定法(COR-audiometry)の改良に関する研究*
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概要
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Since the first report of conditioned orientation reflex audiometry (COR audiometry) by Suzuki mined from various aspects. However, the results ometry was frequently found to be unreliable in children with asymmetric hearing losses including lity of COR audiometry seem to lie in the facts that (1), for the children with asymmetric hearing losses or monaural deafness, the orientation to the direction of the sound stimulation is rather difficult and sometimes wholly impossible; (2) their heaing thresholds can vary according to the direction of the stimulus. From these standpoints, a modified procedure of COR audiometry for children with asymmetric hearing losses was devised. In this method, sound stimulus and light stimulus were given separately. For example, sound stimulus was given from the right side and then the light stimulus was given from the left. Contrary to the generally accepted ward the source of the sound stimulus, was evoked distinctly and steadily even when the intensity of the sound stimuls was decreased near the threshold of the subjects. The light stimulus, in this case, may play the part of the supporter to the subjects attention toward the sound stimulus. The application of this modified method to children with normal hearing revealed that the thod were almost the same as those obtained from the original method. As the modified method does licable to the children with asymmetric hearing losses or monaural deafness. The paper also covers the detailed description of the practice of this method to 12 cases with asymmetric hearing disorders.
- 社団法人 日本耳鼻咽喉科学会の論文