Abstract
This paper demonstrates human weight perception for sudden weight changes during a lifting process. It is well known that human motion has an unimodal velocity profile including the acceleration and deceleration zones in a reaching task, which has a start and the goal points. This study attempts to reveal the difference of human weight perceptions between two zones by giving some magnitudes of weight changes with a force display device; especially, we investigate the difference threshold (DL: Differenz Limen) in the weight perception. The results show that human weigh perception tends to become more sensitive in the deceleration zone. Further, this paper shows the effectiveness of virtual reality technologies for physical experiments.
