Umemura Hiroyuki, Iwaki Sunao
Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology, Kashiwa, Japan.
Human Informatics and Interaction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan.
Front Hum Neurosci. 2025 Mar 11;19:1550231. doi: 10.3389/fnhum.2025.1550231. eCollection 2025.
In this study, we investigate the influence of causality validity in the information provided to each of two sensory modalities on the integration of multisensory information. For the purpose, stimuli that simulated a causal event, a ball striking an object, were created using a head-mounted display and a haptic device. The visual position and motion of the object were aligned to the haptic feedback received by the observer. The haptic device delivered a vibration around the moment of impact. Three vibration directions were used to assess the effect of the validity of the causal relationship between the two events. Participants were asked to determine whether the collision of the ball and the vibration were simultaneous. The findings revealed that the participants were more likely to perceive the events as simultaneous when the direction of the vibration matched the ball's movement. These results suggest that valid causal consistency across different modalities enhances the binding of these signals as originating from a single source.
在本研究中，我们调查了提供给两种感觉模态中每一种的信息中的因果有效性对多感觉信息整合的影响。为此，使用头戴式显示器和触觉设备创建了模拟因果事件（一个球撞击物体）的刺激。物体的视觉位置和运动与观察者接收到的触觉反馈对齐。触觉设备在撞击时刻周围传递振动。使用三个振动方向来评估两个事件之间因果关系有效性的影响。参与者被要求确定球的碰撞和振动是否同时发生。研究结果表明，当振动方向与球的运动相匹配时，参与者更有可能将这些事件感知为同时发生。这些结果表明，不同模态间有效的因果一致性增强了这些信号作为来自单一来源的绑定。
