Binding object features to locations: Does the "spatial congruency bias" update with object movement?
Binding object features to locations: Does the "spatial congruency bias" update with object movement?
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DOI：
10.3758/s13414-017-1350-5
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发表时间：
2017-08
期刊：
影响因子：
--
通讯作者：
Golomb JD
中科院分区：
文献类型：
--
作者：
Bapat AN;Shafer-Skelton A;Kupitz CN;Golomb JD
视觉认知的基本挑战之一是我们的视觉系统如何将关于物体特征的信息与其空间位置相结合。最近一种与物体-位置绑定相关的现象--空间一致性偏差--揭示了如果两个物体出现在相同的空间位置，与第二个物体出现在不同的位置相比，它们更有可能被感知为具有相同的身份或特征。空间一致性偏差表明，不相关的位置信息与其他对象属性一起自动编码并绑定到其他对象属性，从而偏向他们的感知判断。在这里，我们通过询问当一个对象移动到一个新的位置时会发生什么来进一步探索这一新现象及其在对象-位置绑定中的作用：空间一致性偏差是否对时空邻接线索敏感，或者它仍然与原始对象位置相关联？通过四个实验，我们发现空间一致性偏差仍然与原始物体位置密切相关。然而，在某些情况下，例如，当第一个对象在移动后暂停并保持短暂时间可见时，在原始位置和更新位置都发现了一致性偏差。这些数据表明，空间一致性偏差更多地基于低级视觉信息，而不是时空邻接线索，并反映了一种对象-位置绑定类型，该绑定主要与原始对象位置相关联，并且只有在移动之后有时间对特征进行重新编码和重新绑定时，才可能更新到对象的新位置。
One of the fundamental challenges of visual cognition is how our visual systems combine information about an object's features with its spatial location. A recent phenomenon related to object-location binding, the “Spatial Congruency Bias”, revealed that two objects are more likely to be perceived as having the same identity or features if they appear in the same spatial location, versus if the second object appears in a different location. The Spatial Congruency Bias suggests that irrelevant location information is automatically encoded with and bound to other object properties, biasing their perceptual judgments. Here we further explored this new phenomenon and its role in object-location binding by asking what happens when an object moves to a new location: Is the Spatial Congruency Bias sensitive to spatiotemporal contiguity cues, or does it remain linked to the original object location? Across four experiments, we found that the Spatial Congruency Bias remained strongly linked to the original object location. However, under certain circumstances, e.g. when the first object paused and remained visible for a brief period of time after the movement, the congruency bias was found at both the original location and the updated location. These data suggest that the Spatial Congruency Bias is based more on low-level visual information than spatiotemporal contiguity cues, and reflects a type of object-location binding that is primarily tied to the original object location and may only update to the object's new location if there is time for the features to be re-encoded and re-bound following the movement.
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