Investigation of the influence of human upper limb movement on visual/force illusion

在本研究中，使用实时多摄像机系统对真实环境中的尺寸-体重错觉进行了测量。计算了瓶子的举升高度、速度和加速度，并分析了运动信息与错觉发生率之间的有趣关系。在举重实验中，被试用幅度估计法评估了他们对举重的知觉。根据受试者的评价结果计算心理测量学和心理物理量函数。对实验条件下的心理测量函数斜率和通道特征指数进行了定量分析。结果表明，这些量随提升高度的增加而成比例增加。本研究的结果表明，人体的体重感知与上肢的运动密切相关。

In this study, measurements of size-weight illusion in real environment have been made with using a real time multi-camera system. Results of the lifting height, velocity and acceleration of the bottles are computed and an interesting relationship between the motion information and the rate of illusion occurrence are analyzed. In the weight lifting experiments, subjects evaluated their perceptions of the lifted weight by the magnitude estimation method. Psychometric and psychophysical magnitude functions were computed according to subject's evaluation results. The slope of the psychometric function and the modality characteristic exponent were quantitatively analyzed for our experimental conditions. The results indicate that these quantities increase proportionally to lifting height. The results of this study demonstrate that weight perception in human is closely related to the motion of the upper limb.