An evaluation of spatial memory based on human performance

This paper proposes the spatial memory which aids human activity in a working environment. The spatial memory regards three-dimensional space as mass storage of computers, i.e. three-dimensional point is treated as an address of stored knowledge such as various documents, images and commands for machines. Consequently, we can access a stored knowledge by indicating the point using our own arms, which we named "human indicator". In this paper, we implement a prototype of the spatial memory system which is supposed to be utilized for a desk work. The implemented system is evaluated from the viewpoint of human performances.