Getzmann Stephan
Leibniz Research Centre for Working Environment and Human Factors, Ardeystrasse, Dortmund, Germany.
J Exp Psychol Hum Percept Perform. 2009 Feb;35(1):289-304. doi: 10.1037/a0013026.
Sensory saltation is a spatiotemporal illusion in which the judged positions of stimuli are shifted toward subsequent stimuli that follow closely in time. So far, studies on saltation in the auditory domain have usually employed subjective rating techniques, making it difficult to exactly quantify the extent of saltation. In this study, temporal and spatial properties of auditory saltation were investigated using the "reduced-rabbit" paradigm and a direct-location method. In 3 experiments, listeners judged the position of the 2nd sound within sequences of 3 short sounds by using a hand pointer. When the delay between the 2nd and 3rd sound was short, the target sound was shifted toward the subsequent sound. The magnitude of displacement increased when the temporal and spatial distance between the sounds was reduced. In a 4th experiment, a modified reduced-rabbit paradigm was used to test the hypothesis that auditory saltation is associated with an impairment of target sound localization. The findings are discussed with regard to a spatiotemporal integration approach in which the processing of auditory information is combined with information from subsequent stimuli.
感觉跳跃是一种时空错觉，即刺激的判断位置会朝着紧随其后的刺激方向偏移。到目前为止，对听觉领域跳跃现象的研究通常采用主观评分技术，这使得难以精确量化跳跃的程度。在本研究中，使用“简化兔子”范式和直接定位方法研究了听觉跳跃的时间和空间特性。在3个实验中，听众使用手持指针判断3个短音序列中第二个声音的位置。当第二个和第三个声音之间的延迟较短时，目标声音会朝着后续声音偏移。当声音之间的时间和空间距离减小时，位移幅度会增加。在第4个实验中，使用改良的简化兔子范式来检验听觉跳跃与目标声音定位受损相关的假设。结合时空整合方法对研究结果进行了讨论，在该方法中，听觉信息的处理与来自后续刺激的信息相结合。
