Abstract
Recent years have seen the development of video game machines in which players synchronize with music created by the machines. A typical example is one in which the player beats a drum according to a rhythm. This game machine then converts the operation and music into a synchronized score. However, when video and sound are given to a player simultaneously, the player s response is not clear. In an effort to solve this problem, we measure and investigate the response of the people given visual and auditory stimuli using equipment that imitates the game machine. In this paper, we measure and consider the effect when visual stimuli change at various velocities and the fluctuation of player response time. The results confirm that there is an optimal value for players at which the display speed of the visual stimuli changes. Furthermore, when the speed of change is not extremely low, there is no significant difference observed in the auditory stimulus. Moreover, when the speed of change in the visual stimuli is extremely slow, the accuracy of positioning greatly improves.
