An Experimental Study on the Formation of Spatial Cognitive Maps in Humans

This study investigated how cognitive maps of the environment are formed. During learning trials, participants encoded the spatial locations of objects in a virtual maze either through simulated movement within the maze (first-person perspective) or by inspecting a schematic map (survey perspective). During interleaved test trials, they indicated where the object were on a schematic map (survey perspective). Response accuracy, averaged across objects and participants, increased gradually across test trials. At the level of individual participants and objects, however, accuracy improved abruptly. Furthermore, response accuracy was unaffected by the number of encoded objects used. Notably, the speed of map formation and the absence of a set-size effect were comparable across the two encoding perspectives, despite the fact that first-person encoding required transformation into a survey perspective for testing. Unlike the speed, the accuracy was lower in the first-person perspective compared to the survey encoding perspective. These findings suggest that cognitive maps can be holistic rather than item-dependent representations that emerge in a locally abrupt fashion, regardless of the encoding perspective. In contrast to the emergence speed, map accuracy can be lower when the encoding perspective differs from the test perspective.