每周论坛之六（总第187期）：赵怀永（德国凯泽斯劳腾科技大学），2018年10月29日下午

每周论坛之六（总第187期）

报告人：赵怀永 博士

报告人单位：德国凯泽斯劳腾科技大学

题目：The visual control of locomotor interception: How do people steer a car to intercept a moving target?

时间：2018年10月29日 （周一，14:20-16:00）

地点：中山大学东校园心理学系（南学院楼C座）305

报告简介：

Locomotor interception of a moving target is challenging because actors need to coordinate their movement with the target’s movement. How is locomotor interception visually guided? According to pursuit strategy, the actor directly moves toward the current location of the target; according to constant target-heading strategy, the actor moves about so as to keep the target in a constant direction relative to the heading direction; according to constant bearing strategy, the actor keeps the target in a constant direction relative to an allocentric reference axis. In addition, it has been proposed that interception tasks could be guided based on prediction of the target’s trajectory, actors’ predictive eye movements are usually regarded as evidence of this prediction- or model-based control. In spite of numerous empirical investigations, it is still unclear how people perform locomotor interception. To tackle this question, we devised a car-steering task in virtual environments, manipulated the availability of visual information about allocentric reference frames, and examined participants’ steering and eye movements. We did not find any obvious pattern of predictive eye movements. The results indicate that locomotor interception is better explained by the constant target-heading strategy based on current visual information.

报告人简介：

       赵怀永，男，认知科学专业哲学博士，德国凯泽斯劳腾科技大学博士后学者及授课教师。研究兴趣：应用虚拟现实研究人类运动的视觉控制。