Craig James C
Department of Psychology, Indiana University, Bloomington, IN 47405, USA.
Perception. 2006;35(3):351-67. doi: 10.1068/p5334.
Previous studies have demonstrated that visual apparent motion can alter the judgment of auditory apparent motion. We investigated the effect of visual apparent motion on judgments of the direction of tactile apparent motion. When visual motion was presented at the same time as, but in a direction opposite to, tactile motion, accuracy in judging the direction of tactile apparent motion was substantially reduced. This reduction in performance is referred to as 'the congruency effect'. Similar effects were observed when the visual display was placed either near to the tactile display or at some distance from the tactile display (experiment 1). In experiment 2, the relative alignment between the visual and tactile directions of motion was varied. The size of the congruency effect was similar at 0 degrees and 45 degrees alignments but much reduced at a 90 degrees alignment. In experiment 3, subjects made confidence ratings of their judgments of the direction of the tactile motion. The results indicated that the congruency effect was not due to subjects being unsure of the direction of motion and being forced to guess. In experiment 4, static visual stimuli were shown to have no effect on the judgments of direction of the tactile stimuli. The extent to which the congruency effect reflects capture effects and is the result of perceptual versus post-perceptual processes is discussed.
先前的研究表明，视觉上的表观运动可以改变听觉表观运动的判断。我们研究了视觉表观运动对触觉表观运动方向判断的影响。当视觉运动与触觉运动同时呈现，但方向相反时，判断触觉表观运动方向的准确性会大幅降低。这种表现的降低被称为“一致性效应”。当视觉显示放置在靠近触觉显示或与触觉显示有一定距离处时，也观察到了类似的效应（实验1）。在实验2中，改变了视觉和触觉运动方向之间的相对对齐方式。在0度和45度对齐时，一致性效应的大小相似，但在90度对齐时大幅减小。在实验3中，受试者对他们对触觉运动方向的判断进行了信心评级。结果表明，一致性效应并非由于受试者不确定运动方向并被迫猜测。在实验4中，静态视觉刺激对触觉刺激方向的判断没有影响。本文讨论了一致性效应在多大程度上反映了捕获效应，以及它是感知过程还是感知后过程的结果。
