Soto-Faraco Salvador, Spence Charles, Kingstone Alan
Universitat de Barcelona, Barcelona, Spain.
Cogn Affect Behav Neurosci. 2004 Jun;4(2):208-17. doi: 10.3758/cabn.4.2.208.
Behavioral studies of multisensory integration in motion perception have focused on the particular case of visual and auditory signals. Here, we addressed a new case: audition and touch. In Experiment 1, we tested the effects of an apparent motion stream presented in an irrelevant modality (audition or touch) on the perception of apparent motion streams in the other modality (touch or audition, respectively). We found significant congruency effects (lower performance when the direction of motion in the irrelevant modality was incongruent with the direction of the target) for the two possible modality combinations. This congruency effect was asymmetrical, with tactile motion distractors having a stronger influence on auditory motion perception than vice versa In Experiment 2, we used auditory motion targets and tactile motion distractors while participants adopted one of two possible postures: arms uncrossed or arms crossed. The effects of tactile motion on auditory motion judgments were replicated in the arms-uncrossed posture, but they dissipated in the arms-crossed posture. The implications of these results are discussed in light of current findings regarding the representation of tactile and auditory space.
运动感知中多感官整合的行为研究主要集中在视觉和听觉信号的特定情况。在此，我们探讨了一个新的情况：听觉与触觉。在实验1中，我们测试了以不相关模态（听觉或触觉）呈现的表观运动流对另一模态（分别为触觉或听觉）中表观运动流感知的影响。对于两种可能的模态组合，我们均发现了显著的一致性效应（当不相关模态中的运动方向与目标方向不一致时，表现较低）。这种一致性效应是不对称的，触觉运动干扰物对听觉运动感知的影响强于反之。在实验2中，当参与者采用两种可能姿势之一：双臂不交叉或双臂交叉时，我们使用了听觉运动目标和触觉运动干扰物。触觉运动对听觉运动判断的影响在双臂不交叉姿势中得到了重复，但在双臂交叉姿势中消失了。我们根据当前关于触觉和听觉空间表征的研究结果讨论了这些结果的意义。
