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The World Is Not Flat: Can People Reorient Using Slope?, Daniele Nardi, Nora S. Newcombe, Thomas F. Shipley
The World Is Not Flat: Can People Reorient Using Slope?, Daniele Nardi, Nora S. Newcombe, Thomas F. Shipley
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Studies of spatial representation generally focus on flat environments and visual input. However, the world is not flat, and slopes are part of most natural environments. In a series of 4 experiments, we examined whether humans can use a slope as a source of allocentric, directional information for reorientation. A target was hidden in a corner of a square, featureless enclosure tilted at a 5° angle. Finding it required using the vestibular, kinesthetic, and visual cues associated with the slope gradient. In Experiment 1, the overall sample performed above chance, showing that slope is sufficient for reorientation in a real …