1977 年 33 巻 3 号 p. 136-143
Everybody knows that one will suddenly fall into misjudgment in sequential item recognition, when the sequence such as music or speech comes at a too rapid rate. The author named the threshold of such rate the "critical rate for identification(C. R. I. ). , and studied several factors which affect the critical rate, by means of Warren-type experiments. The results show that kind of sound, number of classifying categories, silent interval between items, and similarity between sequential items each affect the C. R. I. . On the basis of the results, the relations between auditory fusion and auditory stream segregation and the C. R. I. are discussed, and auditory information processing rates are estimated from these C. R. I data.