Chen Lihan, Zhou Xiaolin
Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing 100871, China.
Seeing Perceiving. 2011;24(4):369-89. doi: 10.1163/187847511X584434.
Apparent motion can occur within a particular modality or between modalities, in which a visual or tactile stimulus at one location is perceived as moving towards the location of the subsequent tactile or visual stimulus. Intramodal apparent motion has been shown to be affected or 'captured' by information from another, task-irrelevant modality, as in spatial or temporal ventriloquism. Here we investigate whether and how intermodal apparent motion is affected by motion direction cues or temporal interval information from a third modality. We demonstrated that both moving and asynchronous static sounds can capture intermodal (visual-tactile and tactile-visual) apparent motion; moreover, while the auditory direction cues have less impact upon the perception of intramodal visual apparent motion than upon the perception of intramodal tactile or intermodal visual/tactile apparent motion, the auditory temporal information has equivalent impacts upon both intramodal and intermodal apparent motion. These findings suggest intermodal apparent motion is susceptible to the influence of dynamic or static auditory information in similar ways as intramodal visual or tactile apparent motion.
似动现象可以在特定感觉通道内发生，也可以在不同感觉通道之间发生，即一个位置的视觉或触觉刺激被感知为朝着随后的触觉或视觉刺激的位置移动。模态内似动现象已被证明会受到来自另一个与任务无关的感觉通道的信息的影响或“捕获”，如空间或时间上的腹语术。在这里，我们研究跨模态似动现象是否以及如何受到来自第三种感觉通道的运动方向线索或时间间隔信息的影响。我们证明，移动的和异步的静态声音都可以捕获跨模态（视觉-触觉和触觉-视觉）似动现象；此外，虽然听觉方向线索对模态内视觉似动现象感知的影响小于对模态内触觉或跨模态视觉/触觉似动现象感知的影响，但听觉时间信息对模态内和跨模态似动现象的影响是等同的。这些发现表明，跨模态似动现象与模态内视觉或触觉似动现象一样，容易受到动态或静态听觉信息的影响。
