Distortion of auditory space during the exposure of large-field visual motion

自我运动感知是基于来自各种感觉模态（诸如视觉、前庭和本体感受系统）的输入而建立的。本研究探讨了视觉诱导的自我运动知觉对听觉空间知觉的影响。结果表明，在自我运动知觉过程中，听觉空间的畸变具有任务依赖性和空间依赖性。在额叶空间，当被试在指向任务中感知到自我运动时，声音的感知位置发生了几度的偏移，而在探测任务中没有。在后方空间，另一方面，感知的位置的声音被转移时，被试认为是自我运动与探测任务。任务依赖性的额叶空间的失真表明，自我运动信息的效果不同，这取决于听觉空间表征（自我中心和allocentric表征的空间）。前后空间的差异可能反映了视觉形态的空间表征效果，但需要进一步的研究来阐明细节。

Self-motion perception is established based on inputs from various sensory modalities such as the visual, vestibular and proprioceptive systems. The present study investigated the effect of visually induced self-motion perception on auditory space perception. The results showed the task- and space-dependent distortions of auditory space during self-motion perception. In the frontal space, the perceived position of a sound was shifted leftward in a few degrees when participants perceived rightward self-motion with pointing tasks, but not with probe tasks. In the rear space, on the other hand, the perceived position of a sound was shifted rightward when participants perceived rightward self-motion with probe tasks. The task dependent distortion of the frontal space suggests the effect of self-motion information differs depending on auditory space representation (egocentric and allocentric representations of space). The difference between front and rear spaces might reflect the effect of the space representation of the visual modality, but further research is necessary to elucidate the details.