聴覚の時間分解能 : 周波数と時間分析チャンネルのギャップ検知への影響

抄録

Temporal resolution of normal hearing listeners was investigated in a gapdetection paradigm. Temporal gap detection thresholds were determined for bandpass noise signals as a function of center frequency under a fixed bandwidth or a fixed ratio of bandwidth per its center frequency. Detection performance did not improve with increasing center fixed bandwidth. However, if did improve significangly with increasing center frequency under a fixed ratio of bandwidth to center frequency. As a next step, gap detection thresholds were measuredfor bandpass noise signals in which the number and it were changed. The result indicates that gap detection performance is determined by them. These results agree with previous findings where a bandpass noise or a complex tone was used as a signal.