聴知覚における順応水準に関する予備的研究 : 音の高さ・協和の知覚に及ぼす順応の効果 : 情報ディスプレイ視聴覚技術画像通信システム(<特集>視覚と画質特集)

抄録

Two experiments were planned to determine the adaptation effect on auditory perception. In the Experiment 1,the adaptation effect on the pitch perception was measure(L As a result, typical adaptation effects were found.In the Experiment 2, experiment on adaptation to the theoretically dissonant intervals were conducted in order to determine whether the increasing frequency of presentation of the " dissonant" intervals makes them perceptually consonant or not. The theoretically dissonant interval was presented to the subjects three time s as many as other intervals in the series stimuli. As the results of adaptation, the judged consonance of major 7th increased prominently in the course of session. Two modes of the modification were observed: (1) the selective increase in judgements of adapted interval ; and (2) the global shift over the judgements of the series stimuli.