Boundaries in Spatial Cognition: Looking like a Boundary is More Important than Being a Boundary
Boundaries in Spatial Cognition: Looking like a Boundary is More Important than Being a Boundary
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空间认知中的边界：看起来像边界比本身是边界更重要
DOI：
10.1101/391037
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Negen J
中科院分区：
文献类型：
--
作者：
Negen J
大型墙壁和其他典型的边界强烈影响与导航和空间布局表征相关的神经活动。它们也是幼儿和非人类动物可靠导航行为的主要辅助工具。这是因为它们是物理边界（移动的障碍），还是因为它们呈现了某些视觉特征，例如视觉上扩展的3D表面？在这里，这两个因素被分离，通过使用沉浸式虚拟现实和真实的边界。80名成年人回忆了4种环境中的一种目标位置：胶合板，虚拟墙壁与一大块真实的胶合板重合;通过，虚拟墙壁与空白空间重合，参与者可以通过它;通过，虚拟墙壁向下投影，在透明地板下可见;和锥体，墙壁被交通锥体取代。一种情况下的特征是边界，看起来像边界（胶合板）; 2种情况下的特征不是边界，但看起来像边界（通过/通过）; 1种情况下的特征不是边界，看起来不像边界（锥体）。反应的精确度和偏差仅作为看起来像边界的函数而改变。这表明空间编码的变化与环境布局的视觉特性的联系比与它们是否包含物理边界（运动障碍）的联系更紧密。
Large walls and other typical boundaries strongly influence neural activity related to navigation and the representations of spatial layouts. They are also major aids to reliable navigation behavior in young children and nonhuman animals. Is this because they are physical boundaries (barriers to movement), or because they present certain visual features, such as visually extended 3D surfaces? Here, these 2 factors were dissociated by using immersive virtual reality and real boundaries. Eighty adults recalled target locations in 1 of 4 environments: plywood, where a virtual wall coincided with a large piece of real plywood; pass through, where the virtual wall coincided with empty space and participants could pass through it; pass over, where the virtual wall was projected downward to be visible underneath a transparent floor; and cones, where the walls were replaced with traffic cones. One condition had features that were boundaries and looked like boundaries (plywood); 2 had features that were not boundaries but looked like boundaries (pass over/through); and 1 had features that were not boundaries and did not look like boundaries (cones). The precision and bias of responses changed only as a function of looking like a boundary. This suggests that variations in spatial coding are more closely linked to the visual properties of environmental layouts than to whether they contain physical boundaries (barriers to movement).