ИСТИНА

It has been proposed the existence of two types of spatial representations to successfully code the localization of objects: egocentric and allocentric. The first one specifies spatial information with respect to the observer’s position and the second – to relative positions between objects. In our study we investigated the accuracy of both spatial representations using the CAVE virtual reality technology. Six virtual scenes were constructed consisted of 7 objects located in different 3D positions. The participant’s task was to remember the scene and then to reproduce objects in a virtual space from three imagined viewer’s positions: 1) the front view (as if they would view the scene from the original view point), 2) the left one (the scene viewed from the left) and 3) the above one (viewed from above). To complete the task the participants chose objects from the object’s library and located them in a virtual space using flystik. During the execution object’s coordinates were recorded. The accuracy of identification and localization was calculated for each of three imagined viewer’s positions. The results showed the egocentric representations (the front view) were more accurate than allocentric ones (left and above views) and the representations “the left” were less accurate than “the above” ones. The study was funded by Russian Scientific Fund project № 15-18-00109.