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Object-centered reference systems and human spatial memory
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DOI：10.3758/s13423-011-0134-5.png)
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Abstract
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The present study investigated the role of object-centered reference systems in memories of objects' locations. Participants committed to memory the locations and orientations of either 11 human avatars (Experiment 1) or 11 animal models (Experiment 2) displayed in a desktop virtual environment and then completed judgments of relative directions, in which they pointed to objects from imagined vantage points corresponding to the locations of the objects. Results showed that, with avatars, performance was better when the imagined heading was congruent with the facing direction of the avatar located at the imagined vantage point. With animal models, no such facilitation was found. For both types of stimuli, performance was better for the learning view than for the novel 135 view. Results demonstrate that memories of the locations of objects are affected by object-centered reference systems and are consistent with conjectures that spatial memories are hierarchies of spatial reference systems, with higher levels corresponding to larger scales of space.
Keywords:
Spatial memory
Spatial reference systems
Object-centered reference systems
Virtual environment
Judgments of relative direction
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