Two Perspective Systems Using a Route as a Reference Object

This paper discusses the spatial configuration between objects and a route which an agent follows according to instructions in a navigation task. We claim that a route can be regarded as a reference object and thereby two types of perspective system are defined; the route-centered perspective system and the position-centered perspective system. The route-centered perspective system is presented to partition a space by regarding a route as a boundary line. The position-centered perspective system is introduced to determine the spatial configuration between objects and the positions on the route. These perspective systems can explain the human mental mechanism of the dialogue.