Occupying the same location and occurring at the same time are the essential spatial and temporal factors for different features of a natural event or object to be integrated. Audio-visual temporal recalibration, as a temporal integration mechanism, refers to the brain's capacity to perceive simultaneity by adjusting for differential delays in the transmission of auditory and visual signals. Co-localization of auditory and visual information, however, is found not to be necessary for audio-visual temporal recalibration to occur. Here, we show that after exposure to a time lag between a visual flash and a visual collision, simultaneity responses were shifted toward an adapt lag in a bound condition where the flash and collision belonged to the same object but not in a separate condition where the flash and collision belonged to spatially separated objects. The results demonstrate that location-based binding is a requisite for temporal recalibration within the visual modality. Our finding suggests that the brain takes the modality difference in object localization into consideration when integrating temporally asynchronous signals.

占据相同位置并同时发生是对于要整合的自然事件或物体的不同特征而言必不可少的时空因素。视听时间重新校准是一种时间整合机制，是指大脑通过调节听觉和视觉信号的传输中的延迟差异来感知同时性的能力。然而，发现听觉和视觉信息的共定位对于发生视听时间重新校准不是必需的。在这里，我们展示了暴露于视觉闪光和视觉碰撞之间的时间间隔之后，在闪光灯和碰撞属于同一物体的约束条件下，同时响应向适应滞后移动，但在闪光灯和碰撞属于空间分离的物体的单独条件下，同步响应则向适应滞后移动。结果表明，基于位置的绑定是视觉模态中时间重新校准的必要条件。我们的发现表明，在整合时间异步信号时，大脑会考虑对象定位的模态差异。